Has anyone used a greenhouse all year in a Zone 7B? I am wondering if shade cloth. venting and heating is all I would need or should I go further and look at ground heating/cooling? I get around 5 to6 hours of sun in this location.
I have a high water table but also a lot of boulders just below the surface (2 to 3 feet). Summers are brutal June through August and there is a short winter where a couple of weeks it gets around 20F or lower.
I am willing to spend a couple thousand to build something that will last and maybe keep insects out and am looking for innovations. Air to water heat exchange or other?
How to make this work?
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Hi Dennis, I'm guessing many people have greenhouses in your climate. I saw a tropical greenhouse on youtube in Texas that seemed pretty simple (from a mechanical systems perspective). I guess the biggest question is how warm do you want it on your coldest night and how warm do you want it on your hottest/sunniest day? That could help generate some ideas. If all you need is 33 degrees on the coldest night, I'm guessing some thermal mass and a double inflated poly hoop house would do the trick.
Keeping insects out could be trickier. My greenhouse vents in the summer so the bugs come and go as they please.
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I think shade cloth plus moving air (natural breezes or fan) should keep it reasonably cool in summer. Am in 7a and have a neighbor who keeps a greenhouse with a fan that way - have been in it and it is bearable.
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