{"product_id":"weil-mclain-381-359-365-cgi-7-cast-iron-gas-boiler-140000-btu-output-spark-ignition-power-vent-with-taco-007-circulator-series-5-natural-gas","title":"Weil-mclain 381-359-365 CGI-7 Cast Iron Gas Boiler 140000 Btu Output Spark Ignition Power Vent with Taco 007 Circulator Series 5 Natural Gas","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe Weil-McLain 381-359-365 is a CGI-7 Series 5 cast iron gas-fired hydronic water boiler built for residential and light commercial heating applications. This natural gas boiler delivers 141,000 BTU of output from a 190,000 BTU input, achieving an 84% thermal efficiency rating. The DOE heating capacity is rated at 162,000 BTU, and the IBR rating matches the output at 141,000 BTU. These figures make the CGI-7 a reliable choice for HVAC professionals sizing boilers for forced hot water heating systems in homes and smaller commercial buildings. The unit ships with a Taco 007 circulator pump pre-installed, streamlining the installation process and reducing field assembly time. Spark ignition provides dependable startup without a standing pilot flame, reducing gas consumption during standby periods. The power vent configuration allows flexible venting through a 3-inch vent connection, giving installers more placement options compared to natural draft units. The cast iron heat exchanger is the core of this boiler. Cast iron is a proven material in hydronic heating systems because it holds heat well, resists corrosion over time, and performs reliably through repeated heating and cooling cycles. Weil-McLain backs the heat exchanger with a 20-year warranty and covers parts for 2 years, reflecting confidence in the long-term durability of this design. The steel jacket is insulated to reduce standby heat loss and improve overall system efficiency. Water connections are sized at 1-1\/4 inches, and the gas connection is 3\/4 inches. The boiler operates on 120-volt power and includes a 30 psi pressure relief valve. The unit measures 28-3\/8 inches tall, 22 inches wide, and 23-1\/4 inches deep. Licensed HVAC technicians and plumbers working on hydronic heating retrofits or new installations will find the CGI-7 Series 5 a straightforward, well-supported product from a manufacturer with a long track record in cast iron boiler manufacturing. Installation, commissioning, and service must be performed by a licensed professional in accordance with local codes and manufacturer guidelines.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e141,000 BTU output with 84% efficiency and a 162,000 BTU DOE rating for reliable hydronic heating performance\u003c\/li\u003e\n\u003cli\u003eCast iron heat exchanger backed by a 20-year warranty for long-term durability in residential and light commercial systems\u003c\/li\u003e\n\u003cli\u003eIncludes Taco 007 circulator pump and spark ignition; power vent design with 3-inch vent connection for flexible installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct Highlights\u003c\/h4\u003e\u003cp\u003eThe Weil-McLain CGI-7 Series 5 combines a durable cast iron heat exchanger, factory-installed Taco 007 circulator, and spark ignition in a power vent natural gas boiler rated at 141,000 BTU output. It is a dependable option for licensed HVAC professionals installing or replacing hydronic heating equipment in residential and light commercial settings.\u003c\/p\u003e\u003ch3\u003eProduct Information\u003c\/h3\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: WEIL-MCLAIN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 381-359-365\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Boiler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoiler Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type\u003c\/strong\u003e: Hydronic (Water)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Heating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Type\u003c\/strong\u003e: Natural Gas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type\u003c\/strong\u003e: Spark Ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVent Type\u003c\/strong\u003e: Power Vent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBTU Input\u003c\/strong\u003e: 190,000 BTU\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBTU Output\u003c\/strong\u003e: 141,000 BTU\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDOE Rating\u003c\/strong\u003e: 162,000 BTU\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIBR Rating\u003c\/strong\u003e: 141,000 BTU\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficiency\u003c\/strong\u003e: 84%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage\u003c\/strong\u003e: 120V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas Connection\u003c\/strong\u003e: 3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Connection\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVent Size\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Relief\u003c\/strong\u003e: 30 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 28-3\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 22 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth\u003c\/strong\u003e: 23-1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty\u003c\/strong\u003e: 20 Year (Heat Exchanger) \/ 2 Year (Parts)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WEIL-MCLAIN","offers":[{"title":"Default Title","offer_id":51121058480434,"sku":"381-359-365","price":5993.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/304883522.jpg?v=1777747226","url":"https:\/\/voomisupply.com\/products\/weil-mclain-381-359-365-cgi-7-cast-iron-gas-boiler-140000-btu-output-spark-ignition-power-vent-with-taco-007-circulator-series-5-natural-gas","provider":"Voomi Supply","version":"1.0","type":"link"}