I think the option of a hanging a Hot Dawg or Big Maxx using 100lb propane tank till your able to convert to NG is the way to go. I'm using a 30,000 BTU propane Mr. Heater Blueflame I purchased from TSC for $149.00 to heat appx. 1000sf w/ 10.5 ft. ceiling. It's taking the chill of nicely in a...