6 Best Whole House Generators (Summer 2023) – Reviews & Buying Guide (2024)

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What are the benefits of having a whole house generator?

The greatest benefit of having a whole house generator at hand is your peace of mind, when you know that you’re life won’t be disturbedby electricity outages, be it for hours or days.

Whole home powering

6 Best Whole House Generators (Summer 2023) – Reviews & Buying Guide (1)Since the generator is connected to your house’s electrical panel, you don’t need to go out and turn the switch on, connect extension cords, and connect it your home appliances. Just sit back and relax because everything is happening on its own.

Automatic

You can expect the whole house generator to start working within five minutes of power outage. Some good quality generators start working in less than 10seconds so that you can continue your work without any disturbance. You also don’t have to worry about food in the refrigerator getting spoilt nor about the temperature of the house getting very cold.

Money saver

First of all, you don’t have to worry about the extreme heat or cold affecting your family and you because the generator will maintain room temperature. Instead of going to the hotel to stay in because of the storm or hurricane, you can stay in the comfort of your home and save hundreds of dollars. The food is maintained at high quality; you can shower, you can work from your home, and also keep the kids entertained inside the house because you can run the television and Wi-Fi using generator energy.

Homeowner’s insurance

Owning a house without home insurance is a risky business even though it is a costly expense. When you install a whole house generator for your house, most insurance companies give you a discount because the risks attached to your home are less compared to their average model.

Peace of mind

There’s nothing more comfortable than being in your home during a natural or man-made disaster. When you have a generator, you don’t have to worry about how you will go through it. You can continue living your life seamlessly and even help people out of danger.

What to look for in an ideal whole house generator?

6 Best Whole House Generators (Summer 2023) – Reviews & Buying Guide (2)

Output power, fuel consumption, and transfer switch

When it comes to generators, power is calculated in watts. The higher power outage, costlier the generator would cost. You need 600W to light up a refrigerator, 60 to 600W for lights (depending on how many you have in the house), 1,000W for a window air conditioner, 60 to 300W for a computer or laptop.

On an average, you at least need an 8kW generator to run your house smoothly for a couple of days.

We totally recommend you to buy the Generac 7043, which has a power output of 22kW and an automatic 200-amp transfer switch. It supports both natural gas and liquid propane, so you can choose whichever fuel you are comfortable with.

Quiet work

Often people complain about generators being super loud, which is also one of the reasons why they don’t purchase one. Some generators make so much noise that it won’t let you sleep in the night. It can be horrifying if you have small children at home, you sleep better when it is completely silent.

The Champion 100177is the most silent generator from our list. It makes up to 63dB noise level, which sounds like a low tone muffled conversation.

Safety for delicate electronics

When it comes to the safety of delicate electronics, all the generators that we’ve included in the list are good. They all have a total harmonic distortion of less than 5%, which means it protects most sophisticated electric equipment.

Size

The goal to purchase the smallest generator that fulfills all your needs. It will maximize fuel usage. It also depends on the frequency of power outages for which you will require a standby generator with a power output of around 20 to 22kW. The Generac 70422is an efficient generator for frequent use.

If you experience an occasional power outage or have less power needs, the smaller generator like the Generac 7210 with its 8kW power output would be enough. You can also consider getting a smaller dual-fuel generator or propane generator to cut your expenses on fuel.

Warranty

Taking into account how pricey these units are, be sure to go for at least 5-year warranty for whole house generators. As for the products we reviewed, the Champion 100177 comes with the longest 10-year warranty, which is really impressive.

Extra features

Ditch the hassle of pulling the string to start the generator and buy one that has an electric start. All generators mentioned on our list give you the option to choose between natural gas and liquid propane as fuel.

Always check if a generator comes with an automatic low-oil shutoff, which shuts off the engine when oil levels drop below the minimum.

How to Set Up a Whole House Generator?

6 Best Whole House Generators (Summer 2023) – Reviews & Buying Guide (3)Setting up a whole house generator is relatively simple, which doesn’t require any technical or professional help. It will take you around 10 to 15 minutes depending on how big the generator is.

Step 1. You will have to start by installing an electrical sub-panel and a transfer switch next to the main electrical panel.

Step 2. Then, redirect your generator’s critical circuits to the sub-panel from the main panel.

Step 3. Create a concrete base for your device. If you don’t want to increase your expenses, you can level the ground but make sure you there is no water source close to it.

Step 4. Place the generator on the base.

Step 5. Place a new high-pressure gas meter in a trench near the generator.

Step 6. Run a natural gas line, if that is your fuel of choice. Trace a wire from the gas meter to the generator and make the connection.

Step 7. Attach the generator’s electrical cable from the generator to your house.

Step 8. Connect the electrical and gas connection to the generator’s rear part.

Safety tips

1. Maintain distance from the house

Generators should be placed far away from the house. Some generators are certified to be kept as close as 18 inches from your house.

2. Never store it in enclosed areas

Never store the generator in your garage, crawl space, or your basem*nts even if it is well-ventilated.

3. Follow manufacturer instruction

No matter how much you know about generators, follow the instructions that come written in the manufacturer manual. The instructions differ from one manufacturer to other, so if you are switching from one brand to another, don’t ignore reading the installation and care instruction.

4. Monitor fuel safety

Switch off the generator when you are refilling it. Also, make sure it has cooled down because the fuel might spill or spark if you fill up when the engine is still hot.

Make sure you store the fuel in an air-tight, non-glass container.

