Yamaha EF2800i generator - Dutchmen Owners

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Old 01-13-2016, 10:44 PM   #1
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Yamaha EF2800i generator

Hello All,

Does anyone out there have the Yamaha EF2800i generator? I'm thinking of buying one. I would be interested in your experience with it as well as good and bad assessments using it.

Thanks,

Dale
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Old 01-13-2016, 11:24 PM   #2
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Can't go wrong with the Yamaha. Do you plan to run your A/C with it? It may not have enough power for that. For basic power needs you can get by with 2,000 watts. Most people seem to prefer (I know I do) using 2x2,000 watts for warm weather, then they only need a single one for colder weather. I ran the Honda combo for several years and it worked great. Sold them a while back and haven't bought a replacement yet.

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Old 01-14-2016, 12:03 AM   #3
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Dale,

Mine is a Yamaha 3000W inverter, my only complaint with it is the weight.

The only down side is I can't run 2 high draw appliances at the same time, just have to turn of the A/C to use the microwave.

If I were to buy a generator today I would go with the 2 X 2000W set up. I like the way Champion has done the stackable model, they would fit nicely in the place where I want my generator, the Yamaha won't.

As Aaron said, there are times when you need one but not both.
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Old 01-14-2016, 02:40 PM   #4
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We just down sized to the Yamaha EU2000 and it runs great. It can run everything we need (TV, microwave, etc) just not AC. I'm fairly certain the 2800 would not handle the AC either.
We originally had a Honda EU3000 and it was a heavy and large beast. I had to put it in a cargo basket off the back of the camper (receiver hitch) to transport it and could not move or lift it alone. What I found is we rarely if ever needed the AC when boon docking and that's the only reason we needed something that large.
I can easily carry and store the 2000 Yamaha myself and best of all it fit's right in the storage compartment at the front of my TT. We looked at the Yamaha 2800 but it's a bit larger and heavier and IMO won't do anything more than the 2000 could handle for our needs.
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Old 01-14-2016, 02:51 PM   #5
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The way I read it is the altitude loss at 10,000 ft is 35%. That would put the generator amps at 15.16 amps available from the 2800i. That's not enough to start or run the compressor plus there is the AC fan motor. I'm not even sure 2 Yamaha 2000i compressors will work. When linked I don't think they have double the power. I read that there is some power loss. Anyone have thoughts on that?
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Old 01-14-2016, 03:59 PM   #6
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I had the EF2400i which did better then the Honda 2000 I had before it. Got a good deal on a Champion 3100 so bought it & sold the Yamaha here at work. Champion will run my one A/C unit. The Honda & Yamaha didn't. I also liked that the Champion has a 30 amp plug.
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Old 01-14-2016, 04:41 PM   #7
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Quote:
Originally Posted by Fdhealy4 View Post
The way I read it is the altitude loss at 10,000 ft is 35%. That would put the generator amps at 15.16 amps available from the 2800i. That's not enough to start or run the compressor plus there is the AC fan motor. I'm not even sure 2 Yamaha 2000i compressors will work. When linked I don't think they have double the power. I read that there is some power loss. Anyone have thoughts on that?
The best thing for you to do is take your trailer to a Yamaha dealer and get the generator hooked up to see if it would do what you need it to do.

That's how I choose the 3000i (2800W running), I started with a 2000i and worked up from there. The newer A/Cs don't need as much power to fire up as the dinasour that was in our old Airstream. It's very noticable how fast the gen drops back from the surge to running speed.

The 2 - 2000W setup must work, there's a lot of folks running them and I will be joining them if I can get a reasonable $ out of my 3000W generator.
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Old 01-14-2016, 06:02 PM   #8
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Also consider installing the hard start capacitor on your AC unit - makes start up very easy - I was able to run my AC on my last rig with a 2800W generator using the capacitor.
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Old 01-14-2016, 06:30 PM   #9
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Hi Dale,
Being a very newbie, I'm looking for inverter gens myself.
Since the AC will be your biggest single load, I would check the manual to see how many starting watts it will draw.. Dometic recommends a minimum of a 3500 watt generator to start MY AC.

So If the Yamaha can handle the loads it could be a winner.. If not, Jim's just about got me sold on a pair of 2000 watt Champions , and the majority of on-line reviews are very good.. I expect the same for the Yamaha gens as well.

A lot of this was covered in this thread:Paralleling marine type battery... The input really helped me consider factors for sizing batteries, and just as many selecting a gen set..

All the best
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Old 01-14-2016, 08:36 PM   #10
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Quote:
Originally Posted by Firstime RVer View Post
Hi Dale,
Being a very newbie, I'm looking for inverter gens myself.
Since the AC will be your biggest single load, I would check the manual to see how many starting watts it will draw.. Dometic recommends a minimum of a 3500 watt generator to start MY AC.

So If the Yamaha can handle the loads it could be a winner.. If not, Jim's just about got me sold on a pair of 2000 watt Champions , and the majority of on-line reviews are very good.. I expect the same for the Yamaha gens as well.

A lot of this was covered in this thread:Paralleling marine type battery... The input really helped me consider factors for sizing batteries, and just as many selecting a gen set..

All the best
What size AC do you have? I call Dometic and they told me that the amps required for my 13,500 AC was 15.3 amps, that's about 1836 watts. I asked what the starting amps needed to be and they said they didn't have that info. They emailed me the spec sheet and it doesn't say either. At 10,000 ft you lose about 35% efficiency. That means I would need a minimum of 2825 watts just to run the AC once it got started. Where did you get the 3500 starting watts required figure from? If you also have a 13,500 AC that 3500 watts figure would be very helpful in figuring things out. Seems high for a 13,500 btu AC though.

Dale
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