During a power outage, a home generator can keep the lights on, the HVAC running, and the appliances powered, but there are a lot of options out there, from whole-house to quiet inverter models. Because we’re big on helping our readers navigate the array of products that make life easier, our team tackled the task of testing home generators.

These independent power sources range in output for a variety of needs. After researching more than 40 top models, we selected the highest-scoring models in a range of categories for hands-on testing. Our favorite was the Dual-Fuel Generator from Champion thanks to its versatile operation and multiple outlets.

Whether you’re looking for a generator to run an entire home or to power only a few essentials, you can find a top-notch one in this lineup. Keep reading to find out how each one performed and to learn more about what to consider when shopping for the best home generator for your needs.

1. BEST OVERALL: Champion 8500-Watt Dual-Fuel Generator With CO Shield
2. BEST BANG FOR THE BUCK: Pulsar 2200-Watt Dual-Fuel Quiet Inverter Generator
3. BEST INVERTER: Westinghouse iGen4500 Inverter Generator
4. BEST WHOLE-HOUSE: Briggs & Stratton PowerProtect DX 26kW Home Generator
5. BEST QUIET: Honda 2200-Watt Inverter Generator With CO-Minder
6. BEST DUAL-FUEL: Westinghouse WGen9500DF Dual-Fuel Generator
7. BEST POWER STATION: Generac GB2000 Portable Power Station
8. ALSO CONSIDER: Champion 7500-Watt Dual-Fuel Generator

Product Comparison

Our Top Picks

When shopping for a generator, it’s easy to become overwhelmed by the available options on the market. While the following models vary in fuel type, electrical load, and intended use, each one earned a spot on this lineup by excelling in real-world tests.

Best Overall

Champion 8500-Watt Dual-Fuel Generator With CO Shield

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What We Like

• Runs on both gasoline and propane
• Suits a range of power needs with 6 outlets
• Built-in carbon monoxide (CO) shutoff

What We Don’t Like

• Relatively heavy at 209 pounds

Our Ratings: Ease of Use 5/5; Noise 4/5; Portability 5/5; Power 5/5; Value 5/5

Product Specs

• Wattage: Gasoline: 10,625 peak watts and 8,500 running watts; propane 9,565 peak watts and 7,650 running watts
• Fuel: Gasoline or propane
• Outlets/ports: One 120 volt (V)-30 amp (A) locking outlet; one 120/240V-30A locking outlet; four 120V-20A ground-fault circuit interrupter (GFCI) outlets
• Weight: 209 pounds

Read our full review: Champion 8500-Watt Dual-Fuel Generator With CO Shield

This Champion 8,500-watt generator comes from a well-known manufacturer of quality generators, and it excelled in our hands-on tests. This dual-fuel generator runs on gasoline or propane, so if you stock up on both, you’ll be ready for any power emergency.

We tested several power tools and appliances with the Champion. We also connected it to a travel trailer’s 30A cord, and it generated enough power to run all our appliances without flipping any breakers, even at maximum load. The Champion features six outlets, a digital display for monitoring runtime and power output, and a built-in detector that shuts down the generator if it registers a hazardous carbon monoxide gas level.

However, this is a heavy unit. It weighs 209 pounds without fuel, making it a challenge to lift in and out of the back of a pickup truck bed. But for a powerful home generator to run several tools or appliances simultaneously, this Champion model is tough to beat.

Get the Champion 8,500-watt home generator at The Home Depot.

Best Bang for the Buck

Pulsar 2200-Watt Dual-Fuel Quiet Inverter Generator

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What We Like

• Light enough to move around without strain
• Easy to set up and get the engine running
• Ability to run on either propane or gasoline

What We Don’t Like

• Access panel to change the oil was difficult to remove
• Changing the oil required tipping the generator on its side

Our Ratings: Ease of Use 4/5; Power 4.5/5; Portability 5/5; Noise 4/5; Value 4.5/5

Product Specs

• Wattage: Gasoline: 2,200 peak watts and 1,800 running watts; propane: 2,000 peak watts and 1,600 running watts
• Fuel: Gasoline or propane
• Outlets/ports: Two 120V-15A AC outlets; one USB-A port
• Weight: 46.5 pounds

A no-frills dual-fuel generator that’s small enough to tuck away in the corner of a garage or in a truck bed, the Pulsar 2200-watt generator delivered an easy experience powering our test equipment. The 1.18-gallon generator can run for up to 8 hours on half load on a single tank of gas.

Setting up the generator for the first time was fairly straightforward, though filling the oil for the first time proved to be a challenge. The side panel that we needed to unscrew and pop off to access the oil fill port and dipstick was difficult to remove. We also had to lay the generator on its side to fill it with oil, which required a bit of balancing as it’s not completely flat. Balancing while pouring oil was a bit tricky, to say the least. Starting it was a piece of cake. Turning on the Pulsar requires pulling a recoil start, but the engine kicked on after just a couple of pulls—even in the cold.

We used several appliances, including a couple of heat guns and hair dryers at the same time to test the generator at different loads. As promised, the generator handled a combined 1,800 watts without much issue and shut power off when we overloaded it with 2,300 watts.

The Pulsar’s noise level seemed louder than expected, but it was still in a reasonable range for its output. It’s a great option for budget-priced backup power for light-duty power needs such as small DIY projects and powering a couple of household appliances during an outage.

Get the Pulsar home generator at Amazon or Walmart.

