Top 6 Best Greenhouse Window Openers

Suitable for Most GreenhousesThis opener will automatically open and shut your greenhouse window to maintain the best growing temperature and preventing your greenhouse from overheating. Quality Construction Reliable, quality built anodised aluminium automatic window opener for greenhouses.. Working Conditions Start to open - 15c - 25c 60-77F Fully open temperature 35 19f or above Fully open distance 45cm 18. Environmental friendlyNon Electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops.. Ideal for Your Greenhouse WindowThe greenhouse window opener can be clamped onto or screwed onto your greenhouse frame, opens and closes your greenhouse window..

AUTO WINDOW OPENER--As the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating.. DOUBLE SPRING--Double spring mechanism protects against wind gusts. The Automatic vent opener is appropriated for most of the current garden greenhouses.. PREMIUM QUALITY--The window opener is made of high quality aluminum alloy. Durable and rust resistant in damp environments Long service life.. EASY TO INSTALL-- We have attached an Installation manual, and there is video in listing for your reference. There is two ways to install 1. Clamps to greenhouse bars, no drilling needed. 2. Screw directly into polycarbonate panels, wood, or metal frames.. MAXIMUM OPENING--Approx. 30. Maximum window opening 45 cm. lift up to 15lbs. If you have any questions, please don't hesitate to contact us..

Solar Vent Opener can lift up to 15 lbs. Starts opening between 55 - 75F, depending on how you have adjusted the vent.. Screw directly into polycarbonate panels, wood, or metal frames..

Aluminum and Stainless steel material for durability.. Two springs are more strong and better withstand Wind.. Great trouble free dual spring design.. Easy to fit onto your Greenhouse vent or window using supplied screws and clamps or your own fasteners into pre-punched holes.. Best for awning style windows.Uses Solar energy only, no power required..

HIGH QUALITYAll parts corrosion resistant. Spring controlled - Resists wind damage when opening and closing. When temperature above 2577F, the window opener will keep opening.Fully open temperature at 30 86F or above once temperature drop to about 1559F, the window opener will totaly close.. NON ELECTRICUses solar energy, open or close the greenhouse vents as temperature rises or drops and clamps to greenhouse bars - no drilling needed quality construction.. APPLICATIONMaximum window opening approximately 45cm18'', depending on adjustment and load. Window roof vent opener Suitable for greenhouse window up to 7kg if more than 7kg, we recommend you to use two window opener.. AUTOMATICThis opener will automatically open and close your greenhouse window, as the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating.. NOTICE Do not apply excessive loads by locking or covering window.The automatic ventilation window opener in the greenhouse cannot be used in an environment with a temperature higher than 50.

Opens automatically when temperature rises. Installs quickly and easily. Simple, oil-filled cylinder, no power needed. Replaces manual vent arm.

Premium Quality-- This Automatic Window Opener is made of quality built anodised aluminium.The paint spraying aluminum frame looks more lustrous, durable and rust-proof.. Greenhouse Automatic Vent Opener-- As the temperature changes,This auto thermo for window will automatically open and close your garden greenhouse vent to maintains the best growing temperature and prevents your greenhouse from overheating.. Environmental friendly-- Non electric, uses solar energy,open or close the greenhouse window as temperature rises or drops. This solar heat sensitive auto vent opener can lift up to 15 lbs. The cylinder closes well before deep freezing and opens again without problem.. Working Conditions--Start opening at 15C-25C 59-77FFully open temperature at 30 86F or aboveFull opening distance 45 cm 18 inches.The greenhouse automatic roof vent opener kit will shut down completely when the temperature drops to bellow 59F 15C.Up to Load Capacity7-15kgs15-33lbs.. Warm Tips-- Do not use this automatic roof vent Opener lifts anywhere the temperature will exceed 45 122F. If you want to use this greenhouse autovent vent opener with the Palram greenhouse, you need to use the drilling tools to screw into the channel and fix it..

Suitable for Most Greenhouses Up to 15lb load-bearing capacity, JINGOU automatic greenhouse vent kit is suitable for most greenhouse. Automatic OpeningClosing The greenhouse window opener automatically opens and closes through the thermal induction of temperature, it does not consume any power, energy-saving and environmentally friendly.. Working Condition When the temperature exceeds 77F 25C, solar vent opener will open. When the temperature drops to 59F 15C, the greenhouse kit will shut down completely. Excellent Quality JINGOU automatic greenhouse vents are made of zinc-coated steel, durable and anti-rust, it has a long service life. Easy To Install Vent opener greenhouse equipped with screws, screw it into the panel , wood or metal frame directly with a screwdriver, simple and convenient.

1.Thicker and stronger material with 2-spring type, suitable for windy mountain area, resist wind twist.. 2.Aluminium and stainless steel material, No worry corrosion.. 3.Solar energy sourced, no operating cost, environmentaly friendly.. 4.Both Clamp and screw for easy installation.. 5.Pack well for shipment.

HIGH QUALITY MATERIALS-Made of high quality of aluminum and stainless steel.Durable and no rust.. NO ELECTRIC POWER NEEDEDAUTOMATIC-Solar powered , automatically open or close the greenhouse vents as temperature rises or drops.. DOUBLE SPRING-Double spring type, suitable for windy mountain area, resist wind twist.Stronger Force,lifts up to 15.4 Lbs7kg.. EASY INSTALLATION-Comes with a fitting accessory pack and a detailed manual for easy installation.. OVERHEATING PROTECTION-This automatic window opener will help you maintaining the best growing temperature and prevent your greenhouse from overheating..