{"product_id":"automatic-roof-vent-opener-hg1027","title":"Automatic Roof Vent Opener for Rion Greenhouse","description":"\u003cp\u003e \u003c\/p\u003e \u003ch3\u003e\u003cstrong\u003eDESCRIPTION\u003c\/strong\u003e\u003c\/h3\u003e \u003cp class=\"p1\"\u003eThe Automatic Vent Opener was designed to automatically control the temperature in all \u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ca title=\"rion greenhouse\" href=\"https:\/\/divetogarden.com\/collections\/rion-greenhouse\"\u003eRion Greenhouses\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e. As the air inside the greenhouse warms, the vent gradually opens to allow the correct amount of air flow into the greenhouse and closes when the optimal temperature is reached. The vent arm was designed with the use of natural wax that expands as the air gets warmer, to push a piston which raises the window, then contracts as it cools, closing with the use of a spring. The Automatic Vent Opener operates without the use of electricity.\u003c\/p\u003e \u003cp class=\"p1\"\u003eSKU: HG1027\u003c\/p\u003e \u003ch3\u003e\u003cspan\u003eFEATURE\u003c\/span\u003e\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\u003cspan\u003eAssembled dimension: 11\" W x 2\" D x 2\" H\u003c\/span\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003cul\u003e \u003cli\u003e\u003cspan\u003eAutomatically control ventilation\u003c\/span\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003cul\u003e \u003cli\u003e\u003cspan\u003eProtect your plants from heat exposure\u003c\/span\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003cul\u003e \u003cli\u003e\u003cspan\u003eProvides gradual airflow\u003c\/span\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003cul\u003e \u003cli\u003e\u003cspan\u003eEasy to install\u003c\/span\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003cul\u003e \u003cli\u003e\u003cspan\u003eHeat activated, no electricity necessary\u003c\/span\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003cul\u003e\u003c\/ul\u003e \u003ch3\u003e\u003cstrong\u003eSPEC\u003c\/strong\u003e\u003c\/h3\u003e \u003cp\u003eSize(inch): 2.7WX2HX15.7L\u003c\/p\u003e \u003cp\u003eWeight: 1.3 LB\u003c\/p\u003e \u003cp\u003eWarranty: 1 Year Limited\u003c\/p\u003e \u003cp\u003eShipping by: Small Parcel\u003c\/p\u003e \u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0560\/4786\/1967\/files\/HG1027_Manual.pdf?v=1627414162\" target=\"_blank\"\u003eManual\u003c\/a\u003e\u003c\/p\u003e","brand":"Rion","offers":[{"title":"Default Title","offer_id":54971017822547,"sku":"HG1027","price":52.0,"currency_code":"GBP","in_stock":true}],"url":"https:\/\/progradewarehouse.com\/products\/automatic-roof-vent-opener-hg1027","provider":"PRO GRADE WAREHOUSE","version":"1.0","type":"link"}