Hey everyone! I have a shop in the Tri Cities area and it stays pretty darn cold in the winter. Its an 80x60 cinder block building that is poorly insulated. We ran a MEN type heater back in 2010, then converted it to an Ozzirt style last year. The Ozzirt design is probably the best a drip feed can get. The two stage setup burns nice and clean until my friend wants more heat and cranks up the feed lol. It will burn with a light grey smoke and zero soot at around 450 degrees and can ramp up to 600 on a good batch of oil mixed with diesel. We have a few problems with the lower chamber not sealing well as well as oil pooling occasionally causing it to "run away" to 800 degrees or so and smoke the place up a bit. We work on cars so exhaust doesn't bother us, but we do have to air the place out which sucks on a 20 degree night.
When the oil burner and wood stove are running good it stays in the high 60 with the outside temp as low as 15!
