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  We manufacture a complete line of automated heating controls for the HVAC/R and plumbing industry in our USA factory. Our many innovations in the hydronic outdoor reset controls, steam outdoor reset , and Internet, BACnet, and MODBUS communication combined with over 60 years of experience, ensures that our designs, tests, and manufacturing builds energy efficient HVAC control systems which are easy to install and use while maximizing fuel savings and comfort.
  Heat-Timer HVAC heating controls
2, 3, and 4 Way Motorized Valves Modulating Controls Sequencing Controls
Communications Motorized Valves and Controls Snow Melt Controls
Condensing Boiler Controls OBSOLETE Products Steam Heating Controls
Digital Set Point Controls Pump Controls Steam Outdoor Reset
Domestic Hot Water Controls Radiant Controls and Valves Tempering Valves
Hydronic Heating Controls Sensors VARIVALVE® Radiator Air Vents
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