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Scuba_Dave · 02-18-2010, 05:32 PM

Good info, my greenhouse is partially below ground
I'm digging down around the edges & putting insulation around the perimeter
I have one wall that is up against the house foundation
If I ever get ambitous maybe I will excavate it fully & do the rock trick
Of course thats further South then I am
Not sure how the winter compares...but I'm around a zone 6 too

02-18-2010, 05:32 PM	#3 (permalink)
Scuba_Dave Location: South of Boston, MA Find me on the map! Zone: 6-7 Name: Dave Join Date: May 2009 Posts: 732 BananaBucks : 67,329 Feedback: 0 / 0% Said "Thanks" 501 Times Was Thanked 1,218 Times in 451 Posts Said "Welcome to Bananas" 2,414 Times	Re: "geothermal" greenhouses Good info, my greenhouse is partially below ground I'm digging down around the edges & putting insulation around the perimeter I have one wall that is up against the house foundation If I ever get ambitous maybe I will excavate it fully & do the rock trick Of course thats further South then I am Not sure how the winter compares...but I'm around a zone 6 too