2018 China top new garden tools -- Temperature Control Greenhouse Aluminium window roof vent opener
Automatic machine for ventilation in greenhouse / solar powerd ventilation fan / Automatic device for ventilation of greenhouses
12 years of producing window opener experience manufacturer
Obtain own patents & brands---quality assurance
--- Both the frame and cylinder are made of Aluminum, longer using-life.
--- Even the surface was scratched, the window opener will not get rusty.
The bigger the amount is, the more favorable the price is.
---Factory Direct , Quality Assurance ---Competitive Price
---- With the automatic window openers,
-----you can be sure of an even temperature in your greenhouse day and night.
----They allow thermostatic ventilation control through the roof windows of your greenhouse.
opener / ventilation/vent opener/
1.Maximum window opening approximately 45cm/18''.
2.Maximum opening at 30-38C,depending on adjustment and load.
3.Window roof vent opener Suitable for greenhouse window up to 7kg (if more than 7kg, we recommend you to use two window opener)
4. Start open at about 20-25'C, when temperature above 25'C, the window opener will keep opening. once temperature drop to 15-18'C, the window opener will totaly close.
1.Fully automatic greenhouse ventilation
2.window roof vent opener is Easy to fit - Screws into wood and clamps onto aluminium greenhouses without the need for drilling. (Full fitting instructions supplied)
3 .Window roof vent opener is Easy to set - one simple adjustment.
4..Solar powered - No batteries or electricity required
6.Loses no headroom.
7.Anodised aluminium construction - All parts corrosion resistant.
8.Spring controlled - Resists wind damage when opening and closing.
9. Replacement cylinders of window roof vent opener are available.
1.Your window roof vent opener is not suitable for use where temperatures will exeeed 50'C/122‘F
2.Ensure that your greenhouse window is able to open and is not obstructed otherwise damage could occur.
3. Please notice! The cylinder need put in the refrigerator one night before you instal it.
Quality assurance - All parts guaranteedfor 1 year
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1.English manual or Russian manual
2. Using foam box in inner carton.
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