ERV or HRV?
I am planning on installing 2 minisplit heat-pump units to heat and cool a home we are building. It is a new home just south of Boston, MA, about 2,800 sq. ft., tightly constructed, R-35 walls, R-55 ceiling.
The Manual J and D calculations have been done, indicating I would need approximately 33,000 BTU to heat and under a 2-ton system to cool. I am planning on meeting with a minisplit heat-pump rep to discuss the best options for the home.
However, the engineer that performed the calculations for my home also recommended an ERV coupled with the minisplits for the most comfortable and efficient system. I am not clear on the differences between the HRV and ERV and am not sure which is best in my situation.
What I thought I understood from the engineer was that the ERV would assist in not only providing fresh air to the living spaces but also to move the conditioned air around the house. Is that accurate? I also feel that some of what I read about ERVs is that they are more for warmer climates, while HRVs are for cooler climates.
Any direction or feedback on this would be appreciated.