Compare Generators Side-by-Side

Generator

Generator

5000 W

240 lbs

17 h

14 h

120/240

120/240

500 cc OHV 4-stroke, cast iron sleeve

223 cc OHV 4-stroke, cast iron sleeve

Recoil, Electric

5 years

3 years

13000 W

5000 W

17 h

8500 W

3200 W

12000 W

4500 W

6.5 h

CARB, EPA

CARB, EPA, ANSI/PGMA G300-2023

811640016470

840876140734

10500

4000

8500

3200

12000

4500

8.5

14

17

2x Duplex 120V 20A (5-20R) GFCI1x 120V 30A (L5-30R)1x 120/240V 30A (L14-30R)1x 120/240V 50A (14-50R)

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

60

60

500 cc OHV 4-stroke, cast iron sleeve

223 cc OHV 4-stroke

cast iron sleeve

cast iron

17

3.2

9

Low oil and overload protection, CO monitoring

Recoil, Electric, Remote

Recoil, Electric

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

5

3

The DuroMax XP13000HXT is a 10,500-watt tri-fuel generator built around a 500cc OHV engine with cast iron sleeves. It runs on gasoline, propane, or natural gas, which means users can adapt to fuel availability rather than being locked into a single source. At 10,500 running watts, this unit crosses into heavy-duty territory. It can simultaneously power a central air unit, water heater, and multiple household circuits during an outage. For job sites, it handles compressors, circular saws, and angle grinders without strain. The tri-fuel flexibility also makes it valuable for users in regions where propane or natural gas may be cheaper or more accessible than gasoline during extended outages.

The Firman T04073 is a 4,000-watt tri-fuel generator that runs on gasoline, propane, or natural gas. On gasoline, it delivers 5,000 starting watts and 4,000 running watts, enough to power a refrigerator, microwave, and multiple household circuits simultaneously. On propane, output drops to 3,600 running watts, and on natural gas it falls to 3,200 running watts. This fuel flexibility means users can switch between sources based on availability and cost, a significant advantage during extended outages or in remote locations where one fuel type may be scarce. The T04073 targets homeowners, RV owners, and job site operators who need reliable backup power without the commitment to a single fuel source. Its 5-gallon tank runs for 14 hours at 25% load on gasoline, translating to roughly one week of emergency backup if you run it a few hours per day. The unit includes a wheel kit, making it easier to position despite its 123.4-pound weight.