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ReaLoadREVIEWS
Tested Combustion Generator Catalog (99 of 102 Benchmark Models)

Portable, Inverter & Standby Combustion Generator Archive

All wattage ratings dynamically recalculate for your selected fuel (gasoline) and elevation (0 ft).

Showing 99 of 102 combustion models
Tri-Fuel Inverter9.0 / 10
Westinghouse iGen12000TFc
Enclosed Inverter2.1% THD
Westinghouse·457cc 4-Stroke OHV Copper-Wound Alternator

Westinghouse iGen12000TFc 12,000W Peak / 9,500W Running Enclosed Tri-Fuel Inverter

Best For: Large 4-ton to 5-ton central A/C homes needing maximum 9,500W+ enclosed tri-fuel inverter power.

Running / Surge9,500W / 12,000W
Noise @ 23ft64 dBA (Quiet)
Fuel & RuntimeGas/LPG/NG · 16h
Home Backup OutletNEMA 14-50R
Power Purity<2.1% THD · Bonded
Weight & Mobility191 lbs · Wheel Kit
Lowest Current Street Price
$1,849.00
$0.19 / Running Watt
Wiring & ManualsView Full Review ->
Dual-Fuel Inverter8.9 / 10
Honda EU7000iS
Enclosed Inverter1.2% THD
Honda·Honda GX390 EFI Closed-Loop Fuel-Injected OHV

Honda EU7000iS 7,000W Peak / 5,500W Running Fuel-Injected Ultra-Quiet Inverter

Best For: Ultra-reliable fuel-injected quiet backup with whisper-quiet 52 dBA acoustic insulation.

Running / Surge5,500W / 7,000W
Noise @ 23ft52 dBA (Quiet)
Fuel & RuntimeGas/LPG · 18h
Home Backup OutletNEMA L14-30R
Power Purity<1.2% THD · Floating
Weight & Mobility261 lbs · Wheel Kit
Lowest Current Street Price
$5,199.00
$0.95 / Running Watt
Wiring & ManualsView Full Review ->
Dual-Fuel Inverter8.9 / 10
Generac Guardian 26kW (7291)
Enclosed Inverter3.2% THD
Generac·Generac G-Force 1000 Series V-Twin OHV Engine

Generac Guardian 26kW High-Output Air-Cooled Home Standby Generator

Best For: Reliable 120V/240V split-phase home emergency backup with enclosed inverter protection (Guardian 26kW (7291)).

Running / Surge5,000W / 6,250W
Noise @ 23ft58 dBA (Quiet)
Fuel & RuntimeGas/LPG · 999h
Home Backup OutletHardwired Terminals
Power Purity<3.2% THD · Floating
Weight & Mobility535 lbs · Wheel Kit
Lowest Current Street Price
$6,299.00
$1.26 / Running Watt
Wiring & ManualsView Full Review ->
Dual-Fuel Inverter8.9 / 10
Honda EU2200i
Enclosed Inverter1.4% THD
Honda·121cc 4-Stroke OHV Copper-Wound Alternator

Honda EU2200i 2,200W Peak / 1,800W Running Whisper-Quiet Companion Inverter

Best For: Reliable 120V/240V split-phase home emergency backup with enclosed inverter protection (EU2200i).

Running / Surge1,800W / 2,200W
Noise @ 23ft48 dBA (Quiet)
Fuel & RuntimeGas/LPG · 8.1h
Home Backup OutletNEMA L14-30R
Power Purity<1.4% THD · Floating
Weight & Mobility47.4 lbs · Wheel Kit
Lowest Current Street Price
$1,199.00
$0.67 / Running Watt
Wiring & ManualsView Full Review ->
Tri-Fuel Inverter8.8 / 10
GENMAX GM10500XiT
Open-Frame Inverter2.4% THD
GENMAX·312cc 4-Stroke OHV Air-Cooled 180F/P-GS Engine

GENMAX GM10500XiT 10,500W Peak / 7,800W Running Open-Frame Tri-Fuel Inverter

Best For: Value-focused whole-home 50-amp interlock backup with factory Floating Neutral and <3% pure sine wave.

