Champion 3400-Watt Dual Fuel Inverter (100263)
The dual-fuel inverter that lets you keep clean-burning propane on the shelf.
Specs
| Running watts | 3,100 W |
| Starting watts | 3,400 W |
| On propane | 2,790 W run · 3,060 W start |
| Type | Inverter |
| Fuel | Dual fuel (gas + propane) |
| Weight | 95.7 lb |
| Noise (mfr figure) | 59 dBA |
| Fuel tank | 1.6 gal |
| Runtime (mfr claim) | up to ~7.5 h on gasoline at 25% load |
| Outlets | Two 20A 125V, TT-30R (RV), 12V DC |
| Start | Electric |
| Parallel capable | Yes |
| CO safety shutoff | Varies by version — check the listing |
| Typical street price | ~$850 (fluctuates — check listing) |
Figures are the manufacturer's published specs; dashes mean the maker doesn't publish a number. Verify against the current datasheet before you buy.
What can it actually run?
Checked with the same math as our calculator: total running watts, plus the single largest motor surge on top. “Tight” means it technically fits but the load sits above 80% of rated output — fine briefly, not where you want to live.
- ✓ runs itFridge, Wi-Fi, and lights730 W running · 2,230 W peak
- ✗ too muchStorm essentials (fridge, freezer, furnace fan, sump pump)3,080 W running · 4,630 W peak
- ✗ too muchEssentials plus a 10,000 BTU window AC4,280 W running · 6,680 W peak
- ✗ too muchMost of the house (well pump, central AC, laundry)13,680 W running · 19,680 W peak
The installer's take
Gasoline goes stale in months; a 20 lb propane cylinder keeps for a decade. Being able to run either fuel is worth a lot in an outage kit, and this Champion is the model that made dual-fuel inverters mainstream. Note the honest ratings: 3,100W running on gas drops to about 2,790W on propane — plan around the propane number if that's your storage fuel.
Pros
- Runs on gasoline or propane out of the box
- Electric start with battery included
- RV-ready TT-30R outlet
Cons
- Output drops ~10% on propane
- Small 1.6 gal gas tank for its thirst