Oh it's going right out the flu which empties about 35 feet up
outside the barn.
Lots of heat treat/tempering info on the net. I think there
are more Blacksmithing forums than there are car forums. But
since you brought up the subject, this isn't a bad way to heat
treat a part that you might make in the lathe or mill. I had
a nice Grieve 12x18x12 electric Heat Treat oven for a while a
few years back but it was only on loan and it got sucked back
into his shop when my nephew started his new job. Then he left
it at that shop when he quit.
http://www.grievecorp.com/catalog/Furnaces/Bench-Furnaces/Bench-Furnace.html dg
