Compare Generators Side-by-Side

Generator

Generator

6875 W

120/240V 60 Hz

120/240

389 cc OHV 4-stroke, cast iron sleeve

300 cc OHV 4-stroke

Recoil

Recoil

3 years

2 years

8350 W

6875 W

EPA

CARB, EPA

840876167014

815683020036

6700

5500

12

15

60

60

OHV 4-stroke, cast iron sleeve

OHV 4-stroke

cast iron sleeve

12

15

Low oil and overload protection

Low oil and overload protection

Recoil

3

The Firman P06701 is a 6700-watt gasoline generator built around a 389cc OHV 4-stroke engine with a cast iron sleeve. This wattage class powers essential home appliances, job site tools, and outdoor event equipment simultaneously. The 8-gallon fuel tank stretches runtime to 12 hours at half load, meaning users refuel once per day under moderate use rather than every few hours. At 74 decibels, the noise level matches a vacuum cleaner, loud enough to require distance from neighbors but typical for this power class. The recoil starting system is mechanically simple and reliable, though it demands physical effort on cold mornings or after storage.

The Cat RP5500 is a 5500-watt gasoline generator built for homeowners, contractors, and outdoor enthusiasts who need reliable backup power without the complexity of larger units. This wattage tier handles most household circuits simultaneously, meaning you can run a refrigerator, well pump, and power tools at the same time, but not your entire home's air conditioning system. The 6875-watt peak capacity gives it the muscle to start high-inrush devices like compressors and sump pumps without stalling. Because the RP5500 runs on gasoline, fuel is available at any gas station, eliminating the supply chain friction of propane or diesel models. The 7.9-gallon tank paired with 15-hour runtime at half load means you refuel roughly once per day under typical use, not every few hours.