I'm a big fan of cold weather camping, and my new (to me) 77 K5 will be perfect for this. One thing, however, is that it gets cold, and my blazer gets 6 mpg right now; as a result, running the heater is not an option for warmth. I'd like to install some sort of catalytic heater in the back, propane fueled.
1: are there any catalytic heaters designed to be installed in vehicles for such a purpose (auxilary heat)?
2: Am I going to need crazy safety devices to meet DOT standards?
3: Bad idea, good idea?
I've been cold-weather camping for many years - out of Suburbans and K5 Blazers - sometimes in below-zero weather. I've experimented a bit. I hate the standard LP furnaces since they waste an awful lot of fuel and send much heat out the vent and draw DC power. There are two basic types of LP heaterers that are flameless, don't need any electricity, have low-ox shutoffs, just about no CO emmissons, are are certified as safe for camper use (as long as you leave a window open a crack somewhere). Best buy seems to be the Mr. Heater Big Portable Buddy. It will run on a pair of the little LP cans, or off a big 20lb., 30 lb., or 40 lb. mounted outside somewhere. It is a plaque type heater - not cataylitic, but just about as safe. I bought and extra heater on sale last week for $115.
For a true cataylitic heater for the same type of use is the Olympian -but it IS EXPENSIVE. Too much for my taste. Some info is at:
http://www.rvstuffusa.com/wave3catalyticsafetyheaterbyolympian.html
All my Suburbans and K5 Blazers are diesels. So I average 16 - 24 MPG. At some point I'd like to install a diesel-fired heater that taps into my fuel tank. They also make them that tap into a gasoline tank. Espar - for one. But - again - the cost is rediculous - usually starting over $1500.