Heat Pump Questions

I own a twenty year old 2 zone HVAC house (upstairs and downstairs) in northern zone 5, Southern NH.  One of the condensers died this summer and I’m planning on… I own a twenty year old 2 zone HVAC house (upstairs and downstairs) in northern zone 5, Southern NH.  One of the condensers died this summer and I’m planning on…Read MoreGreenBuildingAdvisor