High-efficiency boilers, water heaters, pool heaters, and commercial package systems engineered for residential and commercial hot water solutions.
Since 1939, Lochinvar has delivered energy-efficient hot water and space heating equipment built for system designers, installing contractors, engineers, and facility professionals. From condensing boilers and commercial water heaters to pool heaters, storage tanks, and rough-in accessories, Lochinvar continues to support residential, commercial, and industrial heating systems across North America.
Flagship commercial condensing gas-fired boiler delivering up to 96.2% thermal efficiency with smart-sensing combustion technology that auto-adapts to temperature, barometric pressure, and load changes for the highest seasonal efficiency in its class.
Lochinvar hot water solutions built for contractors and facilities
Lochinvar manufactures commercial and residential boilers, condensing and tankless water heaters, heat pump water heaters, pool and spa heaters, storage tanks, and a broad range of options and accessories used across residential, commercial, and industrial projects. Headquartered in Lebanon, Tennessee, and part of A. O. Smith Corporation, Lochinvar supports professionals with energy-efficient equipment engineered for application flexibility, sophisticated controls, and long-term system performance.
Lochinvar's portfolio spans flagship commercial boiler families including Crest® (with Hellcat™ combustion), FTXL™, Knight® XL, and Noble®, giving contractors access to jobsite-tested condensing solutions across key heating categories.
Flagship commercial condensing gas-fired boiler with up to 96.2% thermal efficiency and smart-sensing combustion technology that auto-adapts to load, temperature, and barometric changes.
Natural gas fire tube condensing boiler, 121,500–850,000 BTU/HR input, up to 10:1 turndown, with SMART SYSTEM™ control and CON-X-US® remote connectivity.
Natural gas condensing heating boiler, 160,000–800,000 BTU/HR input, 94% thermal efficiency, stainless steel water tube heat exchanger, with SMART SYSTEM™ control and CON-X-US® connectivity.
Browse the Macomb Group catalog for contractor-grade boilers, water heaters, pool heaters, storage tanks, and boiler controls designed to keep projects moving.