It's cold outside!   You've checked the thermostat’s setting to make sure it’s on “Heat” mode. Then checked the temperature to make sure it’s set to one that’s higher than the current room temperature.  The furnace still isn't producing enough heat?  You need someone who will repair the system without charging an outrageous amount!  Or maybe you simply want to install a new system and are looking for a reliable, experienced HVAC Contractor? Give Kendal Air Heating & Cooling a call and join the many residents in Union County NC area that are sitting at home in comfort!