High Efficiency Furnace and Air Conditioning on Sale Now! Novak Heating & A/C Inc. serving the Cedar Rapids metro area since 1934. We specialize in residential and commercial HVAC, selling, servicing and installing energy efficient furnaces, central air, humidifiers, thermostats, air purifiers, zoning systems, fireplace repair and geothermal HVAC. Novak Heating is the only Carrier Factory Authorized Dealer in the area. We service most brands, offer financing and provide factory trained technicians. Our duct cleaning division also serves the residential and commercial market. Our vac truck is among the most powerful on the market! It is great at cleaning dryer vents as well. Call us today for a free estimate or to get more information on available rebates and tax credits.