Why is My Heater Blowing Cold Air?

Your heating system is blowing cold air. It’s starting to feel as cold inside as it is outside. If your furnace is blowing cold air, you could have one of several HVAC problems:

Your heating system is blowing cold air. It’s starting to feel as cold inside as it is outside. If your furnace is blowing cold air, you could have one of several HVAC problems: