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Old 01-16-2012, 11:22 PM   #11
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Yes your math is correct, Watts equals Voltage times Current. If you have 30 amps, at 120 volts, then you have 30 times 120 equals 3600 watts. Will that run everything in your trailer, probably not. You have losses in power cords and plugs and such, with no margin what so ever. To run everything in your camper, assuming 30 amp service, you would need a good 4000 watt generator, and a good, pure sine wave one, for all the electronics most people seem to have to take camping with them. That is why the Onan's and others found in motor homes cost thousands of dollars.

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Old 01-17-2012, 12:54 AM   #12
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muzbomb, you really need to educate yourself about inverter generators and what's out there.

IMHO, the best choice is two Honda 2000w inverter generators with the parallel kit or one Honda 2000w paired up with its Companion twin.
that way, if you don't need to use the a/c, just take one. if you need the a/c, then take both.
each weighs only 50lbs.

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Old 01-17-2012, 05:16 AM   #13
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Our EU3000is Honda has on many occasion powered the AC and the coffee maker at the same time in 30+ temps. But again price and they are heavy at around 130lbs.

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Old 01-17-2012, 08:34 AM   #14
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A Honda 1000 should be enough to charge the batteries, or run 1 small "non heating" appliance.

A Honda 2000 should power the microwave, with minimum other draws.

A Yamaha 2400 should run the AC without any other draws.....mine does. I even cut the fridge to gas only, and there has never been a problem.

A Honda 3000 should run the AC and another small draw "non heating" appliance.

You have more options with a 4000 watt generator. you get bigger, the generators get heavier. My Yamaha 2400 weighs in at around 80 lbs. with gas in it. That is getting up to about the limit that this ol' boy can handle any more.

You can stay reasonable lite by managing your power consumption. If you want to run the AC with Yamaha 2400, then you don't need to be watching TV or heating something in the microwave. If the missus wants to use the microwave or her hair dryer, then the AC is turned off.

Do yourself, your neighbors, and your electronics a favor by getting an true sine wave inverter type generator.

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Old 01-19-2012, 04:47 PM   #15
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1. What does you trailer have, a 30A or a 50A plug?

2. Do you plan to mount the generator permanently onto the trailer or do you plan to tote it?

3. Do you have a means of lifting the generator?

30 Amp
Short story is the Yamaha 2400 will not power the 15,000 BTU A/C. The 2400s were developed to be a the limits of toting and still power a 13.5 A/C.

Dual Honda 2000s will run a 15K BTU A/C. Mine does just fine. Add the boat tanks and they can run for days.

The other option is to parallel the Yamaha 2400s, but I have never seen anyone do this. The genset is capable of this, but I have never seen power kit for it. In theory it give sustain power around 4KW.

Many of the 3KW superquiets will also run a 15K BTU A/C too.

50 Amps
I don't think the Honda 4000 will do that (50 amps is more than 4 KW). The Honda 6500 is a thing of beauty in my humble opinion, but don't count on lifting it.

The Onans are nice, but some people do not like them. They are rugged and well made, but everything is expensive for them. But they are rugged.

The Honda 2000s are probably the most popular of all the gensets. Small, light, and reliable a pair powers most trailers. The other advantage is that they are a pair. If one fails, you are not running the A/C, but you can run everything else.

Also when you don't need the A/C you only need one. It also means you can use each genset individually for other activities...a pretty nice feature.

The Yamaha, Honda, and Bolies are very popular 3KW superquiets. With remote start capabilities it allows you to turn on the TT A/C while driving down the road so the trailer is cool when you stop.

Short of the 6500, you are always doing to have to watch your power. A/C compressor running, don't run any other heavy loads.
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Old 01-19-2012, 05:46 PM   #16
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I have a honda 2000. It will run the microwave but you should turn off the eco throttle when hitting it with heavy loads. Don't buy what you think you can get by with. Go bigger if you can. You may not want the motor running at high RPM's for extended times like running A/C. Even Honda 2000's make some noise when you're pushing them. I may pick up a honda 2000 companion in the future to pair with the one I have. They are nice as you can handle them easier and at idle they'll run all day on a gallon of gas. ng2951 is right, if you have the space and $, the EU6500 is an awesome quiet powerhouse. It would also make a great standby generator for the house with the proper transfer switch connections.
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Old 01-19-2012, 07:44 PM   #17
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Well you are getting a good taste of what you need to consider. But if you think back to basics and how you manage,water, waste, battery, the same should hold true with your 120 volt consumption. We decided a 2400 Yamaha would handle our needs and we will manage around what it can supply. So you will need to consider your demand at a given time, the weight you want to tow, the weight you want to carry, and the noise you want to create in the campground. Its up to you and the $$ you want to spend on these decisions. Good luck but if your next to me I hope you decide on a nice quite unit.
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Old 01-19-2012, 08:16 PM   #18
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Originally Posted by bikendan View Post
muzbomb, you really need to educate yourself about inverter generators and what's out there.

IMHO, the best choice is two Honda 2000w inverter generators with the parallel kit or one Honda 2000w paired up with its Companion twin.
that way, if you don't need to use the a/c, just take one. if you need the a/c, then take both.
each weighs only 50lbs.


A lot of people use that setup!
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Old 01-19-2012, 09:21 PM   #19
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Honda Companion 2000 for me, can't beat em.....

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Old 01-19-2012, 10:25 PM   #20
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I have a Yamaha 3000 with 500 watt boost and it stays in the bed of the truck. Too heavy to take out routinely, it handles the 15K AC and the microwave just fine.

If I had to do it over again I would buy the two Honda 2000s (one the companion).


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