{"product_id":"riga-automatic-window-opener","title":"Riga Automatic Window Opener","description":"\u003ch2\u003e\u003cstrong\u003eRiga Automatic Window Opener\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eRiga Automatic Window Opener\u003c\/strong\u003e is a replacement or additional wax-cylinder roof vent opener compatible with all Riga greenhouse models. It requires no electricity and no manual adjustment — the paraffin oil inside the cylinder expands as the greenhouse interior warms, automatically pushing the roof window open to ventilate. When the temperature drops, the cylinder contracts and the window closes. Add one to replace a failed opener, or add a second opener to a roof window for increased opening force.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eParaffin (wax) cylinder mechanism — no electricity required\u003c\/li\u003e\n\u003cli\u003eOpens automatically starting at approximately 72°F (22°C)\u003c\/li\u003e\n\u003cli\u003eQuick-release arm — allows the opener to be disconnected from the window in adverse weather conditions (heavy snow, high winds) to prevent damage\u003c\/li\u003e\n\u003cli\u003eCompatible with all Riga greenhouse roof vents\u003c\/li\u003e\n\u003cli\u003eReplacement or additional unit — use to replace a failed opener or add a second opener to a single roof window\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMechanism\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eParaffin (wax) oil cylinder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOpening Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApproximately 72°F (22°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNone — fully automatic, temperature-driven\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuick-Release Arm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes — allows disconnection in adverse weather\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAll Riga greenhouse roof vents\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIGA-AUTO-OPENER\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$119 per unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow the Automatic Opener Works\u003c\/h3\u003e\n\u003cp\u003eThe opener uses a sealed cylinder filled with paraffin (wax) oil. As the greenhouse interior temperature rises above approximately 72°F, the paraffin expands and pushes a piston outward, which in turn pushes the roof window open. As the temperature drops below the threshold, the paraffin contracts, the piston retracts, and the window closes under its own weight. The cycle repeats automatically throughout the day with no user intervention required.\u003c\/p\u003e\n\u003cp\u003eThe quick-release arm allows you to manually disconnect the opener from the window frame — useful in heavy snow conditions (to prevent the opener from being damaged by snow weight on the window) or when you want to keep the window closed during cold snaps without removing the opener entirely.\u003c\/p\u003e\n\n\u003ch3\u003eWhen to Add or Replace an Automatic Opener\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSituation\u003c\/th\u003e\n\u003cth\u003eRecommendation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOriginal opener has failed or no longer opens fully\u003c\/td\u003e\n\u003ctd\u003eReplace with this unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoof window is heavy and opener doesn’t open it wide enough\u003c\/td\u003e\n\u003ctd\u003eAdd a second opener alongside the existing one\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdding a roof window that didn’t come with an opener\u003c\/td\u003e\n\u003ctd\u003eAdd this unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpgrading from manual to automatic ventilation\u003c\/td\u003e\n\u003ctd\u003eAdd this unit to any compatible Riga roof vent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eRiga Greenhouse Roof Window Count by Model\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRoof Windows (standard)\u003c\/th\u003e\n\u003cth\u003eAuto Openers Included\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIs\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IIIs\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga III\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IVs\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga IV\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga V\u003c\/td\u003e\n\u003ctd\u003e2+\u003c\/td\u003e\n\u003ctd\u003e2+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga XL 6\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiga XL 9\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eEach Riga greenhouse ships with one automatic opener per roof window. This product allows you to replace a failed opener or add a second opener to any roof window for increased opening force.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes this opener work with all Riga greenhouse models?\u003c\/strong\u003e\u003cbr\u003eYes — the Riga Automatic Window Opener is compatible with all Riga greenhouse roof vents, including the IIs, IIIs, III, IVs, IV, V, XL 6, and XL 9.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAt what temperature does the opener activate?\u003c\/strong\u003e\u003cbr\u003eThe opener begins to open at approximately 72°F (22°C). The opening force increases as the temperature rises further above this threshold. The exact opening angle depends on the interior temperature and the weight of the roof window.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the quick-release arm for?\u003c\/strong\u003e\u003cbr\u003eThe quick-release arm allows you to disconnect the opener from the roof window without removing the opener from the greenhouse frame. This is useful in heavy snow conditions — disconnecting the opener prevents it from being damaged if snow weight pushes the window down against the opener’s resistance. It also allows you to keep the window closed during cold snaps without disabling the opener permanently.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I add a second opener to the same roof window?\u003c\/strong\u003e\u003cbr\u003eYes — if your roof window is heavy or if the single opener doesn’t open the window wide enough, you can add a second opener alongside the existing one. Two openers working together provide greater opening force and a wider opening angle.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMy opener no longer opens the window fully — does it need to be replaced?\u003c\/strong\u003e\u003cbr\u003eWax cylinder openers can lose effectiveness over time as the paraffin degrades or the seals wear. If your opener no longer opens the window to its previous angle at the same temperatures, replacement is recommended. This unit is a direct replacement for the original Riga automatic opener.\u003c\/p\u003e","brand":"Exaco","offers":[{"title":"Default Title","offer_id":59517636935966,"sku":"RIGA-AUTO-OPENER","price":119.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/1802\/5246\/files\/riga_ventilation.jpg?v=1782510512","url":"https:\/\/rigagreenhousekit.com\/products\/riga-automatic-window-opener","provider":"Riga Greenhouses","version":"1.0","type":"link"}