Running / Surge7,800W / 10,500W
Noise @ 23ft74 dBA (Open-Frame)
Fuel & RuntimeGas/LPG/NG · 14h
Home Backup OutletNEMA 14-50R
Power Purity<2.4% THD · Floating
Weight & Mobility123 lbs · Wheel Kit
Lowest Current Street Price
$1,549.00
$0.20 / Running Watt
Wiring & ManualsView Full Review ->
Tri-Fuel Inverter8.8 / 10
DuroMax XP11000iHT
Enclosed Inverter1.9% THD
DuroMax·459cc 4-Stroke OHV 100% Copper Winding

DuroMax XP11000iHT 11,000W Peak / 9,000W Running Enclosed Tri-Fuel Inverter

Best For: Reliable 120V/240V split-phase home emergency backup with enclosed inverter protection (XP11000iHT).

Running / Surge9,000W / 11,000W
Noise @ 23ft61 dBA (Quiet)
Fuel & RuntimeGas/LPG/NG · 17h
Home Backup OutletNEMA 14-50R
Power Purity<1.9% THD · Bonded
Weight & Mobility239 lbs · Wheel Kit
Lowest Current Street Price
$2,499.00
$0.28 / Running Watt
Wiring & ManualsView Full Review ->
Tri-Fuel Inverter8.8 / 10
Champion 201176 (9000W Tri-Fuel)
Open-Frame Inverter2.6% THD
Champion·420cc 4-Stroke OHV Champion Tri-Fuel

Champion 201176 9,000W Peak / 7,250W Running Open-Frame Tri-Fuel Inverter

Best For: Reliable 120V/240V split-phase home emergency backup with open-frame inverter protection (201176 (9000W Tri-Fuel)).

Running / Surge7,250W / 9,000W
Noise @ 23ft64 dBA (Quiet)
Fuel & RuntimeGas/LPG/NG · 14h
Home Backup OutletNEMA 14-50R
Power Purity<2.6% THD · Bonded
Weight & Mobility165 lbs · Wheel Kit
Lowest Current Street Price
$1,349.00
$0.19 / Running Watt
Wiring & ManualsView Full Review ->
Dual-Fuel Inverter8.6 / 10
Briggs & Stratton PowerProtect 22kW
Enclosed Inverter3% THD
Briggs & Stratton·Commercial Vanguard 993cc V-Twin Engine

Briggs & Stratton PowerProtect 22kW NGMax Home Standby Generator

Best For: Reliable 120V/240V split-phase home emergency backup with enclosed inverter protection (PowerProtect 22kW).

Running / Surge5,000W / 6,250W
Noise @ 23ft64 dBA (Quiet)
Fuel & RuntimeGas/LPG · 999h
Home Backup OutletHardwired Terminals
Power Purity<3% THD · Floating
Weight & Mobility465 lbs · Wheel Kit
Lowest Current Street Price
$5,699.00
$1.14 / Running Watt
Wiring & ManualsView Full Review ->
Dual-Fuel Inverter8.6 / 10
Honda EB10000
Open-Frame Inverter3% THD
Honda·Honda GX630 Commercial V-Twin 4-Stroke Engine

Honda EB10000 10,000W Commercial V-Twin CycloConverter Generator

Best For: Reliable 120V/240V split-phase home emergency backup with open-frame inverter protection (EB10000).

Running / Surge9,000W / 10,000W
Noise @ 23ft71 dBA (Open-Frame)
Fuel & RuntimeGas/LPG · 12h
Home Backup OutletNEMA 14-50R
Power Purity<3% THD · Bonded
Weight & Mobility403 lbs · Wheel Kit
Lowest Current Street Price
$5,499.00
$0.61 / Running Watt
Wiring & ManualsView Full Review ->
Dual-Fuel Inverter8.6 / 10
Honda EU2200i Companion
Enclosed Inverter1.5% THD
Honda·Honda GXR120 Commercial OHC 4-Stroke Engine

Honda EU2200i Companion 2,200W 30A RV-Ready Portable Inverter Generator

Best For: Reliable 120V/240V split-phase home emergency backup with enclosed inverter protection (EU2200i Companion).

