Thermofor Automatic Greenhouse Window Roof Vent Opener

90 palram automatic roof vent opener 4 out of 5 stars 302.

Thermofor automatic greenhouse window roof vent opener.

Ensure that the greenhouse window opens freely and is not obstructed. Our products range from the heaviest duty to the most economical. This model is an attractive cost effective unit with a unique opening action ensuring a smooth twist free operation and with the cylinder mounted within the racket to eliminate projection in the greenhouse. Thermofor automatic greenhouse roof window opener autovent.

This opener is the latest in a line of thermofor roof vent openers designed and supplied over the past 50 years. Hd3200 this opener is the latest in a line of thermofor roof vent openers designed and manufactured over the past 70 years. This model is an attractive cost effective unit with a unique opening action ensuring a smooth twist free operation and with the cylinder mounted within the bracket to eliminate projection in the. Upgrade for the greenhouse to help regulate the temperature during the summertime.

It is finished in a durable polyester powder coating and is corrosion resistant throughout. Thermofor automatic roof vent opener used in greenhouses. Automatic roof vent opener cat no. Before fitting remove existing window casement stay and fittings from window and frame.

7 triple spring mk. Automatic roof vent opener. Automatic vent opener vent l n01 opening temperature 75 90 f of greenhouse load up to 220lb for window doors 4 7 out of 5 stars 6 42 90 42. Greenhouse vents auto vent openers louver windows shutters roof vents.

This model is an attractive cost effective unit with a unique opening action ensuring a smooth twist free operation and with the cylinder mounted within the bracket to eliminate projection in the greenhouse. Approximate arm length is 11 inches. If necessary lubricate moving parts with thin oil. The release catch allows manual opening and closing of the louvre irrespective of greenhouse temperature.

This opener is the latest in a line of thermofor roof vent openers designed and supplied over the past 50 years.