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Old 06-29-2014, 05:17 PM   #29
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Originally Posted by terryV View Post
Wow!! I thought you guys would have some good ideas, but never imagined I would get this much information. Thanks, guys, this is great!

Yamaha and Honda both make a light weight genny (2800 for Yamaha, 3000 Honda), recoil start that they both say will run a 13,500 BTU A/C. I'm pretty sure Yamaha has a tri power unit, don't know about Honda.

Usually, I run the air for a short time just to cool down a hot camper that has been setting in the sun, closed up all day. My Southwind had two 13,500 BTU A/Cs and either would run on a 14 amp breaker, but certainly not both.

So, for most of the time, I would be using enough current to run the converter to charge the batteries, nuke something in the microwave, and of course, make coffee.

The converter does what it wants, when it wants, so the genny would need to run it as well as the A/C. Most camper converters are 30 amp, as I understand it, but normally, I doubt they would be pulling that much.

I'm guessing either Yamaha or Honda would be good quality.
I would lean towards Yamaha. The converter on the trailer pulls around 1.5 amps the 30 amp rating is the DC output. I just ran the numbers for an SOB that I own, the power hog is the microwave, believe it or not. This one has an 8,000 btu household style window unit air conditioner and it only pulls 7.5 amps, running. The microwave sucks down 11.5 amps.

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Old 06-29-2014, 06:07 PM   #30
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Yamaha and Honda both make a light weight genny (2800 for Yamaha, 3000 Honda), recoil start that they both say will run a 13,500 BTU A/C. I'm pretty sure Yamaha has a tri power unit, don't know about Honda.
My advice is to check the actual design and specs of the brand and size you choose to buy. I know a lot of people here own Honda. They are great; however, the 2000 and lower models use a pulley and belt drive with plastic parts. The larger Hondas do not. This may not be a big deal to some but direct drive gears are better. So, if you are buying a smaller unit I would definitely go with a Yamaha. I know that the 2000 and the 2400 are direct drive, I do not know about the 1000 watt model. Thing is, everything can change so check the details. Also, there are specific units that are designed to operate motors. This is more critical for smaller units but a point that the unit has a reserve beyond its advertised size for a burst of power.

Check my link on the propane snorkel. That is available for many brands of generators. The way that was done before was to drill into the carb- not so now. As far as problems go. The gentleman as US carb told me that it was rare to have issues (the drilling method) but the new method took that away.
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Old 06-29-2014, 06:39 PM   #31
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I did go to the Snorkle site. They were quite informative. However, I am puzzled about one thing. The Yamaha that I think would work for me (it has to fit under my hard tonneau cover) is the EF2800i. However, they show a EF2800iQ. What does the Q mean? I can't find it on the Yamaha site.
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Old 07-01-2014, 08:23 PM   #32
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Best recommendation for genset is Honda 3000is. If you convert it to lp you will void the warranty. Not worth the chance.


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Old 07-01-2014, 09:03 PM   #33
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Anyone know if/how being in higher altitude would change the burn rate, efficiency, and output available on the gennies, how much, at what altitudes, and differences between propane and gasoline would impact in this scenario?

Good news is one rarely needs AC in high altitude. But might want to run the heat pump if that were available, and also coffee, microwave, etc.

I don't really need to know, I merely thought of it so am wondering?
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Old 07-02-2014, 01:15 AM   #34
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I'm sure it would, but me living in Georgia, I have no idea how much it would affect it.


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Old 07-02-2014, 07:05 AM   #35
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TerryV, I am not sure but I do not believe Airstream would install a generator in the trailer. Someone else on this comment?

Airstream DID install Onan generators in a handful of 1972 models. To my knowledge, those were the only factory installed generators in any Airstream travel trailers. My father owns one of them, a '72 Sovereign International. They were a propane powered battery charger more than a generator, and were 12-volt only. Neat gizmo, but more or less useless only running the 12-volt side of things. The other downside to it was the fact that it was mounted under one of the street side rear twin beds next to the water heater. Imagine putting a mattress on the hood of a large riding lawnmower, and you will have a pretty good idea of the noise level.
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Old 07-02-2014, 08:13 AM   #36
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they show a EF2800iQ. What does the Q mean? I can't find it on the Yamaha site.
Terry, call them. I am sure they know. There are two types of 2800 a GFCI and non GFCI model. They are very helpful. The 2600i ,2800i and 3000i are open frame models, a little louder. Note too there is the 3000seb. Get a look at that 2600 model price! It has the same motor as the 2400, is heavier by 20 lbs. The noise factor is the only real drawback I can see being open framed. That is about half what I paid for a 2400. I would probably stay with the encased units. Although it does have the 30 amp plug and offers 2300 watts continuous. hmm.

What makes the snorkel so nice is there is no drilling done.

So, AS did install generators. hmm.

Altitude and temperature impact LP. In higher altitudes there is something called derated propane and orifice adaptation- just looked it up.
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Old 07-02-2014, 09:04 AM   #37
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You got a photo of that thing outside the trailer? I see what looks like automotive alternators.

Perry

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Originally Posted by J. Morgan View Post
This is not field tested yet so I haven't really posted it up on the forum.

This one runs on LPG and is mounted up in the spare tire well of my 72 Sovereign.

It is shop tested, and it seems like it will run everything in my trailer when used with my inverter.

It is by no means off the shelf. Attachment 215074


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Old 07-02-2014, 03:43 PM   #38
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Airstream DID install Onan generators in a handful of 1972 models. To my knowledge, those were the only factory installed generators in any Airstream travel trailers. My father owns one of them, a '72 Sovereign International. They were a propane powered battery charger more than a generator, and were 12-volt only. Neat gizmo, but more or less useless only running the 12-volt side of things. The other downside to it was the fact that it was mounted under one of the street side rear twin beds next to the water heater. Imagine putting a mattress on the hood of a large riding lawnmower, and you will have a pretty good idea of the noise level.
They were still listed as an option in 1975. I don't recall ever seeing one installed though.

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Old 07-02-2014, 03:55 PM   #39
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I used to own a SOB diesel motorhome with an LP genny.
Pros:
Quiet
Nearly maintenance free
Fuel does not go bad
Cheaper than diesel genny
Cons:
More expensive than gas genny
Less efficient than diesel genny

For a trailer with a large LP supply it would seem an ideal solution.
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Old 07-02-2014, 08:44 PM   #40
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They were still listed as an option in 1975. I don't recall ever seeing one installed though.



Aaron

I'll be parked next to his next week. I'll try to get some photos of it and post them here.
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Old 07-02-2014, 08:47 PM   #41
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owned one

Had a propane gen fo 10 yrs never failed to start never gave a problem I loved it. (Ownan)
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Old 07-06-2014, 10:36 PM   #42
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This is a shot of the generator outer cover for the factory installed generator on Dad's '72 Sovereign. The original outer door for the water heater butted against the right hand edge, but was sealed off when he installed a tankless heater a couple of years ago. Click image for larger version

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