Firman · model WH03242
Inverter Generator · Dual Fuel (Gas/Propane)
~$1,280approx. list price
3,200 W running, 4,000 W surge — sustains the fridge, freezer and the essentials tier and everything below it.
Best forCamp and short-outage users who want a dual fuel 3 kW inverter with CO shutdown and are willing to pay more than WEN charges.
The dual fuel Whisper Hybrid, with electric start and Firman's CO Alert sensor. On gasoline it makes 3,200 running and 4,000 starting watts, and on propane 3,000 and 3,750, which covers a fridge, a furnace blower, lights and most RV air conditioners on a soft start. Quiet running at light load, the CO alert that shuts the engine down when carbon monoxide rises, and having a second fuel when gas lines are long are the points in its favor. Complaints are price, since at $1,280 it costs more than a WEN DF480iX with more watts, and weight: Firman lists 90 lbs, and some retailers list up to 111. The 58 dB is a quarter-load figure, and owners find it louder under load. The TT-30R is a 120V outlet that does not feed a transfer switch. It carries a 3-year warranty on new units, and service comes from Arizona.
From the spec sheet
3,200 W gas, 3,000 W propane·CO Alert shutdown sensor·Electric start, 3-year warranty
At a glance
At a glance
Head to head
Inverter Generator · Gasoline · 58 dB
3,000 W / 3,300 W surge · up to fridge, freezer and the essentials
Best for RV and campsite users who want a remote-start 3 kW inverter from a US-based service team and will pay a premium over WEN.
Portable Generator · Dual Fuel (Gas/Propane) · 74 dB
8,000 W / 10,000 W surge · up to well pump or a small central AC
Best for Owners with a manual transfer switch who want a 50-amp dual-fuel generator without paying for CO shutdown or a bigger tank.
Portable Generator · Tri Fuel (Gas/LP/NG) · 74 dB
7,500 W / 9,400 W surge · up to well pump or a small central AC
Best for Budget-minded homeowners with natural gas who want set-and-forget fuel flexibility for storm season.