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Old 05-12-2015, 06:16 AM   #1
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Red face Will Onan 4000 fit in my r-Vision Trail Lite

Dimensions of Onan 4000 watt Gas Generator are listed as 30" wide, the compartment on the 2001 Trail Lite is 30x20x20.
Is the Onan actually 30" wide?
How much clearance room do they need?
Would a smaller Gas Onan (2800) power up my AC? 13,500 BTU Duo Therm, again, from 2001 so probably not energy star.

Thanks in adnvance. This is my first RV and First post.
Thanks RPT

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Old 05-12-2015, 07:19 AM   #2
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You could mock it up with cardboard & see if it would work. Look at the Honda generators. They are to beat & pretty fuel efficient.

2011 40' Monaco Cayman PBQ ISC 360
2013 Jeep Wrangler Unlimited
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Old 05-12-2015, 07:26 AM   #3
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I have been researching a great deal about this topic.
My questions are...

How many watts do I need to turn over a 2001 13,500 Duo-Therm?

I know that Honda, Yamaha and others speak very highly about the portables and I am not ruling them out.

The onboard Onan with remote start is of interest due to convenience.

The noise factor is also in the equation.

If the Onan 2800 will get my AC up and running and keep it running, I am interested in that too.

Any other ideas and opinions are welcome.

Thanks RPT
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Old 05-12-2015, 07:51 AM   #4
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I own a 2002 Monaco Windsor with a 13500 Duotherm. The AC pulls ~17 amps at startup then drops to 13-14 while running.

17amps X 120volts = 2040 watt for startup
14 X 120 = 1680 watt running

If the generator has a rating of higher then 2040 watts (plus some for safety) then is should run the AC.

Note that the AC units have starting capacitors that reduce the startup load. If the capacitor is bad it will pull higher amps (~+25 amp). You can add a hard start capacitor to compensate for this, if possible you should see if you can test your unit to see what it pulls at startup and just running normally.
Jim J
2002 Monaco Windsor 38 PKD
2005 Jeep Grand Cherokee w/5.7 Hemi
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Old 05-12-2015, 08:25 AM   #5
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I have a built-in 4K Onan. If I needed a new generator, I would shop Honda and Yamaha 3K units with remote start.
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Old 05-12-2015, 08:31 AM   #6
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Great information from all of you.
I like the ease of remote start. I also like the idea of the built in so I don't have to move it, however, I am uncertain about how loud the Onan would be etc.

Thanks Rocco
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Old 05-12-2015, 12:16 PM   #7
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Make sure anything permanently mounted is adequately vented to prevent CO poisoning! We hear of way too many people dying from this😔

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