I own an old house. Some of the rooms in the house that are too far away from the furnace are not getting enough air, the airflow is too weak. I tried to close as many of the other ones as possible, but the airflow is still too weak. I am going to be installing a booster fan. Not sure which one yet, because I have a rectangular duct. Once I install the fan I don't want it to be on all the time. I want to only turn it on when the furnace fan is working. My furnace fan is always in Auto mode. What's the best way to do this?
- It has been suggested to me to use a pressure sensor and put it in the duct somewhere near a furnace. This way, no need to wire into the furnace.
- Should I just find the pins that connect to the actual fan inside the furnace?
- Are there pins on the control board of my furnace that I can use for this purpose?
I spent a few hours searching, but I can't find any actual solutions to my problem. Seems like such a common thing.