I have a finished basement with my HVAC system and water heater in a separate room. The basement is approximately 1800 sf. I have 5 air ducts for heat and AC in the main part of the basement and one in what was designed as a bedroom. I have one 8" X 12" cold air return located near the floor just outside the HVAC room.
After conducting many air quality tests in the basement I found I had a high concentration of radon gas using a store bought in home test kit. After getting a positive result with the kit I purchased an Airthings air monitor which monitors a number of things such as radon, temperature, co2, particulate matter, humidity, and more.
I had a radon mitigation system installed in the spring which took care of the radon problem. Now, in the summer months with the A/C running I have humidity readings at or above 70 percent. Since, I have purchased a dehumidifier (rated at above 3000 sf) and the unit literaly, never shuts off until I raise the humidity setting to 60 or above. At this point the humidity rises to around the 70 percent range within a couple of hours of changing the setting.
Realizing that I only have one small return vent, my initial thought was that I just need to add additional return vents. After reading other posts in this forum I realize I need professional advice.
What would the solution be?
After conducting many air quality tests in the basement I found I had a high concentration of radon gas using a store bought in home test kit. After getting a positive result with the kit I purchased an Airthings air monitor which monitors a number of things such as radon, temperature, co2, particulate matter, humidity, and more.
I had a radon mitigation system installed in the spring which took care of the radon problem. Now, in the summer months with the A/C running I have humidity readings at or above 70 percent. Since, I have purchased a dehumidifier (rated at above 3000 sf) and the unit literaly, never shuts off until I raise the humidity setting to 60 or above. At this point the humidity rises to around the 70 percent range within a couple of hours of changing the setting.
Realizing that I only have one small return vent, my initial thought was that I just need to add additional return vents. After reading other posts in this forum I realize I need professional advice.
What would the solution be?