Best Inverter

Westinghouse iGen4500 Inverter Generator

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What We Like

• Remote control offers starting and stopping from a distance
• Eco mode saves energy when power draw is minimal
• Extendable handle and wheels make it easy for 1 person to move

What We Don’t Like

• Only runs on gasoline with no option for propane

Our Ratings: Ease of Use 5/5; Noise 4/5; Portability 4/5; Power 4.5/5; Value 4.5/5

Product Specs

• Wattage: 4,500 peak watts and 3,700 running watts
• Fuel: Gasoline
• Outlets/ports: One 120V-30A outlet; two 120V-20A outlets; 2 USB-A ports
• Weight: 104.7 pounds

Read our full review: Westinghouse iGen4500 Inverter Generator

It’s hard to beat Westinghouse’s 4,500-watt inverter generator for power output, versatility, and portability. It’s not the highest-wattage model we tested, but it excelled at running several power tools, including grinders and saws, as well as the essentials in our travel trailer. Setting it up was a snap—all we had to do was add oil and fill the gas tank. Best of all, it’s quiet and efficient.

The iGen4500 has a 3.4-gallon gasoline tank that can run up to 18 hours. Since it’s an inverter, it only burns enough to cover the appliances or tools it’s powering. This makes it more eco-friendly than noninverter models that burn fuel at a set rate no matter how much power is being drawn. This backup generator offers a variety of power ports, including a 30A port, two 20A ports, and two USB ports. However, it weighs almost 105 pounds without fuel, so lifting it up and down can be challenging for one person.

While this would be a great emergency generator, we also think it’s a top-notch pick for RVs, camping, and remote powering due to its quiet and efficient operation.

Get the Westinghouse home generator at Amazon, Tractor Supply Co., or Walmart. 

Best Whole-House

Briggs & Stratton PowerProtect DX 26kW Home Generator

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What We Like

• Turns on automatically within seconds of a power outage
• Supplies ample power to run all appliances, including HVAC
• Users can configure it to run weekly self-tests

What We Don’t Like

• Can’t be installed inside a garage, shed, or other enclosure
• Local codes may require licensed pros to hook up

Our Ratings: Ease of Use 4/5; Noise 4/5; Portability N/A; Power 5/5; Value 4.5/5

Product Specs

• Wattage: 30,000 peak watts and 26,000 running watts
• Fuel: Propane or natural gas
• Outlets/ports: Not applicable
• Weight: 540 pounds

The only standby generator we tested, the Briggs & Stratton PowerProtect is in a class by itself. It requires professional installation, often required by local code, because it connects to electrical power at the meter and to a home’s gas line. Prior to installation, this unit required site analysis and preparation (trenching in electrical lines and pouring concrete for a pad), and we also had an assessment to ensure it could run every appliance at the test home.

Once installed, we tested the generator by shutting off the electricity at the meter, and it started automatically in about 15 seconds. Surprisingly, the Briggs & Stratton only generated about 72 decibels of noise during operation. We turned on an HVAC unit, electric range, and all the lights in the house. We even plugged in some power tools as well, and the generator provided enough power for it all.

Although they can be pricey depending on capacity and local installation fees, standby generators are the best choice for ensuring reliable and comprehensive backup power.

Get the Briggs & Stratton home generator at Lowe’s.

Best Quiet

Honda 2200-Watt Inverter Generator with CO-Minder

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What We Like

• Whisper-quiet operation
• Provides cleaner electricity with lower noise
• Lightweight construction and compact build
• Reliable and easy-to-start engine
• CO-Minder advanced CO detection

What We Don’t Like

• Not equipped with USB ports
• Premium price point

Our Ratings: Ease of Use 5/5; Noise 4/5; Portability 4/5; Power 5/5; Value 4/5

Product Specs

• Wattage: 2,200 peak watts and 1,800 running watts
• Fuel: Gasoline
• Outlets/ports: Two 125V-20A outlets
• Weight: 47.4 pounds

The Honda EU2200i inverter generator offers reliability, simple operation, and low noise. Honda estimates that the EU2200i runs at 48 to 57 weighted decibels, and we found that its sound easily gets lost in the background. It comes equipped with a Honda GXR120 commercial series engine that delivers 120 volts and up to 1,800 running watts and 2,200 starting watts. A 125V-20A duplex outlet allows users to plug in two electrical cords without worrying about overloading the generator. T

his machine is compatible with the Honda My Generator mobile app for remote monitoring and is parallel-ready for use with a second Honda EU2200i (connection kit sold separately). It also features a built-in carbon monoxide sensor and safety shutoff. In two separate tests, we used the Honda generator to power a full-size refrigerator for 4 hours and then a portable table saw and miter saw for an 8-hour workday. We even added a USB hub to charge a phone and laptop.

In each test, the devices worked perfectly, the electrical current remained strong and steady, and the breaker didn’t trip. The generator’s molded plastic handle is well placed, and when combined with the machine’s proportions, the unit is fairly easy to carry, even though it weighs nearly 50 pounds. We would have appreciated a built-in USB port in addition to the wall-style outlet, though. As it was, we had to unplug a tool that draws 10A just to charge a device using less than 3A.

Still, a clean electrical current and quiet operation in a lightweight, easy-to-stow package make the Honda an excellent choice for a home backup generator.

Get the Honda home generator at Amazon, Lowe’s, The Home Depot, or Northern Tool + Equipment. 

