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strider3700 · 03-23-12, 02:58 AM

at my old house I had a shop 12'x24' with the long back buried in a hill with 2' of stick sticking up and 8' of concrete buried. The sides were partially bermed as it sloped down.

I didn't bother to insulate the concrete at all. I'm going to guess that the ground temperature was about 9C in winter to 14C in summer because the temperature inside never moved out of that range if the door and windows were kept closed. One day it hit 29C outside in the shade and I had left all the windows and the door of the shop open for a few days. Inside hit 16C. When I closed it up temps came back down. In the winter I used a small space heater aimed right at me. It would have been near impossible to heat the building up enough to be comfortable.

03-23-12, 02:58 AM	#3
strider3700 Master EcoRenovator Join Date: Dec 2008 Location: Vancouver Island BC Posts: 745 Thanks: 23 Thanked 37 Times in 30 Posts	at my old house I had a shop 12'x24' with the long back buried in a hill with 2' of stick sticking up and 8' of concrete buried. The sides were partially bermed as it sloped down. I didn't bother to insulate the concrete at all. I'm going to guess that the ground temperature was about 9C in winter to 14C in summer because the temperature inside never moved out of that range if the door and windows were kept closed. One day it hit 29C outside in the shade and I had left all the windows and the door of the shop open for a few days. Inside hit 16C. When I closed it up temps came back down. In the winter I used a small space heater aimed right at me. It would have been near impossible to heat the building up enough to be comfortable.