{"product_id":"alton-thermofor-classic-roof-vent-auto-opener","title":"Alton | Thermofor Classic Roof Vent Auto Opener","description":"\u003cp\u003eThe Thermofor Classic Roof Auto Opener is a simple, reliable way to keep your Alton greenhouse properly ventilated, without any manual effort. Designed specifically for Alton greenhouse roof vents, it uses a heat-sensitive, oil-filled piston that automatically opens the vent as temperatures rise, helping create a healthier growing environment for your plants.\u003c\/p\u003e\n\u003cp\u003eAs the greenhouse warms, the piston expands and gently lifts the vent. When temperatures cool, the vent closes on its own. You can easily adjust the opening range between 59°F and 77°F to match your growing conditions. The piston is included and ready to install.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAutomatically opens your roof vent as the greenhouse heats up\u003c\/li\u003e\n\u003cli\u003eHelps protect plants from overheating by improving airflow\u003c\/li\u003e\n\u003cli\u003eNo electricity or batteries needed, fully powered by temperature changes\u003c\/li\u003e\n\u003cli\u003eEasy to install, compatible with most aluminum and wooden greenhouses, clamps onto many aluminum frames\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdding an auto opener is one of the easiest ways to stabilize greenhouse temperatures and get the most out of your roof ventilation. It works quietly in the background, responding naturally to heat, so your plants stay comfortable even when you’re not around.\u003c\/p\u003e\n\u003cp\u003eThe operating temperature can be adjusted to suit seasonal needs or specific plant requirements.\u003c\/p\u003e\n\u003cp\u003eBacked by a two-year warranty for added peace of mind.\u003c\/p\u003e","brand":"Alton","offers":[{"title":"Default Title","offer_id":47355022672021,"sku":"ALTTHAUTO","price":119.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0097\/9959\/8140\/files\/thermofor-roof-vent-opener.jpg?v=1778811597","url":"https:\/\/mygreenhousestore.com\/products\/alton-thermofor-classic-roof-vent-auto-opener","provider":"MyGreenhouseStore.com","version":"1.0","type":"link"}