[mockingbird812]

Damien - it is kind of a guess at this point. I filled it up for about $160-. We have mild/moderate winters in Ohio, with ave temps around 35 deg F (however, last winter saw us below 0 deg F on several occasions [img]<<GRAEMLIN_URL>>/shocked.gif[/img] ). I plan to keep the thermostat at 45 deg unless I am working in there (mostly weekends and I would probably set it at 60 deg +/-). Propane guys think I will have to fill it once maybe 2/3 thru the winter. If I can get away with around $200 for the winter, I will be a happy camper. I have yet to blow in my attic insulation which will help immensely - shooting for an R38 value up there.