Hi, I live in MD and we had an outage last winter, and I lost a big blue discus and other fish. The only reason I did not lose my blue lovebird is that I kept him in my arm pit. We were out for 52 hours and it got to be 47 degrees in the house. Anyway, They have propane heaters for indoors, which is what I am about to buy. It should heat our whole family room. Good luck.