Compare Generators Side-by-Side

Generator

Generator

2500 W

90 lbs

10 h

9 h

120

120V 60 Hz

98 cc Ducar OHV 4-stroke engine

171 cc Firman Max-Pro Series OHV 4-stroke, cast iron sleeve

Recoil

Recoil, Electric

3 years

3 years

2500 W

3300 W

10 h

9 h

CARB, EPA

CARB, EPA

690781007918

840876130827

2200

3000

8

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

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

60

60

Ducar OHV 4-stroke

OHV 4-stroke

Cast iron sleeve

10

9

Low oil and overload protection

Low oil and overload protection

Oil, funnel, and tool kit

Oil, funnel, tool kit, battery charger, battery charging cables, and battery

3

The Cummins Onan P2500i is a 2200-watt inverter generator built for users who need portable power without sacrificing runtime or noise control. At 48 pounds and measuring 19.8 by 10.5 by 18.3 inches, this unit bridges the gap between true portability and practical capacity. It can run a microwave, small refrigerator, or circular saw continuously, making it suitable for camping trips, job sites, tailgating, and emergency backup. The 1-gallon fuel tank delivers 10 hours at 25 percent load and 8 hours at 50 percent load, meaning most users refuel once per day rather than multiple times. The inverter topology produces clean power with less than 3 percent THD, which protects laptops, phone chargers, and sensitive electronics from voltage spikes. Cummins backs this unit with a 3-year warranty, longer than the 2.4-year average for comparable inverter generators. The 52 dBA noise level sits between a normal conversation and light traffic, allowing operation in noise-restricted campgrounds and residential neighborhoods without drawing complaints.

The Firman W03082 is a 3000-watt inverter generator built around a 171cc OHV 4-stroke engine. At this wattage, it can power most household appliances simultaneously: a refrigerator (600W), microwave (1000W), and several lights and chargers without strain. The 3300-watt peak handles motor startup surges for tools like circular saws or air compressors. Because it runs on gasoline with a 1.8-gallon tank, refueling happens frequently at higher loads, but the 9-hour runtime at 25% load means light-duty camping or backup power runs through a full day without interruption. The inverter topology keeps total harmonic distortion below 3%, which means laptops, phones, and sensitive medical equipment charge safely without risk of damage from dirty power.