Automatic vent opener recommendations

East Aurora, NY(Zone 5a)

Does anyone have a preference for automatic vent openers for your ghs? A friend recommends a ventomax. Any other suggestions? Thanks.

West Bridgewater, MA

Hi,

I have Bayliss roof vent openers. These came with our greenhouse and so far we are happy with them.
Understand please that I know about 10% of what most others here know, so enter that into the calculations.
The only reason I would suspect that Bayliss is a good name is that B.C. Greenhouse blds. built the kit and I do have a lot of respect for the Co. and product.
One last note, I installed them one evening and the next morning as the GH heated up..they opened.
They are adjustable but I have not as yet fiddled with them........Thus....is the extent of my knowledge.

good luck,
keywest

Albany, OR(Zone 8a)

I love my Univent. It has the black wax cylinder. It opens auto. with heat and cold. Works wonderful.
Carol

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