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Open Roads Forum  >  Tech Issues

 > convert gas generator to propane

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MrWizard

Traveling

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Posted: 01/12/19 03:39pm Link  |  Quote  |  Print  |  Notify Moderator

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Most homes provide low pressure natural gas or low pressure propane. This kit does not support high pressure propane that comes from a tank. Adapters will mix the Propane or Natural Gas into the air stream above the gasoline carburetor. The gasoline carburetor remains basically untouched.


going to need a regulator between the LP tank and this KIT


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road-runner

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Posted: 01/12/19 04:43pm Link  |  Quote  |  Print  |  Notify Moderator

OP, I actually do have something possibly helpful. Try your question in the Smokstak Onan forum. This is the biggest repository of Onan information I'm aware of, and it's definitely more propane friendly.
https://www.smokstak.com/forum/forumdisplay.php?f=1

If I were doing this my instinct to use the actual Onan propane carburetor and associated parts. There's a greater possibility of finding some actual experience over at Smokstak than there is here.


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bobsallyh

Livingston, TX.

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Posted: 01/12/19 04:50pm Link  |  Quote  |  Print  |  Notify Moderator

Mr. Wizard, there are numerous 5vers with Onan propane fueled generators in the U.S. No telling how many are sitting in Quartzsite, AZ.as I type this.

nightshift

Vancouver, BC

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Posted: 01/12/19 04:57pm Link  |  Quote  |  Print  |  Notify Moderator

If you're going to convert to propane, get an extand-a-stay kit. Propane gennys suck fuel like there's no tomorrow.

MrWizard

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Posted: 01/12/19 05:43pm Link  |  Quote  |  Print  |  Notify Moderator

bobsallyh wrote:

Mr. Wizard, there are numerous 5vers with Onan propane fueled generators in the U.S. No telling how many are sitting in Quartzsite, AZ.as I type this.


do these 5evers use 20# portable cylinders/bottles

or do they have frame mounted tanks ?

class A , i have seen with LP gennys, all have frame mounted tanks, so they more fuel capacity, my DP carried over 100# of LP, that is still only 20+ gallons and not as quick and easy to come by as gasoline
and 3 days of 100+ temps required an LP refill

apparently this is NOT the OPs concern, but it is for many other people

Of course wintering in Q, Az one does not really Need A/C
just the ability to use cooking appliances and recharge batteries

it helps to keep things in perspective
as for the OP, it seems his main concern was in NOT using his genny,
and the carb being gummed up and the fuel going bad, when he did want to use it
(2) things that are fairly easy to avoid, without changing over to LP

i hope smokestack provides him the info he is seeking

bobsallyh

Livingston, TX.

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Posted: 01/13/19 09:58am Link  |  Quote  |  Print  |  Notify Moderator

MrWizard, they simply tap into the onboard low pressure system. Most fivers have either 30's or 40's. I didn't want propane on our worthless Onan, but instead have an 18 gallon onboard gasoline tank. But I sure would like to have a dual fuel system set-up, just for choice. LP sure isn't as efficient running a generator nor is it as readily available as gasoline as you stated.

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