HydroTherm
The KN-10 gas-fired boiler features a self-adaptive design that is tolerant to changing conditions and Tru-Flow™ technology to control air fuel mixture at all firing rates and venting conditions. The boiler's cast iron heat exchanger accepts a wide range of water flows, and has 1 MBtuh input capacity with efficiencies up to 93% and 3 to 1 capacity modulation.