I started in 1978 with and old Ashley. It looked like old oil heater, brown enamel metal encloser with a tin fire box that had some cast grates. I heated an old 18 sq ft farm house with 6 cord (I think). It really didnt work to bad. it saved me about $40 month in gas. I repalced that with a steel stove called a Hutch Rebel. anyone remember those? I think it used about the same amount of wood