Best Dual-Fuel

Westinghouse WGen9500DF Dual-Fuel Generator

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What We Like

• Runs on either gasoline or propane
• Comes with 3 ways to start
• Features digital data display for real-time information

What We Don’t Like

• On the heavy side at 211 pounds

Our Ratings: Ease of Use 4.5/5; Power 5/5; Portability 4/5; Noise 4/5; Value 4.5/5

Product Specs

• Wattage: Gasoline: 12,500 peak watts and 9,500 running watts; propane: 11,200 peak watts and 8,500 running watts
• Fuel: Gasoline or propane
• Outlets/Ports: Four 120V-20A GFCI outlets, one 120V/240V-30A outlet, and one 120/240V-50A outlet
• Weight: 211 pounds

Westinghouse WGen9500DF is an all-around top pick when the power goes out. It has a 6.6-gallon gasoline tank that will keep it running for 12 hours at 25 percent load and up to 8 hours at 50 percent load. (Actual tank runtime may vary depending on gasoline quality and electrical load.) With a 20-pound propane tank, the generator will run up to 7 hours at 50 percent load.

This is a heavy model, weighing 211 pounds, but it mainly came assembled—all we had to do was attach the wheels and the handle. We tested it first with gasoline, followed by propane, and the results were excellent with both fuels. We ran several power tools simultaneously and powered an oven/range and a clothes dryer (at separate times). A nice perk was the remote fob, which allowed us to start the generator from 90 feet away.

The WGen9500DF is a good pick for those who want an emergency generator to power more than just a couple of cell phones.

Get the Westinghouse home generator at Amazon. 

Best Power Station

Generac GB2000 Portable Power Station

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What We Like

• Charges to full capacity in 3 to 4 hours
• Enough power for tools, appliances, and digital devices
• Designed for emergency, off-grid, or recreational use

What We Don’t Like

• Solar panels are not included

Our Ratings: Ease of Use 5/5; Noise 5/5; Portability 3.5/5; Power 4.5/5; Value 5/5

Product Specs

• Wattage: 3,200 peak watts and 1,600 running watts
• Power source: AC, DC, or solar
• Outlets/ports: Three 120V-13.3A outlets; one 12V DC port; 2 USB-A ports; 2 USB-C ports
• Weight: 43 pounds

A distinct downside with fuel-powered generators is the inability to run them indoors due to hazardous fumes. Power stations, however, can be used indoors to power several appliances and electronic items, depending on their capacity. The Generac GB2000 is a beefy power backup that provides up to 1,600 running watts of electricity and comes with three standard outlets, four USB ports, and a 12V DC car port. Charging the GB2000 took about 3.5 hours when we plugged it directly into a standard AC outlet.

We also charged it with solar panels, but the day was slightly overcast, which kept it from charging quickly—it took about 5 hours to charge from 28 to 100 percent. A sunnier day or stronger solar panels would likely have charged it more quickly. When fully charged, we used it to run our fridge, a miter saw, lamps, a laptop, and cell phone—not all simultaneously. We made about 20 cuts with the miter saw and noticed no lag in the saw’s power. It took a couple of hours to fully charge the cell phone by placing it on the wireless charging panel at the top of the GB2000.

We left the fridge and laptop plugged in for several hours without depleting the battery—we still had 20 percent when we unplugged them. The Generac is well suited as an emergency backup for essential appliances or a remote power source for tailgating and camping, but at 43 pounds, it’s a bit heavy if you plan to carry it very far on trails.

Get the Generac home generator at Amazon, Lowe’s, Tractor Supply Co., The Home Depot, Walmart, or Generac.

Also Consider

Champion 7500-Watt Dual-Fuel Generator

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What We Like

• Fuel efficient
• Easy-to-use electric start is user-friendly
• Digital screen tracks voltage, hertz, and runtime
• Features a built-in surge protector and automatic low-oil shutoff

What We Don’t Like

• Higher fuel consumption than more efficient models
• Heavy at 205 pounds

Our Ratings: Ease of Use 4.5/5; Noise 4/5; Portability 4/5; Power 5/5; Value 5/5

Project Specs

• Wattage: Gasoline: 9,375 peak watts and 7,500 running watts; propane: 8,400 peak watts and 6,750 watts running
• Fuel: Gasoline or propane
• Outlets/ports: One 120/240V-30A locking outlet; one 120V-30A locking outlet; four 120V-20A GFCI outlets
• Weight: 205 pounds

This Champion 7,500-watt dual-fuel generator delivers enough electricity to power up an off-grid jobsite or keep critical home circuits running through a utility outage. It includes numerous convenience features, like a push-button electric starter, covered outlets, and a fold-out transport handle. In our tests, the push-button starter worked perfectly, no matter the weather.

We appreciated its two locking 30A outlets (one 120V and one 120/240V) for powering a home, workshop, RV, or heavy-duty tools like portable welders. It also has four household-style 120V-20A outlets for lower-wattage applications. On a 7.7-gallon tank of gas, this generator supports a 50 percent load for up to 10 hours or up to 5.5 hours with a 20-pound propane cylinder. Using propane, we ran a portable table saw, miter saw, router, and air compressor for 4 hours and had just under half a tank of propane left over.

On the downside, its heavy weight made it tough to navigate across a yard and lift in and out of a truck. It also does not include an idle controller, which leads to more fuel consumption than eco-throttle-equipped generators. Still, it offered plenty of power and access points for the price.

Get the Champion 7500-watt home generator at Blain’s Farm & Fleet.

Jump to Our Top Picks

How We Tested the Best Home Generators

Before testing, we carefully researched more than 40 portable and standby generators and over a dozen high-capacity power stations. We looked at consumer satisfaction, ease of use, price, and versatility. We also considered brand reputation—manufacturers like Champion, Honda, Westinghouse, and Briggs & Stratton are highly respected in the generator industry.

