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The Room thermostat bridge is a wiring accessory used to connect or bypass thermostat terminals in heating systems. This bridge allows for proper electrical connections between the thermostat and the boiler control board, enabling accurate temperature regulation. When installing or replacing a room thermostat, this bridge ensures a secure and correct wiring setup. It is a simple yet essential part for heating system installers and repair technicians. Compatible with many boiler models, it helps achieve reliable thermostat operation.