Originally Posted by geordi
LP usage (and purchasing) should be metered by the gallon OR the pound. For fixed tanks it is by the gallon, for portable BBQ-bottle it can be either way but most places do it by the gallon also. Flat rate (Home Depot / anyplace that swaps tanks) is the LAST place to get a tank, they are over $5/gallon cost!
In Virginia with the temps in the teens or lower, my 30' 1990 Holiday Rambler coach with single pane glass uses about 4 gallons a week in LP if that is the only source. The 40' 2003 Monaco diesel with 3 slides ALSO uses around 4 gallons a week, and both of these coaches have a 30k btu furnace.
I actually removed the LP furnace from the Monaco and have replaced it with a diesel heater. Diesel has much more energy per gallon and doesn't try to leak out when you aren't looking at it. The little chinese diesel heater from Ebay can run continuously for about 40 hours on ONE gallon of diesel, and keep the Monaco comfortably at 70 degrees while the outside is at 20. Anyone want to buy that Atwood furnace? I don't think I'll need it anymore.
Would like to see pictures of your diesel heater install and hear more about it. Perhaps a new thread?