Running / Surge1,800W / 2,200W
Noise @ 23ft48 dBA (Quiet)
Fuel & RuntimeGas/LPG · 8.1h
Home Backup OutletNEMA L5-30R
Power Purity<1.5% THD · Floating
Weight & Mobility46.5 lbs · Wheel Kit
Lowest Current Street Price
$1,299.00
$0.72 / Running Watt
Wiring & ManualsView Full Review ->
Dual-Fuel Inverter8.6 / 10
Kohler 20RCA
Enclosed Inverter2.5% THD
Kohler·Kohler Command PRO 999cc V-Twin OHV Engine

Kohler 20RCA 20kW Composite Enclosed Home Standby Generator

Best For: Reliable 120V/240V split-phase home emergency backup with enclosed inverter protection (20RCA).

Running / Surge5,000W / 6,250W
Noise @ 23ft64 dBA (Quiet)
Fuel & RuntimeGas/LPG · 999h
Home Backup OutletHardwired Terminals
Power Purity<2.5% THD · Floating
Weight & Mobility505 lbs · Wheel Kit
Lowest Current Street Price
$5,299.00
$1.06 / Running Watt
Wiring & ManualsView Full Review ->
Dual-Fuel Inverter8.5 / 10
Cummins Onan QG 4000
Enclosed Inverter3% THD
Cummins·Cummins Onan 304cc 4-Stroke OHV Engine

Cummins Onan QG 4000 4,000W Commercial Gasoline RV Generator

Best For: Reliable 120V/240V split-phase home emergency backup with enclosed inverter protection (Onan QG 4000).

Running / Surge4,000W / 4,000W
Noise @ 23ft66 dBA (Open-Frame)
Fuel & RuntimeGas/LPG · 999h
Home Backup OutletHardwired Junction
Power Purity<3% THD · Floating
Weight & Mobility178 lbs · Wheel Kit
Lowest Current Street Price
$4,299.00
$1.07 / Running Watt
Wiring & ManualsView Full Review ->
Dual-Fuel Inverter8.5 / 10
Cummins RS20A
Enclosed Inverter2.6% THD
Cummins·Cummins 999cc Commercial V-Twin Engine

Cummins QuietConnect RS20A 20kW Cold-Weather Standby Generator

Best For: Reliable 120V/240V split-phase home emergency backup with enclosed inverter protection (RS20A).

Running / Surge5,000W / 6,250W
Noise @ 23ft65 dBA (Quiet)
Fuel & RuntimeGas/LPG · 999h
Home Backup OutletHardwired Terminals
Power Purity<2.6% THD · Floating
Weight & Mobility540 lbs · Wheel Kit
Lowest Current Street Price
$5,199.00
$1.04 / Running Watt
Wiring & ManualsView Full Review ->
Dual-Fuel Inverter8.5 / 10
Generac Guardian 14kW (7224)
Enclosed Inverter3.5% THD
Generac·Generac G-Force 800 Series V-Twin OHV Engine

Generac Guardian 14kW Air-Cooled Standby with 100A Transfer Switch

Best For: Reliable 120V/240V split-phase home emergency backup with enclosed inverter protection (Guardian 14kW (7224)).

Running / Surge5,000W / 6,250W
Noise @ 23ft57 dBA (Quiet)
Fuel & RuntimeGas/LPG · 999h
Home Backup OutletHardwired Terminals
Power Purity<3.5% THD · Floating
Weight & Mobility385 lbs · Wheel Kit
Lowest Current Street Price
$4,299.00
$0.86 / Running Watt
Wiring & ManualsView Full Review ->
Dual-Fuel Inverter8.5 / 10
Kohler 14RESA
Enclosed Inverter2.8% THD
Kohler·Kohler Command PRO Commercial V-Twin Engine

Kohler 14RESA 14kW Air-Cooled Standby Generator with PowerBoost

Best For: Reliable 120V/240V split-phase home emergency backup with enclosed inverter protection (14RESA).

