Caleb Mayfield wrote:One other thing, what are you using for fuel? It needs to be really dry.
thomas rubino wrote:Hi Eric;
your "plan" on 8" surrounded by 10" with perlite (not vermiculite) in between... is this a riser? If so you might want a C.F. riser instead.
Graham Chiu wrote:Is it possible the bricks got water into them and they fractured as ice formed inside?
Glenn Herbert wrote:
I saw what looked like the long duct just buried in a trench; is there insulation under that duct? If not, you are trying to heat the whole earth which is futile, especially if there is groundwater which will efficiently carry away any heat put into the ground.