Bayliss XL Single Spring Vent Opener
About Bayliss Solar-Powered Vent Controls
These "top of the line" solar vent controls will open and close greenhouse vents automatically without electricity. Bayliss vent openers convert energy from the warmth of the sun into mechanical energy to open vents. The hotter it gets, the wider the vents are opened.
Bayliss solar vent openers are made from the best corrosion-resistant materials: brass, stainless steel, and satin anodized aluminum. They are designed to give many years of service, are covered by a 2-year guarantee, and can be repaired should the need arise.
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To dis-engage opener:
To disable the Bayliss opener when needed due to heavy winds or winter weather, simply unscrew the Threaded (knurled) Adjuster, remove it completely and keep the adjuster in a safe place for later use. The vent must be tied securely. You may put a zip-tie around the opener just up from the mounting brackets to lock the vent shut. When ready to engage the vent opener, cut the ties, re-install the Threaded Adjuster. Check to be sure screws are firmly attaching vent opener to the vent frame each season prior to use.