Patterson-Kelley’s rugged, dependable, reliable commercial instantaneous and semi-instantaneous water heaters products include a wide array of direct and indirect water heating systems. Our product line includes the PK Compact® Water Heater (a high-output heater for commercial, institutional and industrial buildings), the PK Thermific® water heater system (a high-efficiency, direct or indirect, gas-fired water heating package), the PK Control-Flo® Storage Water Heater, and the PK MACH CI Water Heater System (a condensing indirect water heating system with ultra-high fuel efficiency and low maintenance and aftermarket costs).

Instantaneous Water Heaters | Semi-Instantaneous Water Heaters | Hot Water Heaters | Indirect Heaters | PK Compact® Water Heater | PK Control-Flo® Storage Water Heater | PK MACH CI Water Heater System