Roof vents, HFGH

12 years ago

Situation: I installed two HF automatic solar "window vent openers" last summer, and the heat killed them. The Specs indicate that the maximum temperature is 122 F. I obviously wasn't paying attention, because the temperature at the top of my greenhouse will at times exceed 122 F.

I have spent considerable time searching the web for vent openers that will operate or at least won't be killed by temperatures exceeding 122 F, with no success.

I'm set up (computerwise) so that I could control a motor operated system. However, a vent opening system that cost more than the greenhouse would be rejected out of principle even if I could afford it.

Your ideas, comments, and better yet, your designs will be greatly appreciated.


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