{"product_id":"defro-schamottestein-25kw-boilers-boiler-zubehoer-klimaanlagen-heizen","title":"Defro fireclay brick for DS 20 \u0026 DS II 25 kW - primary brick, secondary brick or set","description":"\u003cp data-end=\"701\" data-start=\"412\"\u003eOriginal firebricks for Defro DS 20 and DS II 25 kW boilers – optionally as individual units \u003cstrong data-end=\"521\" data-start=\"506\"\u003ePrimary stone\u003c\/strong\u003e,  individual \u003cstrong data-end=\"550\" data-start=\"533\"\u003eSecondary stone\u003c\/strong\u003e or as \u003cstrong data-end=\"578\" data-start=\"560\"\u003ecomplete set\u003c\/strong\u003e With both stones. Optimal fit – ideal for repair, replacement or maintenance. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e  \u003chr data-end=\"706\" data-start=\"703\"\u003e  \u003ch3 data-end=\"737\" data-start=\"708\"\u003e\u003cstrong data-end=\"737\" data-start=\"712\"\u003eHighlights \u0026amp; Advantages\u003c\/strong\u003e\u003c\/h3\u003e  \u003cp data-end=\"1265\" data-start=\"738\"\u003e⭐ Original Defro replacement firebrick – high heat resistance and long service life \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003cbr data-end=\"865\" data-start=\"862\"\u003e⭐ Suitable for Defro DS 20 kW and DS II 25 kW boilers \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003cbr data-end=\"961\" data-start=\"958\"\u003e⭐ Individual purchase possible: \u003cstrong data-end=\"1017\" data-start=\"983\"\u003ePrimary stone or secondary stone\u003c\/strong\u003e separately \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003cbr data-end=\"1066\" data-start=\"1063\"\u003e⭐ Complete \u003cstrong data-end=\"1114\" data-start=\"1079\"\u003eSet with primary \u0026amp; Secondary stone\u003c\/strong\u003e available \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003cbr data-end=\"1165\" data-start=\"1162\"\u003e⭐ Perfect heat conduction in the combustion chamber – for efficient operation \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e  \u003chr data-end=\"1270\" data-start=\"1267\"\u003e  \u003ch2 data-end=\"1298\" data-start=\"1272\"\u003e\u003cstrong data-end=\"1298\" data-start=\"1275\"\u003eProduct description\u003c\/strong\u003e\u003c\/h2\u003e  \u003cp data-end=\"1641\" data-start=\"1300\"\u003eThe \u003cstrong data-end=\"1328\" data-start=\"1304\"\u003eDefro fireclay brick\u003c\/strong\u003e is a high-quality, heat-resistant ceramic brick for the combustion chamber of classic solid fuel and wood gasification boilers of the following types \u003cstrong data-end=\"1473\" data-start=\"1461\"\u003eDS 20 kW\u003c\/strong\u003e and \u003cstrong data-end=\"1493\" data-start=\"1478\"\u003eDS II 25 kW\u003c\/strong\u003e from DEFRO. It ensures consistent flame control and high thermal safety during boiler operation. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e  \u003cp data-end=\"2142\" data-start=\"1643\"\u003eWhat makes this product particularly flexible:\u003cbr data-end=\"1690\" data-start=\"1687\"\u003e✔ You can \u003cstrong data-end=\"1725\" data-start=\"1702\"\u003eonly the primary stone\u003c\/strong\u003e order – e.g., when the flame guide is worn out. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003cbr data-end=\"1825\" data-start=\"1822\"\u003e✔ You can \u003cstrong data-end=\"1862\" data-start=\"1837\"\u003eonly the secondary stone\u003c\/strong\u003e Order now – ideal for damage in the area of ​​secondary air openings. