{"product_id":"smartvent-auto-vent","title":"SmartVent Auto-Vent Window","description":"\u003ch2\u003eThe vent that already knows what to do\u003c\/h2\u003e\n\u003cp\u003eSmartVent gives your greenhouse a mind of its own. The wax-piston actuator opens the panel automatically when the internal temperature climbs around 22 °C, and closes it as the air cools. No power, no app, nothing to plug in.\u003c\/p\u003e\n\n\u003cp\u003eIt means your seedlings are protected from scorching on a hot April afternoon, even if you're at work. It means you don't have to remember. For allotment holders who can't visit daily, or growers of heat-sensitive crops, it's the most sensible upgrade you can make to a NORDIC greenhouse.\u003c\/p\u003e\n\n\u003ch3\u003eSpecification\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame\u003c\/strong\u003e: Swedish pine from sustainably-managed forests, 930 x 540 mm, factory-treated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePanel\u003c\/strong\u003e: 4 mm CrystalLight polycarbonate, screw-fixed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHinge\u003c\/strong\u003e: top-hinged — opens outward and upward\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActuator\u003c\/strong\u003e: wax-piston, opens around +22 °C, fully open by +25 °C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower\u003c\/strong\u003e: none required — purely mechanical\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePre-cut timber battens (3 x 930 mm + 2 x 540 mm)\u003c\/li\u003e\n\u003cli\u003e4 hinges, 1 wax-piston actuator, 6 brackets\u003c\/li\u003e\n\u003cli\u003e60 screws (40 wood + 20 panel)\u003c\/li\u003e\n\u003cli\u003eStep-by-step illustrated installation guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eReplace any standard roof panel of your NORDIC greenhouse with the SmartVent unit. You choose the position. Two-person job, around 30–45 minutes per vent. No power tools needed beyond a screwdriver.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently asked\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eAt what temperature does it open?\u003c\/strong\u003e\u003cbr\u003eThe wax piston begins to expand around 18 °C and is fully open around 22–25 °C.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it require electricity?\u003c\/strong\u003e\u003cbr\u003eNo. The actuator is a purely mechanical, heat-activated system. Nothing to plug in.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I fit this to a SteelRoot greenhouse?\u003c\/strong\u003e\u003cbr\u003eThe current SmartVent is sized for the NORDIC range. SteelRoot compatibility is in development.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I adjust the opening temperature?\u003c\/strong\u003e\u003cbr\u003eThe mechanism is pre-calibrated for the 18–25 °C range. It is not user-adjustable.\u003c\/p\u003e","brand":"Waldenhaus","offers":[{"title":"Default Title","offer_id":53336154636630,"sku":"ACC-NORDIC-SMARTVENT-01","price":99.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/5380\/3862\/files\/wh-nordic-smartvent-window.jpg?v=1780426949","url":"https:\/\/waldenhaus.uk\/products\/smartvent-auto-vent","provider":"waldenhaus","version":"1.0","type":"link"}