A small single-family home in the Bellingham area was remodeled to create space for a growing family. The remodel added insulation and air sealing to increase efficiency and comfort.  

The remodel dramatically reduced heating and cooling loads for the home; however, the  HVAC installer proposed to install multiple oversized heat pumps. These systems would have performed poorly and worn out early.

The architect brought us in to perform a Manual J load calculation, which showed that the proposed equipment was oversized by a factor of 225%. We were able to propose revisions that resulted in a more accurately sized, efficient system.