Heating solutions

[Jpav]

I am looking for heater for my Thomas short bus. So far the webasto (air or coolant) dieselheater and a direct vent propane furnace sound like the best choices. I don't have a house batterie system so I don't know if the webasto would be the best choice. Is it possible for the webasto to run for about 15 hours off of my starting batteries? The propane furnace sounds nice but is much bulkier than the webasto and requires a second fuel. On the other hand not requiring electricity is a positive. If any body has experience or knowledge on either I would love some input. Or if anybody has a better solution please tell. Thanks.

[Twigg]

I'd strongly advise installing at least a basic DC system and deep-cycle battery.

Relying on your starting battery for anything other than starting the engine will, at some point, end in tears.

[cadillackid]

definitely install an isolated battery .. even if you just charge it with the alternator and not a fancy charging solution.. that way if you kill that battery you can still start the bus and recharge it with the engine if need-be..
its not that expensive to install even one or two batteries and an isolator device.
-Christopher

[Tango]

They are called "starting" batteries for good reason. They are not designed to be drained over a period of more than a few seconds at a time. You can, however, install one of the new combination start/deep cycle units for your start battery and get a little more out of it. But...I'm with Twigg...the only right way to go about running any house electrics is off of a house battery or battery bank.

[Dapplecreek]

Ditto. And that way, if (when) your inverter gives up you can say, "Huh. Guess that was too much draw. Guess I better lighten up my use...". And you'll still be able to start up the bus.

[Jpav]

Ok well thanks for the suggestions, i suppose i better listen to those who know better than I do.