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003cbr data-end=\"1971\" data-start=\"1968\"\u003e✔ Or you can choose that \u003cstrong data-end=\"2024\" data-start=\"2007\"\u003ecomplete set\u003c\/strong\u003e Made from both stones – perfect for a complete renovation in one go. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e  \u003cp data-end=\"2466\" data-start=\"2144\"\u003e💡  \u003cstrong data-end=\"2162\" data-start=\"2147\"\u003ePrimary stone\u003c\/strong\u003e:  Fireclay brick flame guide – responsible for the primary combustion air supply in the boiler. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003cbr data-end=\"2303\" data-start=\"2300\"\u003e💡  \u003cstrong data-end=\"2323\" data-start=\"2306\"\u003eSecondary stone\u003c\/strong\u003e:  Two-part fireclay brick with openings for secondary air supply – supports residual combustion. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e  \u003chr data-end=\"2471\" data-start=\"2468\"\u003e  \u003ch2 data-end=\"2499\" data-start=\"2473\"\u003e\u003cstrong data-end=\"2499\" data-start=\"2476\"\u003eVariants \u0026amp; Selection\u003c\/strong\u003e\u003c\/h2\u003e  \u003cul data-end=\"2703\" data-start=\"2500\"\u003e  \u003cli data-end=\"2529\" data-start=\"2500\"\u003e  \u003cp data-end=\"2529\" data-start=\"2502\"\u003e\u003cstrong data-end=\"2517\" data-start=\"2502\"\u003ePrimary stone\u003c\/strong\u003e – individually\u003c\/p\u003e  \u003c\/li\u003e  \u003cli data-end=\"2594\" data-start=\"2530\"\u003e  \u003cp data-end=\"2594\" data-start=\"2532\"\u003e\u003cstrong data-end=\"2549\" data-start=\"2532\"\u003eSecondary stone\u003c\/strong\u003e – single (consisting of two half-shells)\u003c\/p\u003e  \u003c\/li\u003e  \u003cli data-end=\"2703\" data-start=\"2595\"\u003e  \u003cp data-end=\"2703\" data-start=\"2597\"\u003e\u003cstrong data-end=\"2629\" data-start=\"2597\"\u003eSet – Primary \u0026amp; Secondary stone\u003c\/strong\u003e – complete firebrick package \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e  \u003c\/li\u003e  \u003c\/ul\u003e  \u003chr data-end=\"2708\" data-start=\"2705\"\u003e  \u003ch2 data-end=\"2759\" data-start=\"2710\"\u003e\u003cstrong data-end=\"2759\" data-start=\"2713\"\u003eTechnical specifications (according to product information)\u003c\/strong\u003e\u003c\/h2\u003e  \u003cdiv class=\"TyagGW_tableContainer\"\u003e  \u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e  \u003ctable class=\"w-fit min-w-(--thread-content-width)\" data-end=\"3275\" data-start=\"2760\"\u003e  \u003cthead data-end=\"2786\" data-start=\"2760\"\u003e  \u003ctr data-end=\"2786\" data-start=\"2760\"\u003e  \u003cth class=\"\" data-col-size=\"sm\" data-end=\"2774\" data-start=\"2760\"\u003e\u003cstrong data-end=\"2773\" data-start=\"2762\"\u003efeature\u003c\/strong\u003e\u003c\/th\u003e  \u003cth class=\"\" data-col-size=\"md\" data-end=\"2786\" data-start=\"2774\"\u003e\u003cstrong data-end=\"2784\" data-start=\"2776\"\u003eValue\u003c\/strong\u003e\u003c\/th\u003e  \u003c\/tr\u003e  \u003c\/thead\u003e  \u003ctbody data-end=\"3275\" data-start=\"2814\"\u003e  \u003ctr data-end=\"2911\" data-start=\"2814\"\u003e  \u003ctd data-col-size=\"sm\" data-end=\"2829\" data-start=\"2814\"\u003eSuitable for\u003c\/td\u003e  \u003ctd data-col-size=\"md\" data-end=\"2911\" data-start=\"2829\"\u003eDEFRO DS 20 kW, DS II 25 kW boiler \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e  \u003c\/td\u003e  \u003c\/tr\u003e  \u003ctr data-end=\"2997\" data-start=\"2912\"\u003e  \u003ctd data-col-size=\"sm\" data-end=\"2931\" data-start=\"2912\"\u003ePrimary stone dimensions\u003c\/td\u003e  \u003ctd data-col-size=\"md\" data-end=\"2997\" data-start=\"2931\"\u003eapprox. 