Top rated natural gas generators

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AI-generated summary · updated July 28, 2026 · verify details before purchase.

1. 

   1 Best overall Generac

   Generac Guardian 22kW Portable Generator (Model 7043)

   ★★★★★4.7/5 $6,835.95

   A powerful 22kW unit that runs on natural gas or propane, offering reliable backup for whole-home use.

   • High power output
   • Quiet operation
   • Automatic transfer switch ready

   • Heavy weight
   • Higher price

   View on Amazon manufacturer site
2. 

   2 Best budget pick Briggs & Stratton

   Briggs & Stratton 10,000W Natural Gas Generator (Model 10000)

   ★★★★☆4.4/5 $1,399.00 Only 2 left

   Offers 10kW of power at an affordable price, with a straightforward installation process.

   • Good value
   • Easy installation
   • Automatic voltage regulation

   • Larger footprint

   View on Amazon manufacturer site
3. 

   3 Best portable option Honda

   Honda EM5000S Portable Natural Gas Generator

   ★★★★★4.6/5 $2,799.00 Only 14 left

   A 5kW inverter generator that runs on natural gas, delivering clean power for sensitive electronics.

   • Ultra-quiet
   • Fuel-efficient
   • Lightweight for its class

   • Premium price

   View on Amazon manufacturer site
4. 

   4 Best dual-fuel flexibility Champion Power Equipment

   Champion 14,000W Dual-Fuel Generator (Model 100302)

   ★★★★☆4.3/5 $718.75

   Runs on natural gas, propane, or gasoline, providing up to 14kW for whole-home coverage.

   • Fuel flexibility
   • High output
   • Electric start

   • Heavier
   • Slightly louder

   View on Amazon manufacturer site
5. 

   5 Best for whole-home backup Kohler

   Kohler 20RESCL-200SE Standby Generator

   ★★★★☆4.5/5 $6,649.00 Only 4 left

   A 20kW natural gas generator designed for continuous power during prolonged outages.

   • Large capacity
   • Quiet-Tech enclosure
   • Robust warranty

   • Installation cost

   View on Amazon manufacturer site
6. 

   6 Best for continuous use Cummins

   Cummins PowerGen 6500 Natural Gas Generator (Model PowerGen 6500)

   ★★★★☆4.5/5 $1,600-$1,800 Currently unavailable

   A 6.5kW standby generator built for long-run operation, ideal for home and small business backup.

   • Durable engine
   • Low fuel consumption
   • Compact footprint

   • Noisy at full load

   View on Amazon manufacturer site

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