Best Whole House Generator Review & Guide! (2020)

Best Whole House Generator

Here I'm going to talk about the best whole house generator and it gives you power backup when electric power goes off.

It will help you a lot, if your house in an area where power cut off is a normal thing all the time, that time it is your friend which will take responsibility for power supply.

There can be many reasons of power cut off, example:

  • Bad weather
  • Natural disaster

Most of the time these two are the main reason behind power cut off.


There are many bad things happens without power, and we have to face them if don't have the best whole house generator for home. Few bad things examples is here when there is no power:

  • Internet Lost
  • Food Spoils
  • Important services 

This is a very bad situation where we can't do anything for our things if we don't have generator for power backup and the whole house generator is able to power your all the home appliances when there is no power.

In this article I'm going to show everything about the best standby generator. I'm going to show you the best standby generator reviews, where i will show buying guides, pros and cons and the best-selling generator for home.


I guaranteed you after reading this guide you would be able to buy the best generator for your home.


Product name

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Best Whole House Generator

Generac Home Standby Generator 22kW/19.5kW Air Cooled

Best Whole House Generator

Westinghouse WGen9500DF Dual Fuel Portable Generator

Best Whole House Generator

Briggs & Stratton 40336 20kW Standby Generator

Best Whole House Generator

DuroMax XP12000EH Portable Dual Fuel Electric Start Generator

Best Whole House Generator

Generac 22000 Watt 7043 Home Standby Generator

So, below I'm going to show you the best home generators reviews in details with pros and cons, so you can learn everything about them.


1. Generac Home Standby Generator 22kW/19.5kW Air Cooled

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Best Whole House Generator

Generac's this generator can best an awesome solution for your home appliances and it comes with 19,500 watts on natural gas and 22,000 watts with propane.

It is providing you an amazing feature of remote monitoring with the help of this feature you can monitor your generator from your daily use devices, example:

  • Smartphone
  • Tablet
  • Laptop (PC)

And you can easily check all the information.

It can handle the load of your whole house appliances because it has a powerful G-Force pressure-lubricated engine, that work efficiently.

This generator also has a 200 amp NEMA 3 (indoor/ outdoor rated) whole house Smart transfer switch, which is very useful, and the company also providing you a smart user-friendly feature of multilingual LCD display, it helps to monitor generator maintenance intervals and battery status so you can run it always in best condition.

It is also able to run your high wattage appliances, few appliances is below:

  • Air conditioners
  • Electric Dryers
  • Electric stoves 

And, also it can power your small devices and it is Engineered and Built in the USA and comes with five years limited warranty.

Pros and Cons


  • It has an amazing feature quick test and self test, where in the starting for testing 5-12 minutes it runs on low RPM for making generator quiet and consume less fuel.
  • This generator gives you less than 5% THD high quality power, so feel free to power your small and sensitive devices.
  • It comes with Tough, Durable All-Aluminum Enclosures RhinoCoat powder-coated finish, which helps to keep it safe from rust in any weather.
  • Company also providing you multilingual LCD display, with the help of this you can easily monitor this for excellent performance.


  • One of the to con of this generator is you have to maintain it on regular interval, if you won't do it will not work well, this is the main issue people face. 
  • Another issue you are going to face to the wiring time because they are giving very less space for wiring that makes it tough for people.

2. Westinghouse WGen9500DF Dual Fuel Portable Generator

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Best Whole House Generator

Westinghouse WGen9500DF generator is a dual fuel generator and a powerful backup for your home and it comes with 12500 starting watts and 9500 running watts.

This powerful generator has ability to power all the home appliances including sensitive devices too and also you can power heavy appliances example:

  • Refrigerator
  • Sump pump
  • Window AC
  • Freezer
  • Lighting circuits

Best thing about this generator is that it is a dual fuel generator means you can run it with propane and gasoline and it also giving you long run time so can power your appliances for long time in emergencies and can enjoy your camping.

If you are not giving it heavy load it can provide you 17 hours long urn time, isn't it awesome? 🙂

Company also designed it with all the important outlets, so you can use it properly, given feature example:

  • Two GFCI 120V 5–20R Standard Household Receptacle
  • One Transfer Switch Ready 120V L14-30R
  • One RV Ready 120/240V 14–50R

Also, they are providing rubber cover for all the outlets.

When it comes to comfort, so they are providing a remote key fob, which will help you to control your generator even you are inside the house.

It is very easy to use and also comes with complete user manual that is going to help you a lot. One thing you have to consider it comes with large size and if you will give it heavy load that it can a bit noisy, but less than compare to other generator.

This is also the best-selling generator on Amazon and if you don't want to hear noise then place it on a comfortable place.

Pros and Cons


  • It has dual fuel feature that gives you flexibility, so you can run it on propane or gasoline.
  • Very easy to use comes with fully user manual even if you are beginner you can run it easily. 
  • It comes with powerful 12500 starting watts which is able to power your heavy home appliances.
  • According to the price this is impressive with all the qualities it has.


