How do I hook up my humidifier to my furnace so it only runs when furnace heats my house. Just want to make sure it does not turn on when A/C in summer goes on. The person who installed my furnace did not hook it up and is not answering my calls. Thanks


On most newer furnaces, on the control board there are specific terminals for a humidifier. The engineers have built into this control board the exact criteria that you are looking for.

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