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I have wanted a greenhouse for as long as I can remember. I live in MN so the aspect of heating is rather daunting-especially with the price of oil going up as it is. My question is this: if I manage to find an affordable heating system, how do I get the door open to go in without losing all the heat? When it's -10 here, I would think that opening the door for even a minute or two could drastically lower the temp in a small greenhouse. I guess you could have a little entryway, but would that be enough to keep the heat in on really cold days?
Another question comes to mind, my yard is very shady-the only places where a greenhouse could go are on the north or northwest side of the house where there is very little sun-would it even be possible to have a greenhouse under these circumstances?
Thanks-
Deb
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