{"product_id":"tjernlund-products-dc4","title":"Tjernlund Products DC4 Draft Control","description":"\u003cp\u003eThe \u003cstrong\u003eTjernlund DC4 Draft Control\u003c\/strong\u003e is an essential component for technicians managing combustion efficiency in residential and commercial heating systems. This \u003cstrong\u003e4 inch single acting draft control\u003c\/strong\u003e is precision-engineered to maintain a consistent neutral draft within chimneys and vents, effectively counteracting fluctuations caused by changing barometric pressure, stack temperatures, and wind velocity. Fabricated from heavy-duty \u003cstrong\u003ecorrosion resistant steel\u003c\/strong\u003e, the DC4 features self-aligning and self-centering rocker bearings to ensure friction-free operation and long-term reliability in demanding environments. Designed for \u003cstrong\u003eoil and solid fuel applications\u003c\/strong\u003e as well as fan-assisted gas burners, this barometric damper utilizes a cushioned stop to minimize vibration and mechanical noise during operation. The integrated counterweight adjustment on the outside tab allows for precise field calibration to achieve the specific draft requirements of the heating appliance, reducing service calls and improving overall fuel economy by preventing excessive heat loss through the flue.\u003c\/p\u003e\n\n\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecision Draft Regulation:\u003c\/strong\u003e Maintains a stable neutral draft to optimize combustion efficiency and significantly reduce fuel consumption across \u003cstrong\u003eoil and fan-assisted gas burners\u003c\/strong\u003e.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Construction:\u003c\/strong\u003e Built with \u003cstrong\u003ecorrosion resistant steel\u003c\/strong\u003e and self-aligning rocker bearings to ensure durability and operational longevity in high-temperature venting environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNoise Reduction:\u003c\/strong\u003e Features a cushioned stop mechanism specifically designed to minimize rattle and mechanical noise during the pivoting cycle.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility:\u003c\/strong\u003e Ideal for \u003cstrong\u003e4\" vent pipes\u003c\/strong\u003e used in chimneys, boilers, stoves, and incinerators, with easy field adjustment via an external counterweight.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cstrong\u003eCommon Questions:\u003c\/strong\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHow do I adjust the draft setting on the DC4?\u003c\/strong\u003e You can calibrate the draft by moving the counterweight on the external tab; this \u003cstrong\u003esingle acting control\u003c\/strong\u003e allows for precise adjustment to match the appliance manufacturer's stack pressure specifications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIs the Tjernlund DC4 suitable for gas-fired equipment?\u003c\/strong\u003e This model is specifically designed for \u003cstrong\u003efan-assisted gas\u003c\/strong\u003e, oil, and solid fuel applications. For natural gas or LP applications with certain venting configurations, verify if a \"G\" series double-acting control is required.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWhere should this draft control be installed?\u003c\/strong\u003e For maximum accuracy, it should be installed in the vent pipe between the heating appliance and the chimney, following the \u003cstrong\u003eTjernlund DC4 installation\u003c\/strong\u003e guidelines regarding clearance and positioning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong style=\"color: red;\"\u003eThis item is not eligible for free shipping.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.\u003c\/p\u003e","brand":"Tjernlund Products","offers":[{"title":"Default Title","offer_id":43465312272562,"sku":"DC4","price":147.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/files\/Pic_4e84fa20-d0b4-45a8-9ec9-58e336775911.png?v=1701807524","url":"https:\/\/www.gsistore.com\/en-ca\/products\/tjernlund-products-dc4","provider":"GSIstore","version":"1.0","type":"link"}