Firman T07571 Tri-Fuel 7500W is a portable generator from Firman, rated 7,500 running watts with 9,400 starting watts on gasoline (6,750 W on propane), measured at 74 dBA, with 120/240V output.
General
Type
portable
Fuel
gasoline, propane, natural-gas
Power output
Running watts (gas / LP for standby)
7500 W
Starting watts (gas)
9400 W
Running watts (propane)
6750 W
Starting watts (propane)
8450 W
Running watts (natural gas)
5500 W
Starting watts (natural gas)
6900 W
Performance
Noise level
74 dBA
Runtime at 25% load (gas)
12 h
Fuel tank
8 gal
Electrical
Output voltage
120/240V
Transfer-switch-ready outlet
30 A
Features
Start type
electric
Engine
Engine displacement
439 cc
Physical
Weight
213 lb
What the numbers mean
At 7,500 running watts
on its best fuel, this unit covers a partial-home setup through a 30 A transfer switch or interlock: refrigerator, furnace, a well or sump pump, and lights, with load management for anything bigger.
Runs on gasoline, propane, natural gas — expect lower output on propane (roughly
10%) and natural gas (roughly 20%) than on gasoline; the spec table shows the
published per-fuel ratings.
House hookup: pairs with a 30 A generator inlet (
L14-30) and a transfer switch or interlock
installed by an electrician.
What can the Firman T07571 Tri-Fuel 7500W run during an outage?
With 7,500 running watts on its best fuel, the Firman T07571 Tri-Fuel 7500W covers a partial-home setup through a 30 A transfer switch or interlock: refrigerator, furnace, a well or sump pump, and lights, with load management for anything bigger. Add up your actual loads with a sizing worksheet — the bands here are rough guidance, not a load calculation.
What inlet does the Firman T07571 Tri-Fuel 7500W need to power a house?
A 30 A generator inlet (an L14-30 connection) wired to a transfer switch or interlock kit — an electrician's job that normally requires a permit. Never backfeed through a dryer or wall outlet.
