Best Whole House Generators

Best Whole House Generators

Top-Rated & Best-Selling Whole House Generators

By  | Generator Product Expert
By  | Generator Product Expert

A whole house generator will power your entire home like nothing ever happened.

We've made picking one simple by compiling these lists of the best-selling, top-rated and expert-recommended whole-home generators.

Take a look at the tabs below to get started. Or, take a look at our Whole-Home Generator Buyer's Guide first.

Best Selling
Top Rated
Recommended

Top 10 Selling Whole House Generators

Top 10 Rated Whole House Generators

Recommended Whole House Generators

Top Small Whole House Standby Generators
Recommended
Generac Protector® QS Series 27kW Automatic Standby Generator (Premium-Grade)(120/240V Single-Phase)
Generac Protector® QS Series 27kW Automat...
$10,797.00
4.7 out of 54.7 out of 54.7 out of 54.7 out of 54.7 out of 5
(7)
The Generac 27KW QS is a great 25kW liquid-cooled generator. This model sells the best for a few reasons: It is powered by a Generac 2.4L 4-Cylinder Liquid-Cooled Engine. It lets you power all of your high-wattage household appliances & 2 AC...
Read Jared's Review
Recommended
Cummins RS30 Quiet Connect™ Series 30kW Standby Power Generator (120/240V Single-Phase)
Cummins RS30 Quiet Connect™ Series 30kW...
$11,385.00
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5
(3)
The Cummins RS30 is a durable, 30kW liquid-cooled generator. This model sells the best for a few reasons: Powered By Cummins, this 2.4L turbocharged liquid-cooled engine operates at 1800 RPM, which provides reliability and fuel efficiency. I...
Read Jared's Review
Recommended
Kohler 24RCL- 24kW Emergency Standby Power Generator (120/240V Single-Phase)
Kohler 24RCL- 24kW Emergency Standby Power Ge...
$10,532.00
4.5 out of 54.5 out of 54.5 out of 54.5 out of 54.5 out of 5
(6)
The Kohler 24kW liquid-cooled generator includes all of the same great features found in the smaller 20 kW version. Plus, it features a more top-of-the-line Kohler engine capable of producing an extra 4 kW of electricity....
Read Jared's Review
Top Large Whole House Generators
Recommended
Cummins RS36 Quiet Connect™ Series 36kW Standby Power Generator (120/240V Single-Phase)
Cummins RS36 Quiet Connect™ Series 36kW...
$12,215.00
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5
(1)
The Cummins RS36 is a great 36kW liquid-cooled generator This model sells the best for a few reasons: Its Cummins 2.4L Turbocharged Liquid-Cooled Engine and the 1800 RPM design provides fuel efficient and quiet operation. It has a corrosion-...
Read Jared's Review
Recommended
Kohler 38RCLB - 38kW Emergency Standby Power Generator (120/240V Single-Phase)
Kohler 38RCLB - 38kW Emergency Standby Power ...
$13,395.00
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5
(1)
This model has some very attractive features. It's powered by a Kohler 2.2 L Turbocharged liquid-cooled engine. The RDC2 Digital Controller controls both the generator & RXT series transfer switch. It also comes with a premium 5-Year/2000 hour limite...
Read Jared's Review
Recommended
Generac Protector® QS Series 48kW Automatic Standby Generator (Premium-Grade)(120/240V Single-Phase)
Generac Protector® QS Series 48kW Automat...
$15,997.00
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5
(1)
The Generac Protector 48kW generator is considered the "money is no object" whole-house generator. Yes, it's expensive. But, it's the ultimate whole-house solution for the following reasons. 1. The Generac QuietSource replaces all 200-amps of ele...
Read Jared's Review