Anybody have a waste oil furnace? Home made?

Mike ,
I have a waste oil heater in my shop (roughly 40 x 80) 5 bays and an office. It will run you out of the shop if you put it to 75*. I keep it about 60-65* during the winter. I use oil changes, atf, some gas from fuel filters, kerosene, I do occasionally add some gearlube and have only had issues from customers oil that may have sat in their garage for a while and absorbed or had moisture seep in. I just bleed off the storage tank of water and go. Adds about a $30 price tag to my electric bill being that it has a high flow (IE:HUGE) fan to blow the air into the shop. Me and my techs LOVE IT!

BTW- it was about 6K investment initially. Turn on the thermostat and go...