[gr8fl4porsche]

My buddies shop is heated with a commercial waste oil furnace - It was real pricey in the beginning but the backup furnace rarely comes on. I'm not sure if his is a drip system, I thought he told me the oil is injected under pressure.

He dumps anything burnable into a large barrell with a set of filters, then the oil rests for a while while any metals, etc that are too small for the filters settle to the bottom, the furnace then pumps oil from the top of the container into the furnace which is mounted 12' in the air.

He loves it and plans to buy another for an expansion plan.