In today’s commercial boiler market, efficiency, durability and the environment are everything. The KN-Series has stood the test of time and has outperformed the competition in all facets.
A staple in the condensing boiler market for over 15 years and over 26,000 installations the KN-Series uses the durability and heat retention capabilities of cast-iron heat exchangers with state-of-the-art air/fuel delivery systems and the HeatNet control platform to outpace the competition keeping KN at the head of the class.
Rugged and long lasting, cast-iron is the ideal material for condensing boiler systems. KN-Series boilers are built to last the long haul and backed by the industry's best heat exchanger warranty. All heat exchangers carry a 25-Year non-prorated warranty* covering materials and workmanship against failure due to condensate corrosion and thermal shock.
*See KN-Series written Warranty for specific requirements.