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Discuss Want to replace old thermostat with a Sensi Smart in the Central Heating Forum area at PlumbersForums.net

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Want to replace an old thermostat (heat only) with a Sensi Smart thermo. Same needs a C wire. Can I connect the C wire to to the pos terminal on the transformer on the boiler?
 

Reply to Want to replace old thermostat with a Sensi Smart in the Central Heating Forum area at PlumbersForums.net

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