YamahaEF2200iS

Yamaha · model EF2200iS

Inverter Generator · Gasoline

Yamaha EF2200iS

~$1,349approx. list price

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  1. 800 WLights, phones, router, a CPAP
  2. 2,200 WFridge, freezer and the essentials
  3. 4,000 WFurnace blower, sump pump or a window AC
  4. 7,500 WWell pump or a small central AC
  5. 18,000 WWhole home with central air

1,800 W running, 2,200 W surge — sustains the lights, phones, router, a CPAP tier.

Best forCampers and RVers who want a Honda-class 2 kW inverter with a built-in 30A outlet and an easy fuel-system drain for storage.

Yamaha built the EF2200iS to go head to head with the Honda EU2200i, and owners cross-shop the two every time. The pitch is the same: 1,800 watts continuous, about 55 lbs, 57 to 65 dBA depending on load, and an engine with a reputation for starting on the first or second pull after sitting. It earns its keep as a camping and short-outage generator that runs a fridge, a few lights, a router and a window unit's worth of small loads. Owner reports lean on the CO sensor, the easy carb drain that lets you run the bowl dry for storage, and the 30A RV outlet that Honda's base model lacks. Price and noise are the sore points: $1,349 list, rarely discounted, and a few owners find it louder than the Honda at full load. Twin Tech lets you link two for 3,600 watts.

From the spec sheet

Specifications

Running watts
1,800 W
Starting watts
2,200 W
Fuel tank
1.24 gal
Runtime
10.5 hrs at 1/4 load (1.24 gal tank)
Type
Inverter Generator
Fuel
Gasoline
Noise
65 dB
Outlets
2x 120V 20A duplex plus 1x 120V 30A RV outlet, 12V DC (3A), Twin Tech parallel
Transfer-switch ready
No
Weight
55.2 lbs
Warranty
3-year limited
Model
EF2200iS

1,800 W running, 2,200 W surge·55 lbs, 57-65 dBA·30A RV outlet and Twin Tech

At a glance

Strengths

  • +Built-in 30A RV outlet, which the base EU2200i does not have
  • +CO sensor shuts the engine down on high carbon monoxide
  • +Easy carb drain makes storage straightforward

At a glance

Drawbacks

  • −About $1,349 list; costs more than most 2 kW inverters
  • −65 dBA at rated load, louder than Honda's published figure
  • −1.24 gal tank limits runtime at heavier loads
  • −No electric start

Head to head

Compare the Yamaha EF2200iS

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~$2,399

Inverter Generator · Gasoline · 61 dB

Yamaha EF3000iSEB

2,800 W / 3,000 W surge · up to fridge, freezer and the essentials

running
2,800 W

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Westinghouse iGen5000DFc EFI
~$1,399

Inverter Generator · Dual Fuel (Gas/Propane) · 61 dB

Westinghouse iGen5000DFc EFI

3,900 W / 5,000 W surge · up to fridge, freezer and the essentials

running
3,900 W

Best for RV owners and outage-prone households who want 4 kW, EFI and propane on wheels at well under Honda or Yamaha prices.

Firman WH03242
~$1,280

Inverter Generator · Dual Fuel (Gas/Propane) · 58 dB

Firman WH03242

3,200 W / 4,000 W surge · up to fridge, freezer and the essentials

running
3,200 W

Best for Camp and short-outage users who want a dual fuel 3 kW inverter with CO shutdown and are willing to pay more than WEN charges.