{"product_id":"vaillant-0020135129-heat-exchanger","title":"Vaillant 0020135129 Heat Exchanger - ecoTEC Plus VU\/ecoTEC Pro VUW","description":"\u003cp data-start=\"187\" data-end=\"550\"\u003eThe \u003cstrong data-start=\"191\" data-end=\"214\"\u003eVaillant 0020135129\u003c\/strong\u003e is a genuine OEM \u003cstrong data-start=\"232\" data-end=\"258\"\u003eprimary heat exchanger\u003c\/strong\u003e designed to deliver reliable, efficient heat transfer within compatible Vaillant boilers. This component is responsible for transferring heat from the burner into the system water, making it essential for consistent heating performance, reduced energy consumption, and safe boiler operation.\u003c\/p\u003e\n\u003cp data-start=\"552\" data-end=\"787\"\u003eA failing or blocked heat exchanger can cause issues such as poor heat output, kettling, error codes, and boiler lockouts. Replacing it with a genuine Vaillant part ensures long-term reliability and restores optimal system performance.\u003c\/p\u003e\n\u003cp data-start=\"789\" data-end=\"808\"\u003e\u003cstrong data-start=\"789\" data-end=\"806\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"809\" data-end=\"1189\"\u003e\n\u003cli data-start=\"809\" data-end=\"856\"\u003e\n\u003cp data-start=\"811\" data-end=\"856\"\u003e\u003cstrong data-start=\"811\" data-end=\"854\"\u003eGenuine Vaillant primary heat exchanger\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"857\" data-end=\"901\"\u003e\n\u003cp data-start=\"859\" data-end=\"901\"\u003eProvides efficient, stable heat transfer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"902\" data-end=\"953\"\u003e\n\u003cp data-start=\"904\" data-end=\"953\"\u003eManufactured to Vaillant’s strict OEM standards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"954\" data-end=\"1023\"\u003e\n\u003cp data-start=\"956\" data-end=\"1023\"\u003eHelps resolve issues such as poor heating, kettling \u0026amp; overheating\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1024\" data-end=\"1069\"\u003e\n\u003cp data-start=\"1026\" data-end=\"1069\"\u003eDurable, corrosion-resistant construction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1070\" data-end=\"1132\"\u003e\n\u003cp data-start=\"1072\" data-end=\"1132\"\u003eEssential for restoring boiler performance and reliability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1133\" data-end=\"1189\"\u003e\n\u003cp data-start=\"1135\" data-end=\"1189\"\u003eSuitable for professional installation and servicing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1191\" data-end=\"1194\"\u003e\n\u003ch3 data-start=\"1196\" data-end=\"1217\"\u003e\u003cstrong data-start=\"1200\" data-end=\"1217\"\u003eCompatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1218\" data-end=\"1323\"\u003eThe \u003cstrong data-start=\"1222\" data-end=\"1260\"\u003eVaillant 0020135129 Heat Exchanger\u003c\/strong\u003e is compatible with selected Vaillant boiler models, including:\u003c\/p\u003e\n\u003cul data-start=\"1325\" data-end=\"1484\"\u003e\n\u003cli data-start=\"1325\" data-end=\"1364\"\u003e\n\u003cp data-start=\"1327\" data-end=\"1364\"\u003eecoTEC Plus range (model dependent)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1365\" data-end=\"1385\"\u003e\n\u003cp data-start=\"1367\" data-end=\"1385\"\u003eecoTEC Pro units\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1386\" data-end=\"1411\"\u003e\n\u003cp data-start=\"1388\" data-end=\"1411\"\u003eecoTEC Sustain models\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1412\" data-end=\"1484\"\u003e\n\u003cp data-start=\"1414\" data-end=\"1484\"\u003eAny Vaillant appliance that lists \u003cstrong data-start=\"1448\" data-end=\"1462\"\u003e0020135129\u003c\/strong\u003e in its parts manual\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1486\" data-end=\"1599\"\u003e\u003cem data-start=\"1486\" data-end=\"1599\"\u003eEngineers should always confirm compatibility using the boiler’s official service documentation or parts guide.\u003c\/em\u003e\u003c\/p\u003e","brand":"Vaillant","offers":[{"title":"Default Title","offer_id":56695549067609,"sku":null,"price":670.06,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0982\/9738\/1209\/files\/1383355.jpg?v=1764238849","url":"https:\/\/plumbpartsxpressshop.com\/products\/vaillant-0020135129-heat-exchanger","provider":"Plumbparts xpress","version":"1.0","type":"link"}