tekmar

Tekmar 256 Boiler Control for 1-Stage Boiler

$399.00

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The Boiler Control 256 is designed to operate a single boiler using Outdoor Temperature Reset. It can be used in applications ranging from a single...

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Tekmar 521 Programmable Thermostat with Two Stage Heat or Heat-Cool Modes

$279.00

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The Programmable Thermostat 521 is designed for three different modes of operation: single stage heating, two stages of heating with a fan, or one stage...

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