Re: Honda EU2000i vs. Yamaha EF2400iS
Well, I'll chime in since I've bought 3 of the yamaha units and 4 of the honda ones.
honda:
1. cooling air (read: hot) exits through louvered back end. useful for heating water and drying clothes.
2. recoil started is inside unit. I hate to think what a rope replacement entails.
3. 1600w rated, 2000 surge
4. fuel shutoff integrated with electrical shutoff
5. 1 gal tank. You can add an extended run setup that will suction from a 5/10/etc gal tank. no fuel gauge.
6. running noise is more of a hummmmmmm sound.
7. easy to change oil, just tip it over.
yamaha:
1. cooling air exit in several directions. unable to be harnessed easily.
2. typical outside-accessible rope
3. 2500w rated, 2800 surge (efg2800 series)
4. separate fuel shutoff. possible to turn it off and let the carb run dry
5. 3 gal tank with gauge. no such extended run setup easily available w/o cutting the fuel lines.
6. while a touch noisier than the honda (and vastly quieter that traditional gensets), running noise is more staccato/pop pop pop.
7. oil change requires wrench and spillage.
In short...
Both are extremely strong offerings that will run critical items in a normal house. The yamaha's got a little more power, but it's also noisier and a touch heavier. Both handle sudden surges very well.
I use the honda. The stream of usable hot air pouring out the back is very useful for my purposes. It's VERY nice to find your wet shoes completely dry after just an hour. The hum it puts out is practically soothing, making it easy to sleep at night with it going.
I haven't made a measured analysis, but the honda appears better on fuel for the same load.
I question why you are buying 2 more of what you already have. I've seen eu2000s with over 5000 hours on them. (no, that's not a typo) If I had only eu2000 models my next purchase would be something DIFFERENT.