Our goal was to pinpoint models that would suit diverse user needs. This list includes powerful, gas-fueled, and dual-fueled generators in addition to quieter inverters and even solar power stations.

Team members assembled and fueled the generators using the appropriate fuel types. Then we plugged in power tools, home appliances, and electronic devices to see if the generators would produce the advertised wattage. We used an online wattage calculator to help us estimate the correct wattage for testing. In addition, we took note of the noise the generators produced when operating (some models are quieter than others), and we took portability into account.

For each generator, we awarded points based on quality and performance. At the end of testing, we averaged the points to determine which models were best suited to specific applications and users.

Testing Stats

Products tested: 8

Hours spent testing: 55

Tests performed: 5

Average price: $1651

What to Consider When Choosing a Home Generator

Several factors can affect each type of generator’s overall functionality when the power goes out. Keep the following considerations in mind when searching for the best home generator to keep you powered up when severe weather or a natural disaster causes an outage.

Types of Home Generators

Finding the best generator for your power needs involves weighing the four types available. Each type has its own set of pros and cons, and one is likely to suit your home’s specific needs better than the others.

Home Standby Generators

Home standby generators, also called whole-house generators, are large, permanently installed generators that connect to a home’s electrical panel for backup power during an electrical outage. They are equipped with an automatic transfer switch (explained in later sections) that automatically switches on the generator’s power supply when it detects a loss of utility power. Home standby generators are most commonly powered by natural gas or propane, but some diesel models are available.

Home standby generators have the largest power ratings and are usually, though not always, powerful enough to satisfy the electrical demands of an entire home. They can power utilities such as water heaters and central air conditioners. The downside is that they’re the most expensive to purchase and install and require installation by certified professionals. An electrician is needed to connect it to the electrical panel, and a plumber may be required to connect the propane or natural gas line to the generator.

Portable Generators

As the name suggests, portable generators are small and can be moved to different locations. Compared to standby options, these are cheap home generators. They can have a wide range of power output ratings. Some may only power a limited number of electrical items and appliances, while large-capacity portable generators may have a 30A outlet for connecting a transfer switch.

Many options are gas-powered generators, but some are powered by diesel or propane. Multifuel generators (dual- and tri-fuel) are powered by multiple fuel sources, including gasoline, diesel, propane, and/or natural gas. Be advised that fuel-powered generators should never be used indoors since the engine can emit a toxic level of CO, leading to sickness or death.

Inverter Generators

Inverter generators are technically a type of portable generator, but they offer a different set of pros and cons. As opposed to conventional generator engines that constantly operate at the same output rate, inverter generators adapt to power demand.

This makes them more fuel efficient, allowing them to have smaller fuel tanks and more portability than other generators. This efficiency reduces their CO emissions. It also makes them quiet generators, usually only producing around a 60-decibel noise level—the same volume level as a typical conversation.

All of these advantages make them a popular choice among campers and RVers who value silent operation and portability. The disadvantages? Inverter generators are typically more expensive than regular portable generators and generally produce less power.

Portable Power Stations

Portable power stations are essentially battery banks that store electrical power. Instead of using gasoline, diesel, propane, or natural gas, power stations are charged in a standard electrical outlet or via solar panels. Solar-powered power stations are often called solar generators and offer a practically unlimited and renewable power source—just as long as the sun is shining.

These power stations are usually designed to be compact and lightweight for incredible portability. They are also virtually silent when in operation. In addition, they can be safely used indoors since they don’t produce any harmful emissions.

The primary disadvantages are that they’re usually more expensive than conventional portable generators and have significantly lower power output. That being said, they can be used to power a handful of essential appliances during an outage.

Fuel or Energy Type 

• Gasoline: A widely available fuel source, gasoline is a common fuel source for portable generators. The primary disadvantages are that gasoline is more expensive and less efficient than other fuel sources, and gasoline engines typically emit the highest levels of CO. Also, storing gasoline in a gas can for long periods of time requires a fuel stabilizer and can present a significant fire hazard if stored incorrectly.
• Diesel: Although generators fueled by diesel aren’t as common as those fueled by gasoline, diesel is more efficient and can be stored for longer periods without a stabilizer. Diesel storage also doesn’t pose as significant a fire hazard as gasoline.
• Propane: Propane is a common fuel source for standby generators and may either be tied into a home’s primary propane gas tank or have a designated tank strictly for the generator. It’s not commonly a primary fuel source for portable generators, but some tri-fuel and dual-fuel generators accommodate propane as a backup fuel source. The main disadvantages are that propane isn’t as energy efficient as other fuel sources, and a generator fueled by propane will usually have a lower runtime and produce less power. Propane also presents a fire hazard if stored incorrectly.
• Natural gas: As a fuel source, natural gas is used exclusively with standby generators. For use with a generator, it is tied into a home’s natural gas line to offer a practically limitless source of fuel. The disadvantages are that natural gas is less energy efficient than propane and considerably less energy efficient than diesel and gasoline.
• Solar energy: As a source of power for portable battery banks, solar energy is silent and clean. It’s also free. The disadvantages are that the power capacity is determined by the number and size of the panels and the size of the battery it charges. A solar panel’s ability to charge a battery is also dictated by the amount of available sun, so it isn’t as reliable a fuel source as other options.

Size

A generator’s size equates to the amount of power in watts it can generate, ranging from 800 to greater than 50,000-watt power capacity. Generators are sized in both “peak watts” (also called “starting watts”) and “running watts,” but the running watts rating reveals how many continuous watts the generator can supply to keep the electricity running to the connected items. Peak watts are the number of watts the generator can produce for a few seconds to satisfy the extra demand from starting motor-driven items like power tools.

