Compare Generators Side-by-Side

Generator

Generator

3800 W

121 lbs

120

120

223 cc Senci OHV 4-stroke

208 cc OHV 4-stroke, cast iron sleeve

Recoil, Electric, Remote

Recoil, Electric

3 years

3 years

3800 W

4500 W

12 h

25 h

3200 W

3300 W

CARB, EPA, ANSI/PGMA G300-2023

CARB, EPA, ANSI/PGMA G300-2023

850016881083

840876136621

3500

3650

3800

4500

12

25

1x Duplex 120V 20A (5-20R), 1x 120V 30A (L5-30R)

1x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R); 1x 120V 50A (14-50R)

60

60

Senci OHV 4-stroke

OHV 4-stroke

12

25

Low oil and overload protection

Recoil, Electric, Remote

3

3

The A-iPower SUA3800iEDP is a 3500-watt dual-fuel inverter generator built for homeowners and outdoor users who need reliable backup power without sacrificing portability. Running on either gasoline or propane, it delivers 3800 peak watts to start larger appliances and tools, then settles to 3500 running watts for sustained operation. This power level handles refrigerators, window air conditioners, power drills, and multiple household circuits simultaneously, making it practical for both emergency outages and job site work. The inverter design means sensitive electronics like laptops, televisions, and phone chargers stay protected from voltage spikes. At 63 dB, the noise level sits between a normal conversation and a vacuum cleaner, so it won't alienate neighbors during daytime use. The dual-fuel flexibility matters most when fuel supply chains break down. If gasoline runs short, propane becomes the backup. With a 2.6-gallon tank and up to 16 hours of runtime on propane at 25% load, users can stretch refueling intervals significantly.

The Firman WH03662OF is a 3,650-watt dual-fuel inverter generator built for both home backup and job site work. On gasoline, it delivers 4,500 starting watts and 3,650 running watts. On propane, output drops to 4,100 starting and 3,300 running watts. This wattage range powers most household appliances, mid-size power tools, and multiple devices simultaneously. The dual-fuel option gives users flexibility during fuel shortages or when propane's longer shelf life matters. Because the WH03662OF runs at 69 dBA, placement within 20 to 30 feet of living spaces remains practical for residential use. The inverter produces less than 3% THD, which protects laptops, TVs, and other sensitive electronics from voltage spikes. A 6-gallon tank delivers 25 hours of runtime at 25% load on gasoline and 19 hours on propane. At 50% load, runtime drops to zero hours, meaning users refuel frequently under moderate-to-heavy demand.