We opted for the gold 5500 LP as well and it is so quiet we can actually take a nap in the bedroom over it. We're always careful to keep the slide windows closed over the exhaust.
We did have the following problems -
The dealer pinched the fuel supply line between the propane cylinder and cabinet wall during install causing it to quit periodically and give the low pressure alarm. Of course the dealer wouldn't touch it, but Cummings/Denver found the problem immediately and charged me because it wasn't an Onan issue....long story. Check the fuel supply routing out of the regulator after the install to make sure it is well clear of the cylinder.
Having some problem now the the transfer switch overload breaker popping when I run the AC - haven't dealt with it yet. I don't think the transfer switch is an Onan product.
We hear rumors that the LP units have difficulty starting at high altitude in the cold, but we have never had trouble getting it started. The only time we have to prod it a little is right after we turn on the LP tanks after it has been stored (air in lines).
Don't know about the advantages/disadvantages between the gold and platimum, but you can't go wrong with the gold.
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2003 2955RL - 5.5KW Gen - great for the lake!
New '06 F350 Stroker towmoter in July - love the new trans shift and integrated brake controller.
'95 SeaRay 200BR named
Dam-It - occassional tow buddy
I ain't as good as I once was - but I'm as good once as I always was
- Toby Keith
Brad & Dory