The running watts rating dictates the number of electrical appliances you can run simultaneously and for how long. Because a generator’s starting watts can be 1,000 to 2,000 watts greater than its running watts, it’s important to understand the difference when determining your home’s power requirements.

Power Requirements

To determine the generator size you need, calculate the total number of watts your most essential electrical items consume. All electrical appliances are required to have a label that displays their wattage rating; you simply need to add together the wattage figure listed on each item you want to power during an electrical outage.

Generally speaking, a refrigerator consumes between 700 and 1,200 watts; a window air conditioner consumes around 1,000 watts; a portable space heater consumes about 1,500 watts; and lights can be anywhere between 60 and 600 watts. Most households typically require around 5,000 watts to power the most essential components.

Transfer Switch

A transfer switch connects a generator to a home’s main electrical panel and allows you to switch, or “transfer,” between grid power and generator power. There are both manual and automatic transfer switches. Manual transfer switches require you to physically switch over the power at your electrical panel when the power goes out, while an automatic transfer switch automatically switches over power from the grid to generator power when it detects a loss of power.

Convenience

Generators can be equipped with various features that make their operation as convenient as possible. These include:

• Electric start: Instead of using a pull cord to manually start a generator, many modern generators offer an effortless electric start. This mechanism can be in the form of a push button, a switch, and even a remote control.
• Multiple outlets: Not only are multiple outlets convenient, but they also help distribute the generator’s electrical load when powering multiple appliances. Having a generator with at least four household electrical outlets is recommended for efficiently spreading the electrical load. Generators may also have household 30A, RV 30A, and 50A outlets as well as USB ports.
• Low-oil shutoff: A generator with a low-oil shutoff will automatically turn off when the oil falls below a certain level. This feature can save a generator from irreparable engine damage caused by low oil levels.
• Fuel gauge: A fuel gauge allows you to closely monitor the fuel level in the generator. This feature is typically only necessary for gasoline- and diesel-powered generators with internal fuel tanks. However, solar-powered battery banks usually have battery life indicators, and propane tanks often have integrated fuel gauges.

Safety 

Along with the various features that contribute to convenience, there are also a few important safety features that many generators incorporate into their design, particularly with regard to CO detection. These include:

• Automatic CO shutoff: To reduce the risk of poisoning, many portable generators are equipped with an internal CO sensor that will automatically shut off the generator when CO levels reach a certain level. This feature can be labeled as “CO Sense,” “CO Shield,” “CO Protect,” and similar designations.
• Low-CO engine: Along with an automatic CO shutoff, some generator engines are specifically designed to emit considerably less CO. Despite being safer than conventional engines, low-CO engines still shouldn’t be operated indoors.

Tips for Using a Home Generator

Operating a generator isn’t complicated, but there are a few tips you’ll want to keep in mind to ensure effective and safe operation and avoid any harm to yourself or your generator when the power goes out.

First of all, it’s important to use extension cords that are sufficiently powerful. As a general rule, use at least 12-gauge outdoor-rated electrical cords for larger appliances (like refrigerators) and at least 14-gauge cords for everything else. Cord length is also a concern since the voltage drop from cords that are too long can damage or destroy the appliances they’re supplying. Although you’ll want to keep a portable generator outside and away from your home, remember not to exceed a 100-foot extension cord length.

When running a home generator, it’s best to keep it on a level surface. If a generator is placed on a slope or hill, the internal lubrication system could malfunction and lead to premature engine wear and damage. Finally, ensure the generator has cooled down before you refill it since spilling gasoline on a hot engine can cause a fire.

Keep the following tips in mind:

• Prevent theft by securing your generator with a lock and chain if you store it outside.
• Don’t run your generator with stale fuel to avoid start-up issues.
• Keep extra oil and filters on hand to ensure you can maintain the recommended maintenance schedule through extended power outages.

FAQs 

Since generators can be both lifesaving and expensive, it’s natural to have some questions before you’re confident in your decision. To this end, consider the answers to these frequently asked questions. Together with the above shopping considerations, these answers provide you with just about everything you need to know about emergency power generators.

Q. Do I need a permit for a home generator?

Most municipalities and towns require that you have a permit before a standby generator is installed. However, not all locations have this requirement. Check with your local zoning authority to find out if a permit is required in your community.

Q. What size generator do I need for my house?

To determine the necessary power rating for your generator, add up the wattage of all the appliances you want to run during an electrical outage. As a general rule, a generator should have at least a 5,000-watt capacity to power a home’s essential appliances. But, your home could require substantially more power than that.

Q. Do home generators need oil?

Yes, fuel-powered home generators require oil to operate properly without wearing out the moving parts.

Q. Where should a whole-house generator be located?

Most manufacturers recommend that the whole-house generator be installed at least 5 feet from doors, windows, vents, and any flammable material. There may also be local regulations about the placement of a whole-house generator, so make sure to check local guidelines to ensure that your whole-house generator meets local building codes and installation guidelines.

Q. Can you plug a generator into a house outlet?

No. A generator should not be plugged into a house outlet because it is both dangerous and illegal in many locations. This is called backfeeding and it can severely damage the home’s electrical system or even cause a fire. Additionally, any technicians who are working on electrical lines on the same power grid are at increased risk of electrocution.

Q. How do you hook up a generator to your house?

You can connect a generator to individual appliances using a series of extension cords, or if you want direct power for entire circuits in the home, have a standby generator professionally installed.