Label it properly, so that there won’t be any negative incidences. Always store it away from a fuel-using electronic or equipment and in a cool and dry place.

5. Keep it dry

When you go to refill the generator or check the LCD screen for details, make sure your hands are completely dry, especially if it is on and running.

6. Avoid carbon monoxide

Make sure to install carbon monoxide battery-operated alarms in your house. If the generator gets overheated, it might leave the gas, which is fatal to human life.

7. Choose propane over gas

Propane is a more affordable option compared to gasoline because the latter needs a stabilizer. On the other hand, propane doesn’t need any stabilizer, and refueling is easy. All you need is to build an on-site propane storage unit.

8. Check local service

Always buy a generator that has a service center in your locality. It is convenient because you’ll get immediate service for maintenance and repair. Parts are also easily available.

6 Best Whole House Generators (Summer 2023) – Reviews & Buying Guide (2024)

FAQs

Is there a generator better than Generac? ›

Kohler Generator Reviews, Pros, and Cons

And compared to Generac generators, Kohler generators have the edge in the most important determining factor possible: reliability. Think of the primary reason you're buying a home generator in the first place: peace of mind in the event of a power outage.

What is the number one rated generator? ›

1. Honda. Not only are they manufacturers of some of the most reliable automobiles on the market, but Honda also produces some of the best generators available.

What is the best generator for a 2500 sq ft home? ›

If your home is 2,500 square feet or less, a generator with 20kW should suit your backup power needs well, particularly if you have gas heat and hot water. If the range top is also gas, all the better. 20kW is enough to run most house receptacles, lights, and up to a 5-ton central air conditioner.

Which company generator is best? ›

List of 10 Best Generators in India
  • Kohler Diesel Power Generator.
  • Honda Siel Power Generator.
  • Greaves Power Generator.
  • Sarrvad Portable Solar Power Generator ST200.
  • SR Portables Solar Generator.
  • Himalayan Power Solar Lithium Power Generator.
  • BKR Super Silent Inverter Generator.
  • Sarrvad Portable Solar Power Generator S-150.
Feb 20, 2023

What size generator do I need for a 2000 square foot house? ›

The average family with a 2,000 ft2 home may require up to 30,000 watts hours (30kWh) to power all of their devices, appliances, laundry, air conditioning, and heating units for a day. Around 5000 watts of AC output should simultaneously power the essential appliances in a 2,000 ft2 house.

What is the life expectancy of a whole house generator? ›

Depending on the quality and size of your standby generator, most manufacturers usually predict that a standby generator will remain reliable anywhere from 10,000 – 30,000 running hours (about 25 – 40 years) depending on how well it is maintained.

Which is better Briggs and Stratton or Generac? ›

Price: The main distinction between the two generator brands is the price, with Generac generators costing more than Briggs & Stratton units. Size of the Generator: Generators made by Briggs & Stratton are lighter and easier to transport than those made by Generac.

What is the difference between a Generac 22kW and 24kW? ›

24kW Fuel Economy

At a full load of 24kW, the generator uses 203 cubic feet of natural gas per hour while the 22kW uses 228 cubic feet to produce 22kW. The 20kW would use 204 cubic feet. That's 7 Percent more power using less natural gas than the 22kW, and 14 percent more power than the 20kW on slightly less gas.

What are the top three generators? ›

The 5 Best Whole House Generators of 2023
  • Generac Guardian Wi-Fi Enabled Standby Generator.
  • Briggs & Stratton 12,000-Watt Automatic Air Cooled Standby Generator.
  • Champion 14-kW aXis Home Standby Generator with 200-Amp Whole House Switch.
  • Generac PowerPact 7,500 Watt Standby Generator.
Jun 5, 2023

Which is better for home use inverter or generator? ›

Inverters have advanced technology that allows them to run at a lower noise level than traditional generators. This reduced noise level makes them better suited for use in residential areas, camping, and other off-grid activities where noise pollution is a concern.

Will a 2500 watt generator run an air conditioner? ›

Air conditioners require a significant amount of energy to get started and to keep running. To power the average RV air conditioner, the generator needs to have at least a 2000- 4000-watt capacity.

What size generator do you need for a 3000 square foot house? ›

A 3,000-square-foot house with two central air conditioners, an electric range, and a whirlpool tub might require as much as 25kW to 30kW. A newer option is a "load-management system," a generator that can power everything in your house, just not all at once.

Can a generator be too big for a house? ›

You, however, need to ensure that you choose the right generator size that meets your household needs. If you buy an undersized unit, it will strain to meet your power demands, shortening its lifespan. An oversized unit will result in unnecessary power loss and can damage your appliances.

What size generator do I need to run most of my house? ›

How Big of a Generator Do I Need to Run a House? With a generator rated at 5,000 to 7,500 watts, you can run even the most critical household equipment, including things such as refrigerator, freezer, well pump, and lighting circuits. A 7500-running watt generator can run all these appliances at once.

What size generator do I need to run everything in my house? ›

A 7,500-watt generator is generally a good size, unless you have a very large home or want to run every appliance you have on the generator. It can handle most of your household appliances, although it's a good idea to balance what you run at the same time.

What is the best size generator for my home? ›

What size generator for a house? You can run the most critical household equipment with a generator rated at 5,000 to 7,500 watts. These include things like a refrigerator and freezer and lighting circuits. A generator with around 7500 running watts can run all these appliances at once.

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