Problem: The old gas/electric furnace in this 25-year-old Boise, ID fourplex needed replacement. The owner wanted to upgrade the system to give each apartment more control over the individual temperatures.
Solution: Installed a new Mitsubishi ductless heating and cooling system. This mini split setup uses one heat pump with air handlers in each apartment. Each indoor unit has a thermostat, so they can all be set independently of the others.