{"title":"Boilers \u0026 Heating","description":"\u003cdiv style=\"font-family: Arial, sans-serif; font-size: 15px; color: #333333; line-height: 1.6;\"\u003e\n  \u003cp\u003e\n    As an undisputed leader in high-efficiency thermal engineering, \u003cstrong\u003eLochinvar®\u003c\/strong\u003e delivers industry-defining condensing boilers, commercial water heaters, and integrated hydronic systems. Renowned for pioneering low-NOx burner systems and rugged fire-tube designs, Lochinvar components deliver exceptional thermal efficiency and pinpoint temperature control to mechanical rooms worldwide.\n  \u003c\/p\u003e\n  \n  \u003cp style=\"margin-top: 15px; font-weight: bold;\"\u003eBrowse our submittal-ready inventory of genuine Lochinvar equipment:\u003c\/p\u003e\n  \n  \u003cul style=\"margin-top: 5px; padding-left: 20px;\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCommercial Condensing Boilers:\u003c\/strong\u003e Featuring advanced single-pass wave fire-tube heat exchangers built to achieve up to 96.2% thermal efficiency while maintaining low waterside pressure drops.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePrecision Modulation \u0026amp; Control:\u003c\/strong\u003e Equipped with ultra-wide turndown burner systems and smart touchscreen remote diagnostics to seamlessly adjust heating output for facility demands.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIndustrial-Grade Plant Design:\u003c\/strong\u003e Engineered to integrate flawlessly into complex primary or variable full-flow configurations without requiring extensive piping networks.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e","products":[{"product_id":"lochinvar-crest-slimshield-1-0-million-btu-commercial-condensing-boiler","title":"Lochinvar Crest SlimShield 1.0 Million BTU Commercial Condensing Boiler – Model FBN1001","description":"\u003cp\u003eThe Lochinvar Crest SlimShield is a high-capacity, 1.0 Million BTU commercial condensing boiler engineered for exceptional thermal efficiency and maximum output within an ultra-narrow footprint. Featuring advanced modulating burner technology and a robust stainless steel fire-tube heat exchanger, the Crest SlimShield series delivers an outstanding \u003cb\u003e96.2%\u003c\/b\u003e thermal efficiency rating, making it the premier choice for large-scale institutional retrofits, district heating, and demanding commercial new construction projects.\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eKey Performance Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cb\u003ePatented Wave Fire-Tube Heat Exchanger:\u003c\/b\u003e Built with a premium, corrosion-resistant stainless steel heat exchanger that optimizes heat transfer while providing superior resistance to thermal stress and varying flow rates.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eSlimShield Space-Saving Profile:\u003c\/b\u003e The advanced vertical cabinet design allows this 1.0M BTU powerhouse to easily roll through standard 36-inch commercial doorways, drastically simplifying rigging and mechanical room installations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eSmartTouch Control Integration:\u003c\/b\u003e Equipped with a built-in touchscreen control system that offers outdoor reset functionality, cascading controls for up to 8 boilers, and seamless BMS communication protocols.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003e20:1 Turndown Modulating Burner:\u003c\/b\u003e Precisely matches building heat loads down to 5% of maximum output, eliminating short-cycling and radically reducing seasonal fuel consumption.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cb\u003eApplication \u0026amp; Engineering Compliance:\u003c\/b\u003e The Crest SlimShield supports versatile venting options using PVC, CPVC, Polypropylene, or Stainless Steel. It is ASME certified, CSA design certified, and meets the most stringent Low-NOx emission standards required for modern green building compliance.\u003c\/p\u003e","brand":"Lochinvar","offers":[{"title":"Default Title","offer_id":42829283328094,"sku":null,"price":52726.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/Lochinvar-Crest-FBN1001-Commercial-Boiler.jpg?v=1780919632"},{"product_id":"wm-lgb-5","title":"Weil-McLain LGB-5 Cast Iron Gas Boiler","description":"\u003cdiv style=\"font-family: Arial, sans-serif; font-size: 15px; color: #333333; line-height: 1.6;\"\u003e\n  \u003cp\u003e\n    The \u003cstrong\u003eWeil-McLain® LGB Series 5\u003c\/strong\u003e is a high-capacity, atmospheric-vented cast iron sectional gas boiler engineered to deliver rugged, dependable low-pressure hot water or steam heating across light-to-medium commercial architectures. Formed from high-grade, precision-cast iron sections that retain their tough natural outer skin, the LGB-5 offers superior structural resistance against scaling and fireside corrosion while acting as a massive thermal reservoir for demanding building distribution loops.