Alton | Automatic Louvered Window Opener RADIANT HEATING it is important to achieve

it is important to achieve a good seal on your bag

Designed for a MONT 8x12 greenhouse

then use the sliding door in the outer wall section to enter and exit

Heating Output: 1500w / 5118 BTU

Each one takes two full panels on the greenhouse

Alton | Automatic Louvered Window Opener RADIANT HEATING it is important to achieveLouver windows help the ventilation of a greenhouse. Adding an Alton Automatic Louver Opener will help regulate the airflow automatically when temperature changes. Automatic attachment for a Louvre vent, fits most louvres. Its fully adjustable to open over a range of temperatures between 59 77 degrees F. Some drilling is required to fit. Please note that an auto louvre CANNOT fit a louver which is directly left of an a frame when you look at it