{"product_id":"opus-harmony-7kw-wood-burning-stove","title":"Opus Harmony 7kW Wood Burning Stove","description":"\u003cp\u003eThe Opus Harmony is a 7kW wood burning stove that runs at 80% efficiency and is Ecodesign ready, with a welded steel body, a cast iron grate and a 150mm flue that can leave from the top or the rear. Every version is 598mm wide and 437mm deep. Choose from five styles: D with a bottom door, GD with a glass door and bottom door, LS with an open log store, GLS with a glass door and log store, or PR on a rotating pedestal.\u003c\/p\u003e\n\u003ch2\u003eWhy choose the Opus Harmony\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e7kW nominal output at 80% efficiency; Ecodesign ready.\u003c\/li\u003e\n\u003cli\u003eWelded steel body with a cast iron grate.\u003c\/li\u003e\n\u003cli\u003e150mm flue from the top or rear and a 100mm external air connection.\u003c\/li\u003e\n\u003cli\u003eCan stand on a 12mm hearth.\u003c\/li\u003e\n\u003cli\u003eD and GD versions have a bottom door below the fire chamber; GD and GLS add a glass door on the fire.\u003c\/li\u003e\n\u003cli\u003eLS and GLS versions have a log store in the base, so a supply of logs sits ready beneath the fire.\u003c\/li\u003e\n\u003cli\u003ePR version sits on a pedestal and can be turned by up to 90 degrees (only when cold) to face different parts of the room.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWill it suit your space?\u003c\/h2\u003e\u003cp\u003eAs a rule of thumb, an average room needs roughly 1kW for every 14 cubic metres, so its 7kW suits about 98 cubic metres (around 41 square metres with a 2.4m ceiling). Older, draughty or high-ceilinged rooms need more, and a heat-loss check by your installer gives the right answer.\u003c\/p\u003e\u003cp\u003eEvery Harmony is 598mm wide and 437mm deep and weighs 128kg; the PR stands lower than the other versions, so check the sizes table below for the height and flue position of each. It needs 420mm clearance to combustibles at the sides and 180mm at the rear.\u003c\/p\u003e\n\u003cdiv class=\"gf-sizes\" id=\"gf-sizes\"\u003e\n\u003ch2\u003eSizes and options\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eStyle\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDimensions (H x W x D)\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFlue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eD, bottom door\u003c\/th\u003e\n\u003ctd\u003e1089 x 598 x 437mm\u003c\/td\u003e\n\u003ctd\u003e150mm, top or rear outlet (rear flue centre 926mm high; top flue centre 172mm from back)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eGD, glass door\u003c\/th\u003e\n\u003ctd\u003e1089 x 598 x 437mm\u003c\/td\u003e\n\u003ctd\u003e150mm, top or rear outlet (rear flue centre 926mm high; top flue centre 172mm from back)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eLS, open log store\u003c\/th\u003e\n\u003ctd\u003e1089 x 598 x 437mm\u003c\/td\u003e\n\u003ctd\u003e150mm, top or rear outlet (rear flue centre 926mm high; top flue centre 172mm from back)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eGLS, glass door and log store\u003c\/th\u003e\n\u003ctd\u003e1089 x 598 x 437mm\u003c\/td\u003e\n\u003ctd\u003e150mm, top or rear outlet (rear flue centre 926mm high; top flue centre 172mm from back)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePR, rotating pedestal\u003c\/th\u003e\n\u003ctd\u003e957 x 598 x 437mm\u003c\/td\u003e\n\u003ctd\u003e150mm, top or rear outlet (rear flue centre 796mm high; top flue centre 218mm from back)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gf-desc-specs\"\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eOpus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeat output\u003c\/th\u003e\n\u003ctd\u003e7kW nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEfficiency\u003c\/th\u003e\n\u003ctd\u003e80%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFuel\u003c\/th\u003e\n\u003ctd\u003eWood only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e128kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eWelded steel body, cast iron grate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum log length\u003c\/th\u003e\n\u003ctd\u003e330mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClearance to combustibles\u003c\/th\u003e\n\u003ctd\u003e420mm sides, 180mm rear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHearth\u003c\/th\u003e\n\u003ctd\u003eCan stand on a 12mm hearth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eExternal air\u003c\/th\u003e\n\u003ctd\u003e100mm connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEcodesign\u003c\/th\u003e\n\u003ctd\u003eEcodesign ready\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSmoke control\u003c\/th\u003e\n\u003ctd\u003eNot exempt for smoke control areas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eInstallation and safety\u003c\/h2\u003e\u003cp\u003eIt must be installed by a HETAS-registered installer or signed off by Building Control, and a carbon monoxide alarm is required in the room. Follow the clearances and hearth details in the Opus installation manual.\u003c\/p\u003e\n\u003cdiv class=\"gf-desc-faq\"\u003e\n\u003ch2\u003eQuestions\u003c\/h2\u003e\n\u003ch3\u003eCan it burn coal or smokeless fuel?\u003c\/h3\u003e\n\u003cp\u003eNo. Opus and Firepower list the Harmony as a wood burning stove, and the manual rates it on wood only.\u003c\/p\u003e\n\u003ch3\u003eCan I use it in a smoke control area?\u003c\/h3\u003e\n\u003cp\u003eNo. The Harmony is listed as not DEFRA exempt, and there is no SE version on the current Firepower price list.\u003c\/p\u003e\n\u003ch3\u003eWhat do the letters mean?\u003c\/h3\u003e\n\u003cp\u003eIn Opus's naming, D stands for the bottom door and G for a glass door. The LS has an open log store instead of a bottom door, and the PR sits on a rotating pedestal.\u003c\/p\u003e\n\u003ch3\u003eWhat size logs does it take?\u003c\/h3\u003e\n\u003cp\u003eLogs up to 330mm long. It burns wood only.\u003c\/p\u003e\n\u003ch3\u003eWhat flue does it need?\u003c\/h3\u003e\n\u003cp\u003eA 150mm flue from the top or rear. It also has a 100mm connection for an external air supply.\u003c\/p\u003e\n\u003ch3\u003eCan the stove turn to face the room?\u003c\/h3\u003e\n\u003cp\u003eYes, the PR version. It sits on a pedestal and can be turned by up to 90 degrees, but only when the stove is cold and only where the clearances in the manual are kept, including at least 1350mm in front of the glass.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Opus","offers":[{"title":"D, bottom door","offer_id":42137406341374,"sku":"10014437","price":2220.0,"currency_code":"GBP","in_stock":true},{"title":"GD, glass door","offer_id":57010585600386,"sku":"10014498","price":2515.0,"currency_code":"GBP","in_stock":true},{"title":"LS, open log store","offer_id":57010585633154,"sku":"10014226","price":2115.0,"currency_code":"GBP","in_stock":true},{"title":"GLS, glass door and log store","offer_id":57010585665922,"sku":"10014499","price":2410.0,"currency_code":"GBP","in_stock":true},{"title":"PR, rotating pedestal","offer_id":57010585698690,"sku":"10014438","price":2275.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/4037\/1710\/products\/Opus-Harmony.jpg?v=1665870890","url":"https:\/\/www.glowingflames.co.uk\/products\/opus-harmony-7kw-wood-burning-stove","provider":"Glowing Flames","version":"1.0","type":"link"}