{"product_id":"weil-mclain-383-500-734-high-efficiency-boiler-94000-btu","title":"Weil-mclain 383-500-734 High Efficiency Boiler 94000 Btu","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe WEIL-MCLAIN 383-500-734 is a high-efficiency condensing boiler designed for hydronic heating systems in residential and light commercial applications. Rated at 105,000 BTU input with a DOE output of 94,000 BTU and an IBR net rating of 81,000 BTU, this unit operates at 94% efficiency. It runs on natural gas or propane and uses electronic ignition with spark-assisted startup. The slate gray cabinet measures 22.8125 inches wide, 19.9375 inches deep, and 43.0625 inches tall. Installation and commissioning must be performed by a licensed heating professional in accordance with applicable codes and manufacturer instructions.\u003c\/p\u003e\n\u003cp\u003eThe 383-500-734 is built for forced hydronic heating installations where high efficiency and low operating costs are required. It supports direct vent configuration using PVC or AL29-4C flue material in 2-inch or 3-inch vent sizes, making it adaptable to a range of venting scenarios. The 1-inch water connection and 1\/2-inch gas connection are standard for typical residential boiler installations. This is a Series 4 unit compatible with both natural gas and LP fuel supplies, giving installers flexibility across different fuel-supply environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e94% efficiency condensing operation reduces fuel consumption versus standard boilers\u003c\/li\u003e\n  \u003cli\u003e105,000 BTU input with 94,000 BTU DOE output and 81,000 BTU IBR net rating\u003c\/li\u003e\n  \u003cli\u003eDual fuel capability: operates on natural gas or propane\u003c\/li\u003e\n  \u003cli\u003eDirect vent design supports PVC or AL29-4C flue in 2-inch or 3-inch diameter\u003c\/li\u003e\n  \u003cli\u003eElectronic ignition with spark startup — no standing pilot\u003c\/li\u003e\n  \u003cli\u003e15-year limited heat exchanger warranty; 1-year parts warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a hydronic heating boiler for residential and light commercial systems requiring a high-efficiency, direct-vent condensing unit with natural gas or LP fuel supply. Consult WEIL-MCLAIN documentation for system design requirements and compatible controls.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis boiler must be installed, commissioned, and serviced by a licensed heating or plumbing professional in compliance with local codes, IFGC requirements, and manufacturer instructions. Shut off gas supply and disconnect electrical power before servicing. Verify vent material compatibility — use only approved PVC or AL29-4C flue systems in the specified diameter. Warranty and technical support are available only through the licensed professional responsible for the installation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBTU Input\u003c\/strong\u003e: 105,000 BTU\/h\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDOE Output Rating\u003c\/strong\u003e: 94,000 BTU\/h\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIBR Net Rating\u003c\/strong\u003e: 81,000 BTU\/h\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEfficiency\u003c\/strong\u003e: 94%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuel Type\u003c\/strong\u003e: Natural Gas or Propane (LP)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIgnition\u003c\/strong\u003e: Electronic Ignition \/ Spark\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoiler Type\u003c\/strong\u003e: High Efficiency Condensing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem Type\u003c\/strong\u003e: Hydronic (Water)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVent Type\u003c\/strong\u003e: Direct Vent — PVC or AL29-4C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVent Size\u003c\/strong\u003e: 2 inches or 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWater Connection\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas Connection\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 22.8125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDepth\u003c\/strong\u003e: 19.9375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 43.0625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Slate Gray\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty\u003c\/strong\u003e: 15-Year Limited (Heat Exchanger), 1-Year (Parts)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 383-500-734\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WEIL-MCLAIN","offers":[{"title":"Default Title","offer_id":51668802961714,"sku":"383-500-734","price":4852.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/84316cfb673d06ef59d743dbc7d04a03.jpg?v=1787952352","url":"https:\/\/voomisupply.com\/products\/weil-mclain-383-500-734-high-efficiency-boiler-94000-btu","provider":"Voomi Supply","version":"1.0","type":"link"}