Compare Generators Side-by-Side

Generator

Generator

3650 W

124 lbs

10 h

120/240

120

223 cc OHV 4-stroke, cast iron sleeve

193 cc Firman Max-Pro Series OHV 4-Stroke, Cast Iron Sleeve

Recoil, Electric, Remote

Recoil

3 years

3 years

5000 W

3650 W

20 h

10 h

3600 W

Digital Data Center

CARB, EPA, ANSI/PGMA G300-2023

CARB, EPA

850016881328

840876133811

4000

3300

5000

3650

4000

5000

20

10

2x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R)

1x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R)

60

60

223 cc OHV 4-stroke

OHV 4-Stroke

cast iron sleeve

Cast iron sleeve

20

10

Digital Data Center

Low oil and overload protection, CO monitoring

Low oil and overload protection

Wheels and folding handle

Oil, funnel, tool kit, key fob, propane hose, RV adapter, battery, and wheel kit

Oil, funnel, tool kit, and battery charging cables

3

GXS5000RD

The A-iPower GXS5000RD is a 4,000-watt dual-fuel generator built around a 223cc OHV engine that runs on either gasoline or propane. On gasoline, it delivers 5,000 starting watts and 4,000 running watts. On propane, output drops to 4,500 starting and 3,600 running watts. This power level handles most household circuits, power tools, and mid-range job site equipment simultaneously. The dual-fuel design means users can switch between fuels based on availability, cost, or storage preference. A 6.3-gallon tank paired with 20-hour runtime at 25% load reduces refueling frequency during light-duty work. The 68 dBA noise level sits between a normal conversation and a vacuum cleaner, making it acceptable for residential neighborhoods with reasonable distance from neighbors.

The Firman W03381 is a 3300-watt inverter generator built around a 193cc OHV 4-stroke engine with a cast iron sleeve. This wattage puts it in the mid-range portable segment, capable of powering a refrigerator, microwave, and several household circuits simultaneously, or running a single large tool on a job site. The 3650-watt starting capacity handles the inrush demand of compressors and air conditioning units. Because the W03381 runs on gasoline with a 1.8-gallon tank, users will find a 10-hour runtime at 25% load, which translates to roughly 2.5 hours of continuous full-load operation before refueling becomes necessary. The inverter topology and 3% THD output mean sensitive electronics like laptops, phones, and televisions receive stable, clean power without risk of damage. At 58 decibels, this generator operates at a volume comparable to normal conversation, making it suitable for residential neighborhoods and RV parks where noise restrictions apply.