Ian, 

I like Kohler too, but, last time I checked, you needed  at least 
the 15KW model to get an enclosure, 1800 rpms and an onboard alternator. 
The Backwoods Solar Catalog recommends the Kohler 10ERG. 
It may not be available with an enclosure. According to them, it's 
classified as mobile, so, no UL listing though you can get a warrantee.

Whatever, be sure the dealer knows it's offgrid if you want the warrantee.
Otherwise, if there's a problem, they may claim, "But it's only for grid backup
use".
It's happened to one of my clients. We have a weasel here who moved from 
selling weedwackers to being a dealer for Kohler. He knew it was offgrid. 
Doesn't say much for Kohler distribution.

All stationary generators are STATIONARY. If you need service, they come to you.
Make sure you've got a good dealer/service setup.

I've heard good things about Lister-Petter Hawkpower Propane Generators, but was 
advised to avoid the smallest units because of vibration issues. I've no
experience with them.
No experience with Onan either.

Honda, Robin-Subaru and Yamaha now make inverter type generators up to 6500
watts, still
probably too small for two Outbacks. They are three wire start. 
I believe all of them have to be converted to propane by third parties
(warrantee implications?). 
We're fortunate to have a local guy who's good at that. I've had good luck with
Honda and Yamaha.
I drive a Sube:-)

Dick
Solarwind Electric
Bradford, VT 

--- You wrote:

A client with a remote off-grid system and two OutBack FXs is looking 
for the right generator to buy.

He prefers propane because they already have it on site.

Any recommendations?

Thanks,

Ian
--- end of quote ---

