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Old 03-27-2016, 01:22 AM   #1
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Adding Onan Gen Set

Has any one installed an Onan LP 5.5 0r 6.5 without having the "Gen Prep" already installed. I would assume it would be a fair job. Would need the - galvanized enclosure - exhaust system - taping into the propane system - and bringing the start wiring into the unit up stairs. Or am i kidding myself..
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Old 03-27-2016, 05:53 AM   #2
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It is possible to do. I had my dealer install the prep & LP Onan 5.5 in gen set in my 38GK. Lack of factory prep added about $600 to the install.
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Old 03-27-2016, 06:20 AM   #3
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[QUOTE=RV4us2;63688]It is possible to do. I had my dealer install the prep & LP Onan 5.5 in gen set in my 38GK. Lack of factory prep added about $600 to the install.[/QUOTE

So with this the prep is say $600 to $800 and the Gren around $5000 for a total under 6k. Could you send me the location and dealer name. BTW thankyou. We have been looking at building a 2017 due to the options we want. But this is helping to make it look good to pick up this 2015.
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Old 03-27-2016, 03:00 PM   #4
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Go online to norwall. They had the best price with free shipping. A 5.5 is around 5000. They have muffler, wiring, transfer switch.i had to get a high pressure propane line for 100.00. Does the trailer not have the tin box in it. If not Tiara Rv could help you. You need the vin# of the trailer when calling. I had an rv tech install mine for 400.00. Dealer wanted triple that amount and I had the gen prep already
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Old 03-27-2016, 05:12 PM   #5
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[QUOTE=ted 95;63690]
Quote:
Originally Posted by RV4us2 View Post
It is possible to do. I had my dealer install the prep & LP Onan 5.5 in gen set in my 38GK. Lack of factory prep added about $600 to the install.[/QUOTE

So with this the prep is say $600 to $800 and the Gren around $5000 for a total under 6k. Could you send me the location and dealer name. BTW thankyou. We have been looking at building a 2017 due to the options we want. But this is helping to make it look good to pick up this 2015.
I think what he was trying to say is he paid $600 over and above the normal install cost because it didn't have the prep.

PS - the prep does not get you the exaust or LP gas supply, only the heat shield, pre-wired transfer switch, and the remote start/hour meter. When you install with the prep you have to:
  • knock out the plates in the bottom of the cabinet for the Onan ventilation system
  • Route power (2 circuits) from the generator to the transfer switch above the heat shield
  • Route starting cables to the batteries
  • Plug in the remote start harness
  • Install a "t" and route propane to the generator
  • Install new exhaust and hangers.
Without the generator prep, you would also have to:
  • Install the heat shield
  • Install a 50A transfer switch on the bulkhead
  • Intercept the shore line power going to the breaker panel and route it to the transfer switch instead (not fun)
  • Run power (2 circuits) from the transfer switch back to the breaker panel (also not fun)
  • Install a remote start switch and hour meter near the control center and run wiring harness back to the front compartment via the ceiling over the basement.
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