Champion 4000W Dual Fuel Inverter (201050)

Champion's own pitch — 'one of the lightest 4,000-watt inverters in the industry' — checks out.

Check price on Amazon (affiliate link) →

Specs

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.

• Fridge, Wi-Fi, and lights

  730 W running · 2,230 W peak
  ✓ runs it
• Storm essentials (fridge, freezer, furnace fan, sump pump)

  3,080 W running · 4,630 W peak
  ✗ too much
• Essentials plus a 10,000 BTU window AC

  4,280 W running · 6,680 W peak
  ✗ too much
• Most of the house (well pump, central AC, laundry)

  13,680 W running · 19,680 W peak
  ✗ too much

The installer's take

3,000W running (4,000W surge) with a dedicated TT-30R RV outlet covers a rooftop AC on the smaller end plus the basics, and 51.8 lb is genuinely light for the output class — most 4,000W-surge units run 90-120+ lb. Dual fuel adds the usual propane-shelf-life option at a modest running-watts derate. No electric start and no GFCI outlets are the tradeoffs for the low weight and price; the optional parallel kit is sold separately if one unit isn't enough.

Compare it