100 × 350 × 155 mm \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e  \u003c\/td\u003e  \u003c\/tr\u003e  \u003ctr data-end=\"3101\" data-start=\"2998\"\u003e  \u003ctd data-col-size=\"sm\" data-end=\"3019\" data-start=\"2998\"\u003eSecondary stone dimensions\u003c\/td\u003e  \u003ctd data-col-size=\"md\" data-end=\"3101\" data-start=\"3019\"\u003eapprox. 80 × 350 × 9 mm (two half-shells) \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e  \u003c\/td\u003e  \u003c\/tr\u003e  \u003ctr data-end=\"3187\" data-start=\"3102\"\u003e  \u003ctd data-col-size=\"sm\" data-end=\"3113\" data-start=\"3102\"\u003ematerial\u003c\/td\u003e  \u003ctd data-end=\"3187\" data-start=\"3113\" data-col-size=\"md\"\u003eFireclay\/refractory ceramic \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e  \u003c\/td\u003e  \u003c\/tr\u003e  \u003ctr data-end=\"3275\" data-start=\"3188\"\u003e  \u003ctd data-col-size=\"sm\" data-end=\"3200\" data-start=\"3188\"\u003eVariants\u003c\/td\u003e  \u003ctd data-col-size=\"md\" data-end=\"3275\" data-start=\"3200\"\u003ePrimary stone, secondary stone, set \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e  \u003c\/td\u003e  \u003c\/tr\u003e  \u003c\/tbody\u003e  \u003c\/table\u003e  \u003c\/div\u003e  \u003c\/div\u003e  \u003chr data-end=\"3280\" data-start=\"3277\"\u003e  \u003ch2 data-end=\"3308\" data-start=\"3282\"\u003e\u003cstrong data-end=\"3308\" data-start=\"3285\"\u003eMission \u0026amp; Application\u003c\/strong\u003e\u003c\/h2\u003e  \u003cp data-end=\"3692\" data-start=\"3309\"\u003eThe firebricks serve as wear and tear protection and functional protection in the combustion chamber of your boiler. They ensure:\u003cbr data-end=\"3423\" data-start=\"3420\"\u003e✅ higher thermal stability in the combustion chamber\u003cbr data-end=\"3469\" data-start=\"3466\"\u003e✅ more even heat distribution\u003cbr data-end=\"3504\" data-start=\"3501\"\u003e✅ optimized fuel consumption\u003cbr data-end=\"3540\" data-start=\"3537\"\u003eReplacing individual stones extends the lifespan of your boiler and avoids unnecessary repair costs. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e  \u003chr data-end=\"3697\" data-start=\"3694\"\u003e  \u003ch2 data-end=\"3725\" data-start=\"3699\"\u003e\u003cstrong data-end=\"3725\" data-start=\"3702\"\u003eOrdering tip\u003c\/strong\u003e\u003c\/h2\u003e  \u003cp data-end=\"3901\" data-start=\"3726\"\u003eChoose the variant when purchasing \u003cstrong data-end=\"3765\" data-start=\"3755\"\u003ePrimary\u003c\/strong\u003e, \u003cstrong data-end=\"3779\" data-start=\"3767\"\u003eSecondary\u003c\/strong\u003e or \u003cstrong data-end=\"3792\" data-start=\"3785\"\u003eset\u003c\/strong\u003e,  Depending on your needs – that way you get exactly what you currently require.\u003c\/p\u003e","brand":"Defro","offers":[{"title":"Primary","offer_id":49351964459356,"sku":"DDSP20","price":106.13,"currency_code":"EUR","in_stock":true},{"title":"Secondary","offer_id":49351964492124,"sku":"DDSS20","price":130.2,"currency_code":"EUR","in_stock":false},{"title":"Set","offer_id":49351964524892,"sku":"DDSSS20","price":224.29,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/7796\/6428\/files\/defro-schamottestein-set-fur-ds-20-und-ds-ii-25kw-heizkessel-8282631.png?v=1770693227","url":"https:\/\/gr.gemashop.de\/en\/products\/defro-firebrick-stone-25kw-boilers-boiler-accessories-air-conditioning-heating","provider":"GEMA Shop","version":"1.0","type":"link"}