badflash they do appear to be what i'm looking for, i sent off an email requesting a catalog, the reason i'm going with the coal stove for heat is the extended burn time. coal can be banked back and burn 10 to 12 hours per load, plus i bought the stove might as well use it. bio-diesel your way out in front of me on that one,not that i'm not interested, my 84 diesel rabbit with 200,000 miles probably won't know the difference.jackalope the green house is metal so i won't have that problem,but if i expand i will move in that direction. i'm looking for a 100,000 btu propane pool heater, i figure in a pinch that will be my fail safe on the big tank, has anyone any experience with these? i saw the post for spa heaters,that may be how i go in the basement. well it will only get done if it's good and cheap, because that's about my operating range right now.
thanks