Q. How long does it take to install a whole-house generator?

On average, it will take an experienced technician about 1 to 2 full days to complete the installation of your whole-house generator. It could take 1 to 2 weeks to prep for the installation, such as pouring a concrete pad and running the wires connecting the generator to the electrical panel.

Q. How long do whole-house generators last?

The exact lifespan depends on the specific product, but in general, the overall lifespan of a whole-house generator is about 1,500 to 3,000 hours.

Meet the Testers

The Bob Vila test team is made up of contractors, remodelers, home design enthusiasts, and freelancers from across the nation. Each member is dedicated to delivering high-quality product information to our readers so they can shop with confidence, knowing the products they purchase have been fully tested and vetted.

Austin Fracchia is a writer and manager at BobVila.com. As a DIY hobbyist, he tests products with a focus on user-friendliness and reliability so readers can find the right products for their home projects.

Zach Lazzari is a freelance writer splitting time between the great outdoors, travel, and DIY projects ranging from camper builds to home renovations and maintenance.

Glenda Taylor is a contractor, product tester, and writer. She focuses primarily on construction, woodworking, and DIY tools and techniques.

Mark Wolfe is a writer and product tester, focused on mechanical durability and user convenience. As a green industry veteran and an avid DIYer, he has gained valuable insight on choosing dependable power equipment and avoiding poor-quality machinery.

Additional research was provided by Timothy Dale and James Fitzgerald.

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Window insulation kits offer an affordable way to cut the cost of your energy bill and make a home less drafty. For those who cannot afford to replace windows, a window insulation kit is a great alternative.

Most window insulation kits work the same way: A sheet of heat-shrink plastic or other insulating material is attached to the window panes with double-sided tape or magnetic strips to add a layer of insulation. The best window insulation kits are easy to install and provide an effective barrier to drafts. Windows that have been treated with insulation cannot usually be opened, meaning these kits are a seasonal solution to drafty windows.

To help you decide which of these window insulation kits would best fit your needs, I researched 12 products and then performed hands-on testing with all of the following insulation kits. Read on for shopping considerations when selecting this type of window treatment and to learn why these are among the best window insulation kits available.

1. BEST OVERALL: 3M Indoor Window Insulator Kit
2. RUNNER-UP: Duck Brand Max Strength Window Kit 
3. BEST BANG FOR THE BUCK: Duck Brand Shrink Film Window Insulation Kit
4. BEST FOR OUTDOOR USE: 3M Outdoor Window Insulation Kit
5. BEST INSULATION TAPE: Yotache Weather Stripping Foam Seal Tape
6. BEST FOR MULTIPLE WINDOWS: Frost King Window Insulation Shrink Kit

Product Comparison

	Length	Thickness	Reusable
3M Indoor Window Insulator Kit	17.5 feet	0.75 mils
Duck Brand Max Strength Window Kit	Multiple	1.5 mil
Duck Brand Shrink Film Window Insulation Kit	17.5 feet	0.7 mil
3M Outdoor Window Insulation Kit	7 feet	0.75 mil
Yotache Weather Stripping Foam Seal Tape	19.7 feet	0.75 mil
Frost King Window Insulation Shrink Kit	Multiple	Multiple

Our Top Picks

The following recommendations are among the best window insulation kits available in their respective categories.

Best Overall

3M Indoor Window Insulator Kit

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This Bob Vila Approved product carries our brand’s highest level of recommendation.

Bob Vila Approved recognizes the household and DIY products that impressed us most in our real-world testing and that exemplify core values of the Bob Vila brand, including craftsmanship, innovation, and value for the dollar. Winners of this designation come recommended by our professional review team and are personally approved by Bob Vila.

Product Specs

• Length: 17.5 feet
• Thickness: 0.75 mils
• Reusable: No

What We Like

• Can be repositioned before pressed into place
• Single kit covers multiple windows
• The wrinkles are easy to remove quickly

What We Don’t Like

• Finding the ends of the sheet can be difficult

This 3M insulator kit comes with enough film to cover up to five windows measuring 5 feet long by 3 feet wide. This relatively thick film provides enhanced insulation thanks to its thickness of 0.75 mils (a unit of measurement equal to a thousandth of an inch). The film comes in one cut-to-fit sheet that measures 17.5 feet long by 5.16 feet wide. This kit also comes with a 27.7-yard roll of double-sided tape to facilitate installation and ensure it stays in place all season.

This was my favorite kit to install. I thought I would prefer the rolls of plastic sheeting, and it is true that this one was tricky to lay out and cut to size, but nonetheless, this kit allowed me to reposition the plastic a few times before pressing it down and heating it. Also, the kit does cover a lot of square footage, but the ends of the sheet can be tough, so it’s important to take your time. After I finished installing the kit, removing wrinkles was extremely easy. This kit provided the best results alongside the other 3M products that use the same plastic.

Read our full review: 3M Indoor Window Insulator Kit

Get the 3M indoor window insulation kit at Amazon.

Runner-Up

Duck Brand Max Strength Window Kit

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Product Specs

• Length: 10.5 feet (comes in multiple sizes)
• Thickness:1.5 mil
• Reusable: No

What We Like

• Sticks to some rougher surfaces
• Easy to cut to length and unravel
• Able to remove easily

What We Don’t Like

• Completely removing wrinkles is tedious

Cozy as the winter months can be, the cold outside can be brutal.

To keep a home insulated and warm in the winter, consider the Duck Max Strength window kit. It comes with everything required for insulating 5-foot-long by 3-foot-wide windows in bedrooms, offices, kitchens, and more, including film, tape, and an instruction manual. But it can be cut to fit smaller windows if necessary.

