Yes I have started on it. I put a small electric water heater (4 gallon) on it. it works minimally on warmer nights (above 45 it keeps it around 60 degrees). right now I am shopping for a propane water heater around 30 gallons or so. the electric ones just don't have a fast enough recovery rate. I put a small 1500 watt oil heater in ther with it at it is making up the difference for now.