Honda EU2200i vs Yamaha EF2200iS (2026): Lighter and Quieter, or Longer Run and a 30A Plug?
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How we evaluated: WildJoule has not bench-tested either unit. Every number here comes from Honda’s published EU2200i specifications (powerequipment.honda.com) and Yamaha’s published EF2200iS specifications (yamahamotorsports.com), checked October 10, 2026. Interpretation of what the numbers mean in use is our editorial judgment and is labelled that way.
In the Honda EU2200i vs Yamaha EF2200iS decision, the power question is already settled: both are rated 1,800 W running and 2,200 W maximum at 120 V. Neither will start a rooftop AC more reliably than the other. What separates them is everything around the engine. The Honda is 7.8 lb lighter and starts 9 dB quieter at low load. The Yamaha carries 30% more fuel, runs 2.4 hours longer at a quarter load, and has a 30A RV outlet the Honda doesn’t. Pick the trade that matches how you’ll actually use it.
Quick verdict
Choose the Honda EU2200i if you carry the generator by hand, tent camp or tailgate, or camp under strict quiet hours. Choose the Yamaha EF2200iS if it mostly powers a small travel trailer with a 30A cord, or you want the longest overnight run on one tank. If you need a rooftop AC to start without fuss, the honest answer is neither one alone: buy two and parallel them, or step up to a 4,500 W unit.
To be upfront, I don’t own either of these and haven’t run them side by side. I’ve lined up both makers’ spec sheets and done the arithmetic on what each difference means in a real night of use. Power that cuts out without asking has been part of my normal for years, so the questions I care about are dull ones: how long it runs, how far you can carry it, and whether it plugs into what you already own.
Honda EU2200i vs Yamaha EF2200iS: spec comparison
| Spec | Honda EU2200i | Yamaha EF2200iS | Edge |
|---|---|---|---|
| Rated / max output | 1,800 / 2,200 W | 1,800 / 2,200 W | Tie |
| Noise (published) | 48 dB(A) ¼ load, 57 rated | 57–65 dBA ¼ to rated | Honda |
| Dry weight | 47.4 lb | 55.2 lb | Honda |
| Fuel tank | 0.95 gal | 1.24 gal | Yamaha |
| Run time at ¼ load | 8.1 h | 10.5 h | Yamaha |
| 30A RV outlet | No (20 A duplex) | Yes | Yamaha |
| CO shutdown | CO-MINDER | CO sensor | Tie |
| Parallel | Yes, to 4,400 W max; also pairs with EU2000i | Yes, Twin Tech with a second EF2200iS | Honda (wider pairing) |
| Fuel | Gasoline | Gasoline | Tie |
| Warranty | 3 yr residential | 3 yr limited | Tie |
A caution on the noise row. Honda and Yamaha publish noise differently (Honda gives two load points, Yamaha a range), and brands don’t always measure at the same distance. The direction is clear, the exact size of the gap less so.
Where the Honda wins: carrying it and keeping it quiet
7.8 lb sounds small until you add fuel and carry it 100 yards from a parking spot to a tent site. At 47.4 lb dry, the EU2200i is about as light as a full-featured 2,200 W inverter gets. If the generator lives in a car trunk and comes out by hand, that’s a daily difference, not a spec-sheet one.
Noise matters most at low load, which is where these generators spend their nights. Running a fridge and a fan, the Honda is rated at 48 dB(A) and the Yamaha’s range starts at 57. If you camp close to neighbours or under posted generator limits, that’s the spec to care about. The Honda also pairs with the older EU2000i, which helps if a friend or family member already owns one. Full details are in our Honda EU2200i review.
Where the Yamaha wins: run time and the RV plug
10.5 hours versus 8.1 at a quarter load is the gap between running through a full night and possibly refuelling at 3 a.m. That comes from the bigger tank, 1.24 gallons against 0.95. For an overnight outage or a dry-camping night with a CPAP and a furnace fan, the Yamaha is the more practical machine.
The 30A RV outlet is the other reason trailer owners lean Yamaha. Your shore cord plugs straight in with no dogbone adapter. Remember it doesn’t add capacity: a 30A RV service is 3,600 W at 120 V and both generators still stop at 1,800 W running. You still run the microwave or the water heater element, not both. Our Yamaha EF2200iS review covers the rest.
What neither one does
Both are gasoline-only, 120 V-only generators. Neither runs on propane, neither makes 240 V for a well pump or a home transfer switch, and neither has a reliable answer to a rooftop AC’s starting surge on its own. Plenty of 13,500 BTU units ask for more than 2,200 W in that first second; a soft starter often closes the gap, but that depends on your AC, and it’s our inference rather than either maker’s claim.
If any of those are on your list, the comparison you want is different. A 4,500 W dual-fuel inverter gives roughly double the running watts, a TT-30R outlet and propane, at around twice the weight; our Champion 4500W inverter generator review covers that step up. For house backup with 240 V, see the best dual fuel generator for home backup.
Honda EU2200i vs Yamaha EF2200iS by buyer
| If you are… | Pick | Why |
|---|---|---|
| Tent or car camping, carrying by hand | Honda | Lighter, quieter at low load |
| Small trailer with a 30A cord | Yamaha | Plugs straight in, longer night |
| Overnight home outage, fridge + CPAP | Yamaha | 10.5 h at ¼ load |
| Already own a Honda EU2000i | Honda | The two parallel together |
| Want a rooftop AC without fuss | Neither alone | Pair two, or go 4,500 W |
Whichever side of Honda EU2200i vs Yamaha EF2200iS you land on, budget for a heavy-gauge cord and a battery-backed CO alarm; our generator accessories guide lists what isn’t in the box. The wider field is ranked in best inverter generator for RV.
Frequently asked questions
Which is quieter, the Honda EU2200i or the Yamaha EF2200iS?
On published figures, the Honda: 48 dB(A) at a quarter load versus the Yamaha’s 57 dBA at the bottom of its range. Measurement methods differ between brands, so treat the gap as approximate.
Which runs longer on a tank?
The Yamaha, rated 10.5 hours at a quarter load on 1.24 gallons, against the Honda’s 8.1 hours on 0.95 gallons.
Can you parallel a Honda EU2200i with a Yamaha EF2200iS?
Neither maker lists cross-brand pairing. Honda lists pairing with another EU2200i or an EU2000i; Yamaha lists Twin Tech with a second EF2200iS. Plan on two of the same brand.
Is either one more powerful?
No. Both are rated 1,800 W running and 2,200 W maximum at 120 V.
Before running either near a home, read the CPSC’s portable generator safety center.
Related: whether either can start your rooftop unit is covered in generator for RV air conditioner, and both appear alongside Honda’s EU1000i and the Westinghouse iGen2200 in the best quiet generator for camping picks.
Last updated: October 10, 2026. This Honda EU2200i vs Yamaha EF2200iS comparison uses manufacturer-stated specifications, not WildJoule test results. We do not display live prices.