Profile: Horizon HVAC, Inc. is specialized in commercial heating & air-conditioning, equipment retrofit & replacement and installation services. Our products include furnaces, packaged heating and cooling systems, air handlers, dehumidifier, humidifiers, air cleaners, UV air purifiers and evaporator coils. Our furnaces heat and circulate warm air in the winter. Furnace heating ability is measured with an Annual Fuel Utilization Efficiency (AFUE) percentage. A higher AFUE percentage indicates a more efficient furnace. In a packaged system, all equipment are built into an outdoor unit, usually on a concrete slab or other platform.