mazak500, I did some quick math to answer your question. My sunflower heater puts out 8,000 BTUs/hr on low and 15,000 BTUs/hr on high. Propane has roughly 22,000 BTUs/lb. So a 10 lb tank has 220,000 BTUs. So, on low a 10 lb tank would last 27.5 hrs and on high it would last 14.7 hrs.
ndmlotw
Posts: 2