I live in Wisconsin where the temp is cold for most of the year and very humid in summer. My home is 4 years old and I had an HRV installed after the first year because of the excessive moisture, ice, and frost on my windows. Even frost coming through the outside walls! The current temp outside at night is around 10F. My humidistat is set at about 50, I understand this needs to be lower the colder it is. In the morning, I have about 3 inches of condensation on one of the rooms in my house. The other rooms have about 1 inch condensation. When I set the humidistat below 50, it runs constantly for weeks, even months! Is this normal for it to run so long on a continual basis? Additionally, I have 2 fireplaces in my home which dry it out nicely during the day or at night, but then in the morning, the condensation has returned. There are 2 vents for the HRV in my living room, I believe 1 is intake (takes the indoor air out) and the other is exhaust (blows the fresh air in). Do I need more vents to remove the humidity better out of my home? We will only take 2 showers in our home per day and the fan in the bathroom runs for a good 30 minutes. I just don't know how to reduce this humidity without running the HRV constantly for months without it shutting off? Is this normal after 3 years in a new home?