Thermofor Automatic Heavy Duty Greenhouse Window Roof Vent Opener

A great way of preventing greenhouses from overheating.

Thermofor automatic heavy duty greenhouse window roof vent opener.

Many of the automatic vent openers that we examine below are capable of being screwed directly into panels of polycarbonate metal frames as well as wood. It is finished in a durable polyester powder coating and is corrosion resistant throughout. This model is fitted with a heavy duty double spring mechanism designed for use in exposed locations or on lightweight polycarbonate glazed vents which do not have sufficient weight to prevent the wind opening the vent unintentionally. Automatic openers automation of both roof and side louvre vents are an excellent and hugely popular choice with customers.

Thermofor heavy duty dual spring automatic greenhouse window opener hd3400 autovent automatically opens and closes your greenhouse window as the temperature changes. Greenhouse vents auto vent openers louver windows shutters roof vents. 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 bracket to eliminate.

How to choose an automatic opener for your greenhouse 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. This model is fitted with a heavy duty double spring mechanism designed for use in exposed locations. 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.

Automatic roof vent opener cat no. This quality greenhouse vent opener automatically opens and closes your greenhouse window as the temperature changes. Automatic roof vent opener. Keep your greenhouse cool and your plants healthy with our selection of greenhouse roof and side vents automatic vent openers poly side and endwall venting and aluminum shutters.

This opener is the latest in a line of thermofor roof vent openers designed and supplied over the past 50 years. Thermofor automatic greenhouse roof window opener autovent. Complete kit ready to install with easy to follow instructions. Hd3200 this opener is the latest in a line of thermofor roof vent openers designed and manufactured over the past 70 years.

Offering peace of mind when you are at work or on holiday ventilation is provided automatically via a solar powered wax cylinder which opens or closes the vent when the temperature inside the greenhouse reaches a certain. 7 triple spring mk.