AprilAire 210/1410/910 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 11, Clean Air & Dust, 20x25x4 Air Filter (each) Preformed heating maintenance. We tested all electrical components on the inside unit. All tested within manufacturer specifications. Changed the filter. Checked all electrical components on the outside unit all tested within manufacturer specifications. We found that the unit is a heat pump but set up for straight electric heat. We left estimates to covert the unit to a heat pump. Also provided estimates for a IAQ bundle and surge protection. Unit was cooling upon departure.
