{"title":"Greenhouse Extra Vent Options for Growing Dome® Greenhouses","description":"\u003cp data-start=\"339\" data-end=\"876\"\u003eImprove airflow and climate control in your Growing Dome® greenhouse with greenhouse vent options designed for both upper or lower vent placement. These vents help regulate temperature, manage humidity, and support consistent air movement throughout the dome. Whether installed near the base for fresh air intake or higher up to release warm air, these vent options integrate seamlessly into Growing Dome® structures and work alongside fans and vent openers to support a balanced, healthy growing environment.\u003c\/p\u003e","products":[{"product_id":"18-extra-vent-wbayliss","title":"Extra Upper Vent (with Gigavent) 18' Growing Dome","description":"\u003cp data-mce-fragment=\"1\"\u003eSometimes we are overwhelmed with the responsibility of managing everything in our lives. Greenhouse temperatures are no exception.  An extra automated upper vent can be added to our 18′ dome for extra ventilation and peace of mind.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003cspan data-mce-fragment=\"1\"\u003e*If purchased separately from Dome kit, subject to freight and crating fees which will be reflected in the shipping cost\u003c\/span\u003e\u003c\/p\u003e","brand":"Growing Spaces Greenhouses","offers":[{"title":"Default Title","offer_id":38134703882416,"sku":"GS-OPT-00010","price":495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8422\/0972\/products\/IMG_4005.jpg?v=1663177778"},{"product_id":"15-extra-vent-w-univent","title":"Extra Upper Vent (with Bayliss) 15' Growing Dome","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eSometimes we are overwhelmed with the responsibility of managing everything in our lives. Greenhouse temperatures are no exception.  An extra automated upper vent can be added to the 15′ dome for extra ventilation and peace of mind.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e*If purchased separately from Dome kit, subject to freight and crating fees which will be reflected in the shipping cost\u003c\/span\u003e\u003c\/p\u003e","brand":"Growing Spaces Greenhouses","offers":[{"title":"Default Title","offer_id":38134723477680,"sku":"GS-OPT-00007","price":495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8422\/0972\/products\/IMG_4001.jpg?v=1756153832"},{"product_id":"extra-vent-with-univent-22-foot-growing-dome","title":"Extra Lower Vent (with Univent) 22' Growing Dome","description":"\u003cp\u003e\u003cspan\u003eSometimes we are overwhelmed with the responsibility of managing everything in our lives. Greenhouse temperatures are no exception.  An extra automated lower vent can be added to the 22′ dome for extra ventilation and peace of mind.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe Univent® automatic greenhouse vent opener is handmade in Denmark. Only the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"\/shop\/product\/15-foot-small-dome-greenhouse-kit\"\u003e15′\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"\/shop\/product\/22-foot-growing-dome-greenhouse-kit\"\u003e22′\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eGrowing Domes use these vent openers on the lower vents. These openers are very easy to install and use. For wintertime, this vent opener disengages from the mounting bracket on the vent with a quick squeeze of the support arms. The Univent has an opening force of about 15 pounds and the two springs provide a closing force of about 1.7 pounds. The piston and cylinder provide opening and closing temperature adjustments by threading it in or out.\u003c\/p\u003e\n\u003cp\u003e*If purchased separately from Dome kit, subject to freight and crating fees which will be reflected in the shipping cost\u003c\/p\u003e","brand":"Growing Spaces Greenhouses","offers":[{"title":"Default Title","offer_id":40208994074800,"sku":"GS-OPT-00031","price":495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8422\/0972\/products\/DSC09684_090e82c4-3c90-4903-a155-7da58ee08700.jpg?v=1627073690"},{"product_id":"extra-vent-with-bayliss-26-foot-growing-dome","title":"Extra Lower Vent (with Bayliss) 26' Growing Dome","description":"\u003cp data-mce-fragment=\"1\"\u003eSometimes we are overwhelmed with the responsibility of managing everything in our lives. Greenhouse temperatures are no exception.  An extra automated lower vent can be added to our 26′ dome for extra ventilation and peace of mind.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe sturdy Bayliss Hydraulicheck solar greenhouse vent openers are\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003ecustom made\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003ein the UK for Growing Spaces, and are not available in retail stores. The Bayliss openers are perfect for our small to mid-sized greenhouse vents. T\u003cspan data-mce-fragment=\"1\"\u003ehe lower vents on the\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e 18' \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eand 26'\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eGrowing Domes are controlled by these openers.\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eThis solar greenhouse accessory offers a “hydraulicheck” feature that prevents the vent from being jerked open by strong winds. The solar greenhouse vent openers can be exposed to prevailing winds in excess of 60 mph. The Bayliss opens\u003cspan data-mce-fragment=\"1\"\u003e between 55-65 degrees Fahrenheit. \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eMaximum opening distance of 12 inches.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e*If purchased separately from Dome kit, subject to freight and crating fees which will be reflected in the shipping cost\u003c\/span\u003e\u003c\/p\u003e","brand":"Growing Spaces Greenhouses","offers":[{"title":"Default Title","offer_id":40209001316528,"sku":"GS-OPT-00030","price":495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8422\/0972\/products\/ExtraVentw_Bayliss-Inside_d7b29b8b-a25e-4472-b3a0-86cda95d36b1.jpg?v=1627073903"}],"url":"https:\/\/checkout.growingspaces.com\/collections\/dome-greenhouse-extra-lower-vent.oembed","provider":"Growing Spaces","version":"1.0","type":"link"}