  • The one thing you have to keep in mind is, it is heavy so, you have to place it on a comfortable place.

3. Briggs & Stratton 40336 20kW Standby Generator

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Best Whole House Generator

Briggs's company's this generator is a very powerful and it can be the best power backup option for you, whether you are using a large appliance or a small appliance.

If we talk about its engine so it comes with a powerful rugged 35HP engine and it's a heavy-duty engine which can easily power your large appliances.

This generator has a bit of noise issue but overall it is a good option for home power backup.

If you are not a beginner, you can install by yourself but it you don't have nay knowledge you can call electrician.

They also providing you some extra things for winter so you can benefit it example:

  • A maintenance kit
  • handy oil 
  • filters 


It also has one special feature you can control it by your computer or laptop.

Pros and Cons


  • It is very powerful and best option for your home backup.
  • You can place it very near to your home there would be no issue.
  • It also has overload protection and Automatic Voltage Regulation feature.


  • Like I said above it has a bit of noise issue.

4. DuroMax XP12000EH Portable Dual Fuel Electric Start Generator

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Best Whole House Generator

Duromax this generator has special dual fuel feature, that gives you flexibility or you can choose from which source you want to run your generator.


There are many generators available in the market this time, and this is also one of the best generator so far, when it comes to its performance.

It is a very powerful generator and it comes with 12000 starting watts and 9500 running watts and in this power you can easily power your all the home appliances whether it is small or big appliances, you can power refrigerator, washing machine and air conditioner easily.

The runtime by this generator is, if you run it on propane, it gives you more than 7 hours run time and at 50% load with gasoline it gives you 8 hours run time.

Maybe you can face some noise issue with this generator because it is a heavy-duty and powerful generator, it would be good if you keep it out of your house on its right place and also you can use it in your RV.


If you want a heavy-duty generator then, it would be an awesome generator for you, it is very powerful that let you down when it comes to power backup.

Pros and Cons


  • It is a dual fuel generator that gives you flexibility to use it.
  • Company designed it with strong and safe body.
  • It is very powerful and heavy duty generator.
  • As compared to the size and power it is not very loud.


  • It is very heavy not easy to move but it has handle and wheels that helps you to move it whwer you want to place it.

5. Generac 22000 Watt 7043 Home Standby Generator

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Best Whole House Generator

If you want a generator that can handle your household heavy load then it is the best generator you can go with it will never disappoint you when it comes to power backup.

One of the best specialities in this generator is it is one of the largest air-cooled generator.

It can handle your all the appliances load whether they are heavy appliances or small (sensitive) appliances example: Air-conditioner, refrigerator etc. it comes with 22,000 watts and it is enough for household.

The best thing is you can use it indoor and outdoor both of side because it comes with 200 Amp NEMA3 Transfer Switch and it works nice when there is no electricity. 

You all the nowadays technology always comes first and this whole house generator also on the same path it comes with in-built Wi-Fi that help you to control it from your phone or laptop or you can download and use and individual app for monitor everything about it.

The power it provides you is less than 5% harmonic distortion, so it is safe you can power your sensitive devices without any fear.

Pros and Cons


  • It can handle heavy loads easily, so your home small or large it is good for power backup.
  • You don't need to worry about it, it comes with self test mode that ensure it that everything is fine with it.
  • This generator provides you less than 5% harmonic distortion, so power your small and sensitive devices without any risk and fear.
  • It will always give you good service whether, weather is good or bad. 


  • One thing you have to consider if you want to use it for long years then maintain it time to time and take professional help for check it.

Which Whole House Generator You Should Get - Portable vs Standby

I would say it totally depends on you but there are many factors available which tells you, that if you buy a at least 7500 watts portable generator, it is also worth, why?

Below I'm going to show you.

- Portable Generator

If you compare portable generator with standby generator so portable generator is less expensive and need less maintenance and even if you are a beginner you cane easily use it, there is no need of professionals for installation.

There are many other awesome features portable generator has, many model comes with parallel feature with this feature you can connect other portable generator for more heavy loads.

Also, there are many dual fuel models available, which gives you flexibility,

- Standby Generator

If you go with standby generator so there are many things you have to consider:

  • Expensive
  • Professional installation
  • Certified electrician


These things increase its cost more also you have to check your town guidelines for these generators and the other thing is if you use it regular 24-48 hours continues, then it needs service from professionals as you know it needs regular maintenance, It is not good if you are going to use it for long term.

Benefits of portable generators

  • Easier to set up 
  • Do not require any advanced knowledge
  • Do not require government permits
  • No requirement of professional maintenance

With all these advantages there are on issue too, it can be quite loud but when we look on benefits noise wouldn't be big issue because there are many other things to be concerned when there are hurricanes or nay other natural disaster.

Point to be notice for safety: If you connect your portable generator to your home without transfer switch it can be very harmful for you, it can cause a serious electric shock.

High Watts Portable Generator Can Run Your House

You all already know or you can realize, when there is power outage are you run your all the appliances together or only the important ones like refrigerator, lights. If you use your power backup like then there are high chances you would be happy with the results of portable generator.


