I am in need of a little guidance. I am renovating a 1300 square foot Cape and plan on adding spray foam insulation in the walls and rafters making hte house much tighter.
Since the house will be used on weekends only I plan to add a heat recovery ventillator to allow air changes. Should the ventillator be placed on the ground floor which has the larges area (1000SF) or on the second floor where the heat will rise to? Or should I be adding two ventillators (I'd rather not and the house is fairly small)