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Head-to-head · Best Portable Generators

DuroMax XP12000EH 9500W Dual-Fuel Generator vs Yamaha EF2200iS Inverter Generator

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

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The short answer

Yamaha EF2200iS Inverter Generator comes out ahead by a clear margin (4.5 vs 3.4). Yamaha EF2200iS Inverter Generator is best for: campers, caravanners and tailgaters who want quiet, clean power in a carry-by-hand unit. Read the strengths below before deciding.

DuroMax XP12000EH 9500W Dual-Fuel Generator
Ranked #5 in Best Portable Generators
DuroMax XP12000EH 9500W Dual-Fuel Generator
1 source$1,299as of Oct 19

Bob Vila's whole-home backup recommendation went to the DuroMax XP12000EH, a heavy-duty conventional generator. Its 9,500 running watts handle a central AC, refrigerator, well pump and lighting at the same time, and the dual-fuel design lets you switch to propane when gas stations run out during a storm. It's loud, and it isn't safe for sensitive electronics without a surge protector, but $1,399 is strong value.

Strengths
  • — 9,500 running watts and 12,000 peak watts handles whole-home backup including a central AC unit
  • — Electric key start with included battery makes cold-morning starting effortless versus heavy recoil pull
  • — Transfer-switch-ready 50A outlet plus 30A twist-lock for direct hookup to a home service panel
Watch-outs
  • — Heavy 224 lb dry weight — Bob Vila measured 90 dBA close-up and 74 dBA at 23 feet, much louder than inverter units
  • — Only one 120V duplex outlet limits direct extension-cord use for contractors needing multiple circuits
$1,299 · Check Price on AmazonFull review →
Yamaha EF2200iS Inverter Generator
Higher ratedRanked #3 in Best Portable Generators
Yamaha EF2200iS Inverter Generator
3 sourcesall derived$1,284.96as of Oct 19

The Yamaha EF2200iS is a 79cc gasoline inverter generator rated at 2,200 peak and 1,800 running watts, weighing 55.2 pounds. Bob Vila named it its best inverter pick, measuring 71 dB at 5 feet and praising its tri-handle carry and fuel economy; Field & Stream, whose writer has used one for years, picked it as its best portable model; and RV Daily ran a caravan air-conditioner from it without trouble. Its limits are output and the RV outlet, which only gives full 30-amp service when two units are paralleled. It suits campers, caravanners and tailgaters who want quiet, clean power; anyone needing to back up major home circuits should look at a larger generator.

Strengths
  • — Quiet running: Bob Vila measured 71 dB at 5 feet, and Field & Stream likens low load to a fan
  • — Ran a caravan air-conditioner plus device charging in RV Daily's test without overloading
  • — Three-handle frame makes it easy to carry with one or two hands
Watch-outs
  • — The 30A RV outlet only delivers full output when two units run in parallel
  • — Rated at 1,800 running watts, so it is sized for camps and RVs, not a whole house
$1,284.96 · Check Price on AmazonFull review →

Derived means the reviewer published no score, so one was inferred from their written verdict. Everything else is a number the publisher printed. How we rank.

How they stack up

DuroMax XP12000EH 9500W Dual-Fuel Generator

Completely different product class from the Honda EU2200i and WEN 56235i: those are portable inverters under 50 lbs with 1,800 and 1,900 running watts, while this is a 224 lb whole-home backup unit with 9,500 running watts. It measures 74 dBA at 23 feet, against 51 dBA for the WEN. The EcoFlow Delta 2 Max is the indoor-safe battery alternative for shorter outages.

Yamaha EF2200iS Inverter Generator

In Bob Vila's comparison table the EF2200iS matches the Honda EU2200i at 1,800 running and 2,200 peak watts, but weighs 55.2 pounds against the Honda's 47.4 and adds a 30A RV outlet and a 12V DC socket. Unlike the battery-based EcoFlow Delta 2 Max, it runs on gasoline and needs refuelling rather than recharging.

Specs side-by-side

SpecDuroMax XP12000EH 9500W Dual-Fuel GeneratorYamaha EF2200iS Inverter Generator
Running Watts (gas)9,500W—
Peak Watts (gas)12,000W—
Running Watts (propane)8,075W—
Fuel TypeDual-fuel (gas/propane)—
Tank Size8.3 gal—
Runtime (50% load)8 hours—
Noise (23 ft)74 dBA—
Outlets1x 120V duplex, 1x L5-30R, 1x L14-30R, 1x 14-50R, 1x 12V DCTwo 120V-20A, one 120V-30A, one 12V DC
Weight224 lbs55.2 lb
Engine457cc OHV 4-stroke79cc
Start TypeElectric key + recoil—
Warranty3-year limited—
Wattage12000 watts2200 watts
Voltage240 volts120 volts
Peak Output—2,200 W
Running Output—1,800 W
Fuel—Gasoline
Fuel Tank—4.7 L
Dimensions—555 x 300 x 470 mm
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