If you really want a heavy-duty generator then there are many powerful portable generators available in the market as and example you can see these two generators:

Both of these generators can easily handle your home backup load easily but if you need more power then there are many other models available which has 15000 watts backup you can go with them also.

Moveable Portable generator

This is also one of the amazing difference between portable and standby generators, you get freedom with portable generator you can move it or place it where you want but with the standby you need to choose a fix place.


With portable generator you can choose a place where you want use it and when you need it you can move it out from the store room or other hardware place.

Some Suitable Models For Home

  1. Westinghouse WGen12000 Ultra Duty Portable Generator
  2. DuroMax XP12000EH Portable Dual Fuel Electric Start Generator
  3. A-iPower SUA12000E 12,000-Watt Gasoline Powered Generator
  4. Generac 5734 GP15000E Gas Powered Portable Generator

These are the top four generators for home, which can handle your home appliances whether they are heavy or sensitive, feel free for power backup.

Why Should You Purchase the Best Whole House Generator?

If you really want to power your all the home appliances together then you should try to avoid portable generators and go for the whole house generator although whole house generator also has its pros and cons but for all house appliances backup its is also one of the best option.


If you are going to buy it, maybe you know you have to complete its installation by professionals and it works quite silent, you have to choose a place where you want to fix it and just connect it once with direct electricity board, after that it will work automatically when power goes off.

The source of its running is natural gas (Fuel), it works really nice with it once you connect it with natural gas (fuel).

Power your all home appliances also depends on unit by unit, for power your all home appliances together you need a unit which is generating 20 kilowatts, it provides you as much power that you don't need to off your air conditioner and it also depends on your house size and power requirements.

As an example:

A 5000-watt portable unit - Enough for RV


If you go with whole house generator there would be no issue how much power do you need or how big is your house size, everything will run smoothly if you are using the whole house generator.

There would be no issue for you about power backup if you are using a whole house generator, only thing you have to consider the more power you need the more fuel it requires but when it comes to back up it will not disappoint you. 

Below I'm going to tell you some situations you will face without electricity:

No entertainment - No television, Computers, Mobile phone

No Lights - You will face darkness with lights

Summer Heat - No Fan, Air conditioner

Food - No more home cooked food

There are many other bad things you will face if you don't have power back up option, and whole house generator and portable generator would be nice option for you.

Things You Should Know Before Buying A Whole House Generator

Product Quality

There is one thing is true if you want a good generator or want a good quality product then you have to spend a good amount also and consider fuel also, according to the running time and power usage it will consume fuel, so also add fuel costs before buying a generator.

While buying a generator you also have to think about fuel, that the fuel you need for your generator is easily available near you or not.


When it comes to noise, so there are many portable generator models available, which can run continuously on 80 decibels but if you are looking for a generator for your home only then a whole house generator can be more efficient for you.

You have to inspect about every aspect of generator while purchasing read about all the feature take some experts advise, see the ratings, read the reviews which we're also providing, it will clear your thinking pattern and help you to select best one for you.


You can get many models with very less noise level like portable inverter generator but the thing is you have place them almost 25 feet (7.62 meters) away, the more near you will place them the more sound you about to hear.


If you are looking for noiseless power backups then you have one option left is solar power but there is also conditions available, solar systems can't give you that power, which you can get from standby generators and portable generators.

Add Cost

You have to add more cost with standby generator, below I'm going to show some examples:

  • You need a licensed electrician for electrical work.
  • You need labor for moving it because it is heavy.
  • Plumber for adding unit to the fuel source.

So these are the few examples to give you an idea how you can add the extra cost before buying a generator, it will ensure you, which generator you can buy.

Frequently Ask Questions

Q. How big of a generator do I need to run a house?

5000 watts to 7500 watts generator has that ability which can run your home appliances easily. They can run big appliances like refrigerator, microwave and air conditioner. 

If you want to run all these appliances feel free to buy a 7500 watts generator and run whatever you want to run with it.

Q. Is a home standby generator a good investment?

There are many examples available that show you it is a good investment below i going to show some of them:

  • Keep your fresh food in refrigerator.
  • If you work from home

These two are real example and there are many other important works available that can't be happened without power and you are going to loss your time and efforts.

Q. Will a 10000 watt generator run a house?

Yes! It can handle all the home appliances load even they are big or small appliances, a 10,000 watts generator is capable to provide power backup for a house.

Westinghouse WGen9500DF Dual Fuel Portable Generator you can also choose this one for you.

Q: Which backup generator is best for a home?

As we (our team) have done the research and fine two top rated and best-selling generators for you, which is capable to handle home load and you can run big and small appliances both of with these generators.

Here is the to two and best-selling generators:

  • Westinghouse WGen12000 Ultra Duty Portable Generator
  • DuroMax XP12000EH Portable Dual Fuel Electric Start Generator 
  • Wrap up

    Thank you for reading this article (best whole house generator) I hope his article will help you I and my team tried very best to show you everything about generator that can help you in some ways.

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