{"id":11289143542078,"title":"DR21 - Anti Draught Air Vent","handle":"dr21-anti-draught-air-vent","description":"\u003cp\u003e\u003cstrong\u003eThe DR21 Anti-Draught Air Vent\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003euses a 4”, 100mm hole which does not have to be drilled straight through a wall. A pilot hole can be drilled and then drill from each side. This has the advantages that a 100mm hole takes far less time to drill than a 127mm hole and puts less stain on the drill itself.  It also means that if the wall is damp and the core drill is snagging, it can be drilled half way through from each side, which also means that you avoid the risk of flaking off the surface of the bricks if you drill inside out, and the plaster if you drill outside in.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe vent has the same fixing holes as a standard louvred vent, so retro fitting one takes minutes, and it accepts all the standard tubes, ducting etc.\u003c\/li\u003e\n\u003cli\u003eIt has a free air equivalent of 3400 sq mm, OK for a stove up to just under 12kw (if you include leakage 12 kw is fine) which covers most stoves fitted.\u003c\/li\u003e\n\u003cli\u003eIt has been independently tested by Bre, and is approved by HETAS.\u003c\/li\u003e\n\u003cli\u003eIt is patent protected and produced to ISA 9000:2015 standards entirely in the UK.\u003c\/li\u003e\n\u003cli\u003eIt can be fitted over an existing 100mm hole, a 127mm hole or a 9” air brick.\u003c\/li\u003e\n\u003cli\u003eIt cannot be used on a kitchen extractor fan and the fat in the air will rapidly clog the interior.\u003c\/li\u003e\n\u003cli\u003eIt can be used for stoves up to 12kw, one could use two for larger stoves.\u003c\/li\u003e\n\u003cli\u003eIt can replace the rattling bathroom vents, passive air vents and underfloor air bricks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePeople use two for gas, they really should use three but as the old vent was almost certainly blocked with duct tape any ventilation is better than none.\u003c\/p\u003e\n\u003cp\u003eA gas fire, or an open fire, is said to need 10,000 sq mm, and, although a 127mm hole is 10,000 sq mm in area, but the time you fit the baffle device it comes down to 7800 sq mm Free Air.  Stadiums Black Hole Vent with the zig zag baffles within the 127mm diameter hole through the wall has a Free Air Equivalent of 2200 sq mm.\u003c\/p\u003e\n\u003c!----\u003e","published_at":"2024-06-29T02:12:44+01:00","created_at":"2024-06-29T02:10:09+01:00","vendor":"Dura Flue","type":"Dura Flue \u003e Accessories \u0026 Parts \u003e Improve My Chimney Draw \u003e Vents \u003e DR21 Vents","tags":["Accessories \u0026 Parts","Chimney and Flue","Improve My Chimney Draw","Vents_DR21 Vents"],"price":4337,"price_min":4337,"price_max":4337,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50041388204350,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":false,"featured_image":null,"available":true,"name":"DR21 - Anti Draught Air Vent","public_title":null,"options":["Default Title"],"price":4337,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/www.luxurystoves.uk\/cdn\/shop\/files\/edfa4bb42915fc92bb3ce6c08641907097a218fdd307d1d376a94d1255f400fd_1.jpg?v=1719623550"],"featured_image":"\/\/www.luxurystoves.uk\/cdn\/shop\/files\/edfa4bb42915fc92bb3ce6c08641907097a218fdd307d1d376a94d1255f400fd_1.jpg?v=1719623550","options":["Title"],"media":[{"alt":null,"id":40733154214206,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1200,"width":1200,"src":"\/\/www.luxurystoves.uk\/cdn\/shop\/files\/edfa4bb42915fc92bb3ce6c08641907097a218fdd307d1d376a94d1255f400fd_1.jpg?v=1719623550"},"aspect_ratio":1.0,"height":1200,"media_type":"image","src":"\/\/www.luxurystoves.uk\/cdn\/shop\/files\/edfa4bb42915fc92bb3ce6c08641907097a218fdd307d1d376a94d1255f400fd_1.jpg?v=1719623550","width":1200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003e\u003cstrong\u003eThe DR21 Anti-Draught Air Vent\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003euses a 4”, 100mm hole which does not have to be drilled straight through a wall. A pilot hole can be drilled and then drill from each side. This has the advantages that a 100mm hole takes far less time to drill than a 127mm hole and puts less stain on the drill itself.  It also means that if the wall is damp and the core drill is snagging, it can be drilled half way through from each side, which also means that you avoid the risk of flaking off the surface of the bricks if you drill inside out, and the plaster if you drill outside in.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe vent has the same fixing holes as a standard louvred vent, so retro fitting one takes minutes, and it accepts all the standard tubes, ducting etc.\u003c\/li\u003e\n\u003cli\u003eIt has a free air equivalent of 3400 sq mm, OK for a stove up to just under 12kw (if you include leakage 12 kw is fine) which covers most stoves fitted.\u003c\/li\u003e\n\u003cli\u003eIt has been independently tested by Bre, and is approved by HETAS.\u003c\/li\u003e\n\u003cli\u003eIt is patent protected and produced to ISA 9000:2015 standards entirely in the UK.\u003c\/li\u003e\n\u003cli\u003eIt can be fitted over an existing 100mm hole, a 127mm hole or a 9” air brick.\u003c\/li\u003e\n\u003cli\u003eIt cannot be used on a kitchen extractor fan and the fat in the air will rapidly clog the interior.\u003c\/li\u003e\n\u003cli\u003eIt can be used for stoves up to 12kw, one could use two for larger stoves.\u003c\/li\u003e\n\u003cli\u003eIt can replace the rattling bathroom vents, passive air vents and underfloor air bricks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePeople use two for gas, they really should use three but as the old vent was almost certainly blocked with duct tape any ventilation is better than none.\u003c\/p\u003e\n\u003cp\u003eA gas fire, or an open fire, is said to need 10,000 sq mm, and, although a 127mm hole is 10,000 sq mm in area, but the time you fit the baffle device it comes down to 7800 sq mm Free Air.  Stadiums Black Hole Vent with the zig zag baffles within the 127mm diameter hole through the wall has a Free Air Equivalent of 2200 sq mm.\u003c\/p\u003e\n\u003c!----\u003e"}