Furnace tune up and preventative maintenance on Rheem 96% high efficiency variable speed 2 stage unit. Replaced aprilaire Merv 11 filter and humidifier panel. Flushed out condensate drains and pumps as well. HVAC service, repairs, install and indoor air quality in and around Palatine, Wheeling, Rolling Meadows, Itasca, Schaumburg, Arlington Heights, Elk Grove Village, Elgin, Des Plaines, Wood Dale, Hoffman Estates, Roselle, Prospect Heights, Buffalo Grove, Long Grove, Vernon Hulls and mor