Reply by ibewjon

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Posted on Heating my shop

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989 posts in 3299 days

#1 posted 01-13-2019 06:09 PM

Yes, 1” foam on the walls, then 6” studs and fiberglass, or studs, electrical, then closed cell foam sprayed in. 12” in the ceiling, minimum. The savings on the heat will pay for the insulation. I only have a 16×24 x 10’ ceiling. But with 6” walls and 12” ceiling insulation, I can heat my shop with a 4 kw in wall electric heater, but now I have installed a heat pump that is 28 seer for the AC and 14 for the heat side. It is efficient down to -14 on the heating side, and I have meters installed to monitor energy use. It costs me about 25 CENTS a day to cool and 75 cents a day to heat here near Joliet IL. Insulation is the key, but $ buy the keys. 70 degrees winter and 74 summer in the shop.

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