birdcreeker wrote:Thanks for the info. Do the Onan generators work well? Hooking it up will be a challenge. Any ideas of the best places to buy.
I wasn't super impressed with the new one I had installed (to replace the original one). It was sometimes hard to start, and it burned some oil - not a lot, but enough that I had to watch it. And if it was a bit low on oil, it would stall while I was on the road, on hills, killing the rooftop air conditioner, and I had no way to restart it from the driver's seat. It was also a lot louder than an inverter generator like the Honda EU series or the equivalent Yamaha or Champion models.
But...that said...it's still the best (only!) option if you want it built in. I think if I had it to do over, I'd probably install one again and just be a lot more religious about checking oil and all.
To install one, you'll need to wire up a transfer switch, a 12 volt power line, a starter connection, a fuel line, and an exhaust.
They came with an automatic transfer switch that was mounted under the couch, and that probably is the easiest option - otherwise it needs to be mounted where you can access it.
The 12 volt line powered the starter. Also, the generator had to see 12 volts on that wire while it was running or it would shut down. Obviously you'll want constant power.
The remote starter connection is optional. There's one on the generator, and then usually one installed above the sink inside the van so you don't have to go outside to start it. To make life easier you could run it to the panel under the couch or something like that.
Fuel is obvious; mine was plumbed into the supply from the front tank. If you only have one tank, they're usually plumbed so that it won't draw the tank down below a third so you can't strand yourself with the generator. However, I'm pretty sure Airstream skipped that precaution and just connected them to the Ford fuel system.
Exhaust is pretty obvious, you buy a kit, drill a hole in the cabinet, and route it outside; the usual exhaust location is right in front of the left rear tire.
When I had mine replaced, I took it to a Cummins/Onan dealer near here. I assume an RV place that sells them could do the installation as well. As I recall the generator installed (note, I was replacing one, so they didn't have to run new wiring) was somewhere around $2200.