Thanks to all:
This house is in South Jersey with reasonable construction materials. I am not incorporating an HRV, and the exhaust is not extremely large.
Dan
I am designing a 7,500 house with hot water radiant floors. I have specified approx 300MBH boiler. The architect has specified "Warm board", which claims to increase the response time to heating the house. Now the architect is suggesting that I put heat in the air handing system also. Do you...