Running / Surge5,000W / 6,250W
Noise @ 23ft63 dBA (Quiet)
Fuel & RuntimeGas/LPG · 999h
Home Backup OutletHardwired Terminals
Power Purity<2.8% THD · Floating
Weight & Mobility410 lbs · Wheel Kit
Lowest Current Street Price
$4,699.00
$0.94 / Running Watt
Wiring & ManualsView Full Review ->
Dual-Fuel Inverter8.4 / 10
Cummins RS13A
Enclosed Inverter2.9% THD
Cummins·Cummins 653cc V-Twin 4-Stroke Engine

Cummins QuietConnect RS13A 13kW Compact Residential Standby Generator

Best For: Reliable 120V/240V split-phase home emergency backup with enclosed inverter protection (RS13A).

Running / Surge5,000W / 6,250W
Noise @ 23ft62 dBA (Quiet)
Fuel & RuntimeGas/LPG · 999h
Home Backup OutletHardwired Terminals
Power Purity<2.9% THD · Floating
Weight & Mobility440 lbs · Wheel Kit
Lowest Current Street Price
$3,999.00
$0.80 / Running Watt
Wiring & ManualsView Full Review ->
Tri-Fuel Inverter8.4 / 10
Genmax GM11000iETC
Enclosed Inverter2.2% THD
Genmax·458cc 4-Stroke OHV Engine

Genmax GM11000iETC 11,000W Peak Tri-Fuel Enclosed Inverter with CO Detect

Best For: Reliable 120V/240V split-phase home emergency backup with enclosed inverter protection (GM11000iETC).

Running / Surge9,000W / 11,000W
Noise @ 23ft62 dBA (Quiet)
Fuel & RuntimeGas/LPG/NG · 15h
Home Backup OutletNEMA 14-50R
Power Purity<2.2% THD · Floating
Weight & Mobility215 lbs · Wheel Kit
Lowest Current Street Price
$2,199.00
$0.24 / Running Watt
Wiring & ManualsView Full Review ->
Tri-Fuel Inverter8.4 / 10
Genmax GM12000iETC
Enclosed Inverter2.3% THD
Genmax·500cc 4-Stroke OHV Engine

Genmax GM12000iETC 12,000W Peak Tri-Fuel Enclosed Inverter with CO Sensor

Best For: Reliable 120V/240V split-phase home emergency backup with enclosed inverter protection (GM12000iETC).

Running / Surge10,000W / 12,000W
Noise @ 23ft63 dBA (Quiet)
Fuel & RuntimeGas/LPG/NG · 15.5h
Home Backup OutletNEMA 14-50R
Power Purity<2.3% THD · Floating
Weight & Mobility235 lbs · Wheel Kit
Lowest Current Street Price
$2,399.00
$0.24 / Running Watt
Wiring & ManualsView Full Review ->
Dual-Fuel Inverter8.4 / 10
Honda EG4000
Open-Frame Inverter4.5% THD
Honda·Honda GX270 Commercial OHV 4-Stroke Engine

Honda EG4000 4,000W Commercial DAVR Portable Generator

Best For: Reliable 120V/240V split-phase home emergency backup with open-frame inverter protection (EG4000).

Running / Surge3,500W / 4,000W
Noise @ 23ft67 dBA (Open-Frame)
Fuel & RuntimeGas/LPG · 16h
Home Backup OutletNEMA L14-30R
Power Purity<4.5% THD · Bonded
Weight & Mobility150 lbs · Wheel Kit
Lowest Current Street Price
$1,699.00
$0.49 / Running Watt
Wiring & ManualsView Full Review ->
Dual-Fuel Inverter8.3 / 10
Briggs & Stratton PowerProtect 13kW
Enclosed Inverter3.2% THD
Briggs & Stratton·Commercial Vanguard 627cc V-Twin Engine

Briggs & Stratton PowerProtect 13kW Compact Footprint Standby Generator

Best For: Reliable 120V/240V split-phase home emergency backup with enclosed inverter protection (PowerProtect 13kW).

Running / Surge5,000W / 6,250W
Noise @ 23ft63 dBA (Quiet)
Fuel & RuntimeGas/LPG · 999h
Home Backup OutletHardwired Terminals
Power Purity<3.2% THD · Floating
Weight & Mobility365 lbs · Wheel Kit
Lowest Current Street Price
$3,899.00
$0.78 / Running Watt
Wiring & ManualsView Full Review ->