| Honeywell 220 - Is sail switch needed with Trane furnance?
How can I tell if the Sail switch is needed for the humidifier install? Directions state some furnaces don't need sail switch. Furnace: TraneXR90 (UX-C)
Thanks!
Also, is it better to hook to hot or cold water line? How many gallons flow through in a cold day with the furnace running? |