FIRMAN T04472 vs Westinghouse WGen3600DFv
Two of the dual-fuel & open-frame portable generators in our best dual-fuel portable generators: champion, westinghouse, duromax, wen & firman comparison, lined up spec by spec. Every figure comes from the manufacturer pages linked below, and the scores use the same published formula as the full ranking.
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Best for: Tri-fuel 4,400 W with 13 h at half load
Check price at AmazonBest for: CARB-compliant RV-ready dual fuel
Check price at AmazonSpec-by-spec comparison
Green marks the better published figure. "Not listed" means the manufacturer doesn't publish it.
| Spec | FIRMAN T04472 | Westinghouse WGen3600DFv | Weight |
|---|---|---|---|
| Running watts (gasoline)Continuous (rated) output on gasoline as the maker lists it. | 4400 W | 3600 W | 25% |
| Starting wattsPeak (surge) output on gasoline for starting motors. | 5500 W | 4650 W | 5% |
| Runtime at 50% loadHours on a full gasoline tank at half load, as the maker states. | 13 h | 10.5 h | 15% |
| Runtime at 25% loadHours on a full gasoline tank at quarter load, as the maker states. | Not listed | 14 h | 5% |
| NoiseThe maker's noise figure in decibels. Load and distance differ by maker; the basis is in each product's notes where stated. | 67 dBA | 68 dBA | 10% |
| Transfer-switch readyYes when the generator has a 120/240V L14-30R or 14-50R outlet, or the maker calls it transfer-switch ready, so an electrician can connect it to your home through a transfer switch or interlock. | Not listed | No | 10% |
| CO shutoffYes when the maker lists automatic carbon monoxide shutoff. | Yes | No | 10% |
| Runs on propaneYes for dual- or tri-fuel models. | Yes | Yes | 10% |
| WeightThe maker's listed (dry) weight. | 116 lb | 104 lb | 5% |
| CARB compliantYes when the maker lists CARB compliance. Not listed counts as no. | Not listed | Yes | 5% |
| Starting (peak) watts, gasoline | 5,500 W | 4,650 W | info |
| Running watts on propane | 3,950 W | 3,240 W | info |
| Running watts on natural gas | 3,200 W | Not listed | info |
| Fuel tank | 5 gal | 4 gal | info |
| Outlets | Not published by the maker | Not published by the maker | info |
| Noise basis | 67 dB at quarter load | Not listed | info |
| CO shutoff | FIRMAN CO Alert | No | info |
| CARB | Not published by the maker | Not listed | info |
| GenPick score | 6.8/10 | 4.1/10 | 100% |
Where each one comes out ahead
FIRMAN T04472
Better published figure on: Running watts (gasoline), Starting watts, Runtime at 50% load, Noise, CO shutoff.
What we like
- Lowest noise in this comparison (67 dBA)
Watch out for
- Runtime at 25% load not published by Firman
Westinghouse WGen3600DFv
Better published figure on: Weight.
What we like
- Lowest weight in this comparison (104 lb)
Watch out for
Verdict
FIRMAN lists 4,400 vs 3,600 W, tri fuel and CO alert; Westinghouse lists CARB compliance, 68 vs 67 dBA and 104 vs 116 lb.
- FIRMAN T04472: FIRMAN: T04472
- Westinghouse WGen3600DFv: Westinghouse: WGen3600DFv