Made with puncture-resistant shrink film, this 126-inch-long by 62-inch-wide indoor option is perfect for high-traffic homes with children and pets. It’s easy to install and remove cleanly, making it suitable for first timers. For added reliability, this kit can be used on painted wood, aluminum, vinyl, and finished/varnished wood, but it can’t be used on plaster, drywall, or unfinished wood.

The Duck Brand window kit’s film is considerably thicker than other competing options, so I installed it over the window my 80-pound lab-pointer mix likes to jump at. To be fair, no film stood a chance against my dog, but it did stick to the windowsill that he has effectively destroyed over the past year. I was able to easily repair any damage with packing tape. Also, the Duck kits come in rolls, which are easy to cut to width and then drop down over the window for easy unfolding. It was really difficult to get the wrinkles out (it took over 30 minutes of heating with a blow dryer to get it reasonably clear), but it was easy to remove once I could get under the tape and pull it back.

Get the Duck Brand Max Strength window insulation kit at Amazon

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Best Bang for the Buck

Duck Brand Shrink Film Window Insulation Kit

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Product Specs 

• Length: 17.5 feet
• Thickness: 0.7 mil
• Reusable: No

What We Like

• Large amount of film provided
• Comes with film, tape, and a full instruction manual
• Can be applied on multiple surfaces

What We Don’t Like

• Difficult to remove the wrinkles and factory imperfections

Those who want to insulate on a budget can trust this shrink film kit from Duck Brand. With its crystal-clear shrink film and included double-sided insulating tape, this option can reduce energy consumption. At 210 inches long by 62 inches wide, this large film can be cut if required but works best for windows that measure 5 feet long by 3 feet wide. For convenience, this option is also offered in various size options.

This pick can also be applied to painted wood, aluminum, vinyl, and finished wood for more insulation, but it isn’t suitable for plaster, drywall, or unfinished wood varieties.

The kit was fairly easy to install, and it seemed reasonably durable. The roll-out installation made it manageable to unravel, and it featured quality adhesive tape that stuck well and was easy to remove the backing from. While it’s similar in thickness to most of the films we tested, it felt smoother out of the box. It also had a more substantial, higher-quality feel. Unfortunately, it was difficult to remove the existing wrinkles, and there were marks from the manufacturing plant in the film that I could not heat out.

Get the Duck Brand shrink film window insulation kit at Amazon.

Best for Outdoor Use

3M Outdoor Window Insulation Kit

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Product Specs

• Length: 7 feet
• Thickness: 0.75 mil
• Reusable: No

What We Like

• Easy to remove the wrinkles from the plastic
• Outdoor-quality adhesive that’s better for exteriors
• Suitable for indoor or outdoor installations

What We Don’t Like

• Difficult to install if it’s windy

If shoppers prefer to install insulating film on the outside of windows, they’ll want a long-lasting product that can hold up to the elements. This outdoor-use window film was created by 3M for that very purpose. Capable of covering up to two 5-foot-long by 3-foot-wide windows, 3M’s kit comes with a sheet of 0.75 mil-thick film that’s 7 feet long and 5.16 feet wide. It also includes just under 14 yards of high-quality double-sided tape. This kit installs like an indoor window film kit: cut, tape, shrink, and trim.

The only difference I could discern between this kit and the other 3M insulation kits was that the adhesive felt like it was of a better quality (though there was nothing wrong with the quality of the other kits). Otherwise, it was the same thickness with the same ease of wrinkle removal. The only challenge I found was that it was difficult and frustrating to install a sheet outside if there was any wind at all, so 3M might consider using a roll-type installation for this kit. But in my opinion, there is no reason it can’t be installed on an interior window as well, so it’s a good kit all around.

Get the 3M outdoor window insulation kit at Amazon.

Best Insulation Tape

Yotache Weather Stripping Foam Seal Tape

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Product Specs

• Length: 13 feet (comes in multiple sizes)
• Thickness: ⅜-inch (comes in multiple thicknesses)
• Reusable: No

What We Like

• Durable design will not rip
• Easy to cut and install
• Users can open or close the window after installation

What We Don’t Like

• The foam is a little too stiff to work with

New insulating tape is essential for those who love to reuse their insulation sheets. When new insulation is needed, Yotache’s high-density foam tape is a good option. This thick tape comes in two rolls, providing a combined 13 feet of length. It can be cut with ease using a scissors or blade.

The closed cell foam is made from chloroprene rubber foam and neoprene, making it weather- and dustproof, oil- and corrosion-resistant, and flame-retardant. As for the adhesive quality, this tape has a waterproof grid backing that can endure temperatures ranging from -58 to 302 degrees Fahrenheit. Though these are meant for windows, they can also be attached to furniture, cabinets, cars, boats, sports equipment, HVAC systems, plumbing, and more. Plus, there are a lot of thicknesses and lengths to choose from based on the user’s needs.

I installed the Yotache weather stripping at the bottom of one of my windows to see how well it worked. My windows are new and not leaky, so the tolerances were a little tight (though I was able to lock the sashes). However, if I did have leaky windows, I wouldn’t hesitate to buy this foam. It’s incredibly tough thanks to the fiberglass adhesive mesh on the back, yet it’s easy to cut and install. It also removes cleanly but won’t fall off on its own. Plus, there’s a benefit to being able to open the window if necessary. I found the foam too dense for my application, but I can see it making a world of difference for older windows with too much clearance.

Get the Yotache window insulation tape at Amazon.

