The LVR 110V operable vent system is mercury free and designed to work with many style greenhouses.
LVR Automatic Vent Opener - Tubular Glazing Bar Attachment
LVR Automatic Vent Opener - I-Frame Glazing Bars Attachment
The LVR Automatic Vent Opener is fastenened to the structure's glazing bar(s). Before purchasing the LVR Automatic Vent Opener, you'll need to identify which type you have: I-Frame or Tubular?
Below are examples of the differences:
Tubular Glazing Bar Example:
I-Frame Glazing Bar Example:
We have been building Lord and Burnham greenhouses for over 40 years.
We sell motors that can operate many different types of greenhouse vents.
We provide custom size greenhouse glass, and stock many standard sizes.
We hope you enjoy some of our greenhouse photos we've accumulated in the last 40+ years.
Greenhouse Projects