Featuring a 95% AFUE rating, the Weil-McLain ECO Tec meets nearly all residential space and domestic hot water heating needs, including multi-zone and combi-applications.
U.S. Boiler Co.’s Alta line of condensing boilers and combi-boilers features next-generation gas-adaptive technology that provides the shortest installation time and lowest operating costs.
Instinct floor standing boilers include a Caleffi 548 Series separator, left or right-side boiler/gas connections, Wi-Fi connectivity, CTRLMAX 60-second setup, a stainless-steel fire tube heat exchanger, a piece- of-mind warranty, and Combi-units have incredible 5-plus- gpm DHW output, Caleffi explains. Available in Solo 110, 155, 199 and Combi 155, 199.
Navien NFB-H condensing fire tube boilers feature turndown ratios up to 15:1, an advanced user interface with intuitive text display and easy-to-use Setup Wizard, 2" venting up to 65', and built-in hardware to connect a boiler system pump, 3 zone pumps or 3 zone valves.
With the Bosch Singular combi-boiler, one system satisfies two household needs: heating and hot water. Featuring 95% AFUE efficiency, the Singular provides efficient, dependable home heating and up to 7.7 gpm of domestic hot water production.