Also Consider

Frost King Window Insulation Shrink Kit

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Product Specs

• Length: 62 inches per sheet (9 individual sheets)
• Thickness: 0.75 mil
• Reusable: No

What We Like

• Smaller sheets are easier to install
• Enough to cover most windows in a small home
• Good thickness and durability

What We Don’t Like

• Tape wasn’t as high quality as the other kits

Comfort aside, one of the most important reasons to insulate drafty windows is to save energy and lower monthly heating costs. Saving energy also benefits the environment. With Frost King’s window film, the company claims users can reduce their carbon footprint related to heating and cooling by up to 35 percent. This kit comes with enough individual sheets of plastic to cover up to nine windows measuring 5 feet long by 3 feet wide. It also includes 165 feet of double-sided tape.

This kit is very similar to other kits on the list, but that’s okay because they’re all good quality. I found that this one installed just like the others, yet with slightly smaller sheets that were a little easier to manage. The film is the same thickness and quality as most of the other kits, and considering it can cover up to nine windows, it’s a great deal. The wrinkles were very easy to remove with a blow dryer, but I did find the tape wasn’t as high quality as the kits from other brands.

Get the Frost King window insulation kit at Amazon.

ALSO TESTED

The StangH Portable Thermal Insulated Blackout Curtains didn’t meet my expectations. First, the way the suction cups are affixed to the curtain with keyrings is extremely frustrating and time-consuming. Also, unless the glass is warm, sticking a suction cup to a cold surface is very difficult. This curtain also looks terrible from the outside, as the suction cups are extremely visible. A standard thermal curtain will likely work almost as well, look much nicer, and be easier to install.

Jump to Our Top Picks

How We Tested the Best Window Insulation Kits

I wanted to ensure that any window insulation kit we recommended was truly effective and easy to install, so I put each of these kits to the test. I installed each kit according to the manufacturer’s instructions to see how easy they were to install and to determine the components’ quality. I also tested how well the plastic shrank and how easy the wrinkles were to remove. I left them on the windows for 2 days to see how well they worked (I even left a few on permanently to get through the winter). I then removed them to determine what that process was like and how much cleanup there would be.

It’s worth noting that without a laboratory full of expensive machinery and repeatable, consistent conditions, it’s hard to objectively determine which window insulation kits insulated better. However, all the kits we included on this list were effective at stopping any noticeable air movement or condensation.

What to Consider When Choosing a Window Insulation Kit

There are a number of factors to consider when shopping for window insulation kits. They’re available in different foil types, such as plastic, magnetic, and reflective. Features like film thickness, dimensions, reusability, and installation requirements will determine which insulation kit is most suitable for your home.

Type

Several window insulation product types are on the market: plastic film, magnetic barriers, and reflective foil insulation.

• Plastic film insulation kits are the easiest and most cost-effective way to seal off windows. These kits include double-sided tape and a plastic film that is attached to a window and then shrunk with a blow dryer to create an airtight seal.
• Magnetic insulation kits require DIYers to install magnetic strips around the window, then cut the film to match. They can be more challenging to install than plastic film kits, and the magnets often create a less-than-airtight seal.
• Reflective foil insulation kits use shiny metal insulation to keep drafts out. They aren’t transparent, so they block light, and their effectiveness depends on the seal, which can be challenging to get right. These insulation kits tend to be pricier than plastic film and magnetic options.

Dimensions

Windows come in all sizes, so look for kits with enough film to cover your windows. Most kits come with enough plastic sheets and double-sided tape to seal several windows. It’s essential for shoppers to know their windows’ dimensions to determine which kit will work for their home.

Air Lock

Window insulation kits create a trap for air between the window and the film. That trap is called an air lock. Double-sided tape, which holds the film in place on the window pane, will create an air lock. By pressing the film firmly onto the tape, users can create a strong bond that keeps drafts out.

Film Thickness

To create a long-lasting seal, durable film is a must. Durability is often determined by the film’s thickness. Thick film offers more resistance to punctures from kids or pets. It’s also easier to apply correctly, thus establishing a good seal. Thick film does a better job of insulating windows. Standard window film is about 19 micrometers (μm) thick, while heavy-duty film can be as thick as 38 μm.

Number of Windows

Some homes have only one or two truly drafty windows, while others have a slew of them. Choose a kit that has enough film to cover all the drafty windows. Many kits come in multipacks that can cover up to 10 windows. They come with sheets of film that can be cut to size, so every window that needs insulation can be covered.

Reusability

Window insulation kits are meant to be temporary solutions to drafty windows. The good news is that most of these kits are reusable, so buyers won’t have to purchase a new kit every year. Films 19 μm or thicker can be peeled off the double-sided tape, folded up, and stored when winter is over. The double-sided tape won’t be reusable, but a roll of double-sided tape is cheaper than a houseful of window kits.

Installation/Application

The best window insulation kits are effective, affordable, and easy to install. Most kits are installed by placing double-sided tape around the perimeter of the window jamb. Then, window film is applied to the tape. At the bottom of the window, the film is attached to a piece of tape on the sill, making a seal. Finally, the film is heated with a handheld blow dryer to create a transparent, airtight seal free from wrinkles.

FAQs

Still have questions about choosing the best window insulation kits? Here’s some more information to help you decide.

Meet the Tester

Tom Scalisi is a full-time DIY and construction writer for many of the largest websites in the industry, including BobVila.com, This Old House, Family Handyman, and Forbes as well as his own pest control blog.

The post Surprisingly, Our Favorite Window Insulation Isn’t the Thickest appeared first on Bob Vila.