Compare Generators Side-by-Side

Generator

Generator

10000 W

350 lbs

12 h

120/240

120/240

439 cc OHV 4-stroke.

670 cc Rato OHV V-Twin

Recoil, Electric

Electric

3 years

2 years

10000 W

15000 W

5500 W

9050 W

CARB, EPA, ANSI/PGMA G300-2023

CARB, EPA

840876180723

815683023891

8000

12000

5500

9050

12

11.7

60

60

439 cc OHV 4-stroke

670 cc Rato OHV V-Twin

Cast iron sleeve

12

11.7

Low oil and overload protection.

Low oil and overload protection

Yes

Oil, funnel, tool kit, natural gas hose with NPT adapter, propane hose, battery, and wheel kit.

Oil, funnel, tool kit, battery charger, battery, and wheel kit

3

The Firman T08072 is an 8,000-watt tri-fuel generator built for users who need flexibility across fuel sources and sustained power output. Running on gasoline, propane, or natural gas, this unit delivers 10,000 peak watts on startup, enough to handle simultaneous demands like air compressors, power tools, and household appliances. The tri-fuel capability means users can switch fuels based on availability and cost, a significant advantage for job sites, RV travel, or emergency backup where fuel supply chains vary. On gasoline, the T08072 runs at full 8,000 watts. On propane, output drops to 7,250 watts. On natural gas, it falls to 5,500 watts. This tiered output reflects the energy density of each fuel type and shapes what users can realistically power during extended outages or remote work. The 8-gallon tank delivers 12 hours of runtime at both 25% and 50% load on gasoline, meaning users can operate a moderate load overnight without refueling. For job sites and backup power scenarios, this runtime eliminates mid-shift fuel stops.

The Cat RP12000 E is a 12,000-watt gasoline generator built for job sites, construction crews, and homeowners who need sustained power for multiple heavy tools or appliances simultaneously. The 15,000-watt peak output handles startup surges from air compressors, circular saws, and welders without stalling. At 350 pounds, this is a stationary or semi-portable unit. It ships with a wheel kit, battery charger, and full tool set, meaning users can operate it immediately without additional purchases.