Mestek Inc. introduces Ray, a high-efficiency, low-mass, fully condensing, cast-iron residential boiler.



Mestek Inc. introduces Ray, a high-efficiency, low-mass, fully condensing, cast-iron residential boiler. It uses SmartCycle technology, an on-board digital control that learns optimum cycling pattern/firing rates based on actual usage. This gas-fired boiler offers a maximum DOE heating capacity of 173,000 Btuh, making it ideal for today’s energy-demanding homes.

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