My back has been bothering me too much to move my 4 x 6 plywood house around, so I've decided it's time to start using a small portable. My uncle gave me his that he made a lot of years ago and I am looking at how to heat it. Has anyone used the Mr. Heater Portable Buddy or the comparable Coleman heater. They are supposed to be safe indoors without venting.

It looks like the Coleman only uses the little 1# cylinders. Has anyone ever used the adaptors that lets you fill the 1# cylindar from a 20# cylinder?

Bruce