Compare Generators Side-by-Side

Generator

Generator

3650 W

105 lbs

10 h

120

120

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

Generac OHV 4-stroke 212

Recoil

Recoil

3 years

3 years

3650 W

4500 W

10 h

CARB, EPA

CARB

840876133811

696471074581

3300

3600

9.3

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

2x Duplex 120V 20A (5-20R) 1x 120V 30A (L5-30R)

60

60

OHV 4-Stroke

OHV 4-stroke

Cast iron sleeve

10

Low oil and overload protection

Low oil and overload protection

Yes

Oil, funnel, tool kit, and battery charging cables

Oil, funnel, tool kit, and wheel kit

3

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.

The Generac GP3600 (#7678) is a 3600-watt gasoline generator built for homeowners and job sites needing reliable backup or portable power. Its 4500-watt peak capacity handles starting surges for tools and appliances, while the 3.7-gallon fuel tank delivers 9.3 hours of runtime at half load. Automatic voltage regulation protects sensitive electronics, and a three-year warranty covers ownership support.