\n  \u003c\/p\u003e\n  \u003cp style=\"margin-top: 15px;\"\u003e\n    By featuring high-performance aluminized steel burners and a compact mechanical design, this series facilitates straightforward installation in space-constrained mechanical rooms, allowing individual sections to navigate easily through standard doorways for on-site knockdown assembly. Watertight port seals are achieved using modern flexible elastomer sealing rings that cleanly accommodate structural expansion and contraction cycles, working alongside straightforward mechanical controls to ensure continuous operational uptime without the vulnerabilities of intricate microcircuit components.\n  \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Weil-McLain","offers":[{"title":"Default Title","offer_id":42839826104414,"sku":"WM-LGB-5","price":14800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/weil-mclain-lgb-series-commercial-gas-boiler.png?v=1781146641"},{"product_id":"wm-lgb-6","title":"Weil-McLain LGB-6 Cast Iron Gas Boiler","description":"\u003cdiv style=\"font-family: Arial, sans-serif; font-size: 15px; color: #333333; line-height: 1.6;\"\u003e\n  \u003cp\u003e\n    The \u003cstrong\u003eWeil-McLain® LGB Series 6\u003c\/strong\u003e is a commercial-grade, atmospheric-vented cast iron sectional gas boiler engineered to supply dependable, low-pressure hot water or steam heating across light-to-medium commercial facility plants. Built with premium, precision-cast iron sections and durable sealing rings, the LGB-6 provides long-term corrosion resistance, excellent structural thermal retention, and a classic robust footprint that easily absorbs the stress of large hydronic distribution loops.\n  \u003c\/p\u003e\n  \u003cp style=\"margin-top: 15px;\"\u003e\n    Featuring high-efficiency aluminized steel burners and a clean, low-profile layout, this boiler is designed for space-constrained mechanical rooms, allowing individual sections to be maneuvered through standard commercial door frames for simple on-site block assembly. Its high-grade cast iron construction acts as a highly reliable heat reservoir, delivering quiet thermal distribution, low stack temperatures, and straightforward mechanical controls that remove the vulnerabilities of complex modern electronic diagnostic arrays.\n  \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Weil-McLain","offers":[{"title":"Default Title","offer_id":42839826137182,"sku":"WM-LGB-6","price":17130.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/weil-mclain-lgb-series-commercial-gas-boiler.png?v=1781146641"},{"product_id":"lv-crest-fb0750","title":"Lochinvar Crest 750000 BTU Condensing Boiler","description":"\u003cdiv style=\"font-family: Arial, sans-serif; font-size: 15px; color: #333333; line-height: 1.6;\"\u003e\n  \u003cp\u003e\n    The \u003cstrong\u003eLochinvar Crest® FBN0751\u003c\/strong\u003e is a commercial floor-mount condensing gas boiler delivering a precise input of 750,000 BTU\/hr and a thermal efficiency rating of up to 96.2%. Engineered to revolutionize modern hydronic heating plant design, the Crest series utilizes a highly advanced, single-pass Wave Fire-Tube heat exchanger construction. This design achieves exceptional heat transfer while keeping waterside pressure drops low, allowing easy integration into variable primary or full-flow configurations without complex primary\/secondary piping.\n  \u003c\/p\u003e\n  \u003cp style=\"margin-top: 15px;\"\u003e\n    Equipped with a top-mounted micro-metal fiber burner and a negative regulation combustion framework, the boiler delivers smooth, quiet operation with an ultra-wide 15:1 modulation turndown ratio. It runs reliably even under drops in local utility gas pressures down to 4 inches water column. System diagnostics are managed through Lochinvar's signature SMART TOUCH™ touchscreen dashboard featuring CON·X·US® remote connectivity, letting facility teams monitor operation or adjust parameters from a remote location.\n  \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Lochinvar","offers":[{"title":"Default Title","offer_id":42839826399326,"sku":"LV-CRST-FB0750","price":14850.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/Lochinvar-Crest-FBN1001-Commercial-Boiler.jpg?v=1780919632"}],"url":"https:\/\/nationalboilersupply.com\/collections\/boilers-heating.oembed","provider":"National Boiler Supply","version":"1.0","type":"link"}