Yamaha EF2200iS review: our full analysis
Brand: Yamaha · Ranked 157th of 174 · Our methodology
5.8/10 Power4.5 Runtime6.2 Noise9.2 Features6.9 Portability4.7 Watts per dollar4.2 Dotted line: average of the 174 models. Relative scores based on specs, no hands-on testing. Where to buy Today's best priceTypical price: $1,200–$1,800 Check best price Affiliate link: As an Amazon Associate we earn from qualifying purchases.Not clearly published by the manufacturer, take with caution: outlets, CARB compliance, noise level.
Pros
- 1,800 rated and 2,200 peak watts with a TT-30R RV outlet.
- Up to 10.5 hours at 1/4 load on 1.24 gallons.
- CO sensor shutdown, 12V DC output and Twin Tech parallel capability.
Cons
- Recoil start only.
- 57-65 dB(A), louder than the Honda EU2200i.
- 55.2 lb.
Best for
- Camping, tailgating and small jobs away from an outlet
- Places where noise matters: campgrounds, close neighbors
Specifications
| Type | Gas inverter (inverter: clean power) |
|---|---|
| Running watts | 1,800 W gasoline |
| Starting watts | 2,200 W gasoline |
| Fuel | Gasoline |
| Fuel tank | 1.24 gal |
| Runtime | 10 hours at 25% load · ≈ 6 hr 35 min at 50% load (estimate) |
| Noise | 57 dB(A) (manufacturer figure) |
| Weight | 55.2 lb |
| Outlets | 2 × 120 V household outlets (5-20R) · TT-30R 30 A RV outlet · 12 V DC outlet |
| Transfer switch ready | No (no 240 V outlet) |
| Start | Recoil (pull start) |
| CO shutoff sensor | Yes |
| Parallel capable | Yes |
| Emissions | Not stated |
| Engine | 79 cc |
| Warranty | 3 years |
Yamaha EF2200iS1,800 running W · Gas inverter · typical price $1,200–$1,800
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Who is it for?
The Yamaha EF2200iS is mostly suited to:
- Camping, tailgating and small jobs away from an outlet.
- Places where noise matters: campgrounds, close neighbors.
Power output: running and starting watts
The Yamaha EF2200iS delivers 1,800 W continuously and up to 2,200 W for a few seconds to start motors. It handles 8 of the 14 loads on our typical list one at a time; add up the running watts of everything you run together, plus the extra starting watts of the biggest motor. As an inverter, it produces clean power suited to laptops, TVs and furnace control boards.
| Appliance | Running / starting watts | Will it run? |
|---|---|---|
| Wi-Fi router and modem | 20 W / 20 W | ✅ Yes |
| CPAP (no humidifier) | 50 W / 50 W | ✅ Yes |
| Laptop or TV | 150 W / 150 W | ✅ Yes |
| Full-size refrigerator | 700 W / 2,200 W | ✅ Yes |
| Chest freezer | 500 W / 1,500 W | ✅ Yes |
| Furnace blower (1/2 HP) | 800 W / 2,350 W | ❌ No |
| Sump pump (1/2 HP) | 1,050 W / 2,150 W | ✅ Yes |
| Microwave (1,000 W) | 1,000 W / 1,000 W | ✅ Yes |
| Space heater | 1,500 W / 1,500 W | ✅ Yes |
| Window AC (10,000 BTU) | 1,200 W / 3,600 W | ❌ No |
| RV roof AC (13,500 BTU) | 1,800 W / 2,800 W | ❌ No |
| Circular saw | 1,400 W / 2,300 W | ❌ No |
| Well pump (1 HP, 240 V) | 1,000 W / 4,000 W | ❌ Needs 240 V |
| Central AC (3-ton, soft start) | 3,800 W / 5,500 W | ❌ Needs 240 V |
Typical figures; check the label of your own appliances. One load at a time: add up everything you run together.
Yamaha EF2200iS1,800 running W · Gas inverter · typical price $1,200–$1,800
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Fuel tank and runtime
The fuel tank holds 1.2 gallons of gasoline. The manufacturer quotes 10 hours at a quarter load. At half load, count on roughly 6 hr 35 min (our estimate from the quarter-load figure). That is about 0.19 gallon per hour at half load, or 5 gallons for a full day of running, so plan your fuel storage for a multi-day outage.
57 dB(A): how loud is it?
The manufacturer rates the Yamaha EF2200iS at 57 dB(A), usually measured at 23 feet (7 m) and a light load. That is quieter than a normal conversation: suitable for campgrounds and close neighbors.
Outlets: home, RV and tools
Its panel offers 2 × 120 V household outlets (5-20R), TT-30R 30 A RV outlet, 12 V DC outlet. It has no 240 V outlet: it runs plug-in appliances through extension cords, not hardwired circuits or a 240 V well pump. The TT-30R outlet plugs straight into a 30 A RV. It is parallel capable: linked to a second compatible unit with a parallel kit, the two outputs combine.
Start type, CO shutoff and warranty
It starts with a recoil (pull) cord. A CO shutoff sensor stops the engine if carbon monoxide builds up around it; it does not replace distance (20 feet from the house) and CO alarms indoors. The warranty runs 3 years (residential use).
Typical price $1,200–$1,800: good value per watt?
Relative to its running watts, the Yamaha EF2200iS scores 4.2/10 on value: a high price per watt, which its other strengths may justify. Inverters always cost more per watt than open frames: compare it with other inverters. Generator prices on Amazon move a lot, especially before hurricane season: check the current price before you buy.
Yamaha EF2200iS1,800 running W · Gas inverter · typical price $1,200–$1,800
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Our verdict on the Yamaha EF2200iS
The Yamaha EF2200iS scores 5.8/10 and ranks 157th out of 174 generators analyzed. Its strengths: 1,800 rated and 2,200 peak watts with a TT-30R RV outlet; up to 10.5 hours at 1/4 load on 1.24 gallons. It is best suited to camping, tailgating and small jobs away from an outlet and places where noise matters: campgrounds, close neighbors.
Yamaha EF2200iS1,800 running W · Gas inverter · typical price $1,200–$1,800
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Featured in our rankings
Sources
- Official Yamaha product page (specifications)
- Amazon.com listing (availability and typical price, November 2026)
Frequently asked questions
Will the Yamaha EF2200iS run a refrigerator?
Yes: its 1,800 running watts and 2,200 starting watts cover a full-size fridge, including the compressor's startup surge.
Can the Yamaha EF2200iS power a house?
Only plug-in appliances through extension cords: it has no 240 V outlet for a transfer switch.
How long does the Yamaha EF2200iS run on a tank?
About 6 hr 35 min at half load (our estimate), and 10 hours at a quarter load.
Does the Yamaha EF2200iS run on propane?
No, it runs on gasoline only.
Is the Yamaha EF2200iS quiet?
The manufacturer rates it at 57 dB(A), quiet enough for most campgrounds.
Yamaha EF2200iS1,800 running W · Gas inverter · typical price $1,200–$1,800
Check best price
Compare this model
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