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txrdkng

Texas

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Posted: 07/28/10 06:24pm Link  |  Print  |  Notify Moderator

I have a Raptor 300MP and have installed a second air conditioner. I will be traveling from Texas to South Dakota next week and want to do a couple of rest stop overnighters. Does anyone know how long (hours) I can expecgt to run both a/c's, lights, etc. with my on-board generator and my 29 gal. on-board fuel tank?

4*phun*2

Canada

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Posted: 07/28/10 06:42pm Link  |  Print  |  Notify Moderator

More than a couple of nights.


Glenn & Karen
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'06 F350 4X4 Lariat CC LB DRW (nice hips) retired
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Our Toys


Manke

Shadow Hills (so-cal)

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Posted: 07/28/10 06:44pm Link  |  Print  |  Notify Moderator

For the Onan 5500, I believe the fuel consumption range is 0.4 - 0.8 gallons per hour.
If you're running both A/C's along with some lights and other stuff, let's err on the side of 0.8 gph.
That should give you roughly 36 hours of gen use time off 29 gallons.
Now, I have heard that the generator shuts off at 1/4 tank which throws a wrench in that calculation. I'm not positive, but perhaps someone can chime in and confirm that....
Have fun!


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Brodie3Az

Chandler, Arizona

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Posted: 07/28/10 06:46pm Link  |  Print  |  Notify Moderator

Plan on 1/2 to 1 gallon per hour for fuel consumption.

txrdkng

Texas

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Posted: 07/28/10 06:54pm Link  |  Print  |  Notify Moderator

Thanks everybody! Great site!

gitpicker2009

texas

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Posted: 07/28/10 10:59pm Link  |  Print  |  Notify Moderator

whoa!

Hold on there. They might be right as far as the fuel consumption goes.
The 5.5 kw onan in my Raptor runs about half a gallon per hour at 50% load.

BUT....I don't think your generator will run BOTH air conditioners at the same time.
I know mine won't, and Keystone says they're not intended to.
Especially at start up.

Try it and I'll bet it'll just blow the breaker on the generator.

Sorry,

Anthony

gitpicker2009

texas

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Posted: 07/28/10 11:10pm Link  |  Print  |  Notify Moderator

p.s. I think that part about stopping at a quarter tank is true, but only on motorhomes. I had a 1997 Fleetwood Jamboree Rally Class C with a 4K Onan, and it would shut off at a quarter tank. That was to prevent you from running your gas tank dry and leaving yourself stranded and unable to start the engine.
Not sure that it applies to towed trailers, but I would think not.

anthony

rb3500

Vail AZ

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Posted: 07/29/10 10:17am Link  |  Print  |  Notify Moderator

I usualy check for KOA or other parks on the way...about $20-$30 will get a good spot for the night and proly be cheeper than fuel 4 generator plus free water and dump

sandblast

salt lake city utah

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Posted: 07/29/10 11:44am Link  |  Print  |  Notify Moderator

rb3500: 20-30$ a night at KOA. You must be jesting!

rb3500

Vail AZ

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Posted: 07/29/10 01:13pm Link  |  Print  |  Notify Moderator

KOA might be on the higher end but last one I stayed at I payed 42 for a pullthru site ...there were backins in the 30s ....last time I went from Tucson to Reno and back i found 2 nice parks one was $26 the other was $22..I will pay a little $$ so I dont have to haul a lot of fresh/grey/black water worry about fuel in gen and have u seen the people that rome around wal-mart parking lots at night the hookers in truck stops

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