DIY Solutions for Fixing a Furnace Blowing Cold Air

gas furnace burners

Expert advice on how to troubleshoot a furnace that is blowing cold air through air vents. Includes both gas and electric furnaces.  If your furnace is blowing cold air: 1. Check the thermostat 2. Check pilot light and ignition system 3. Inspect the flame sensor 4. Inspect air filters 5. Verify air vents (registers) 6. […]

How an Electric Furnace Works

Cut-away diagram of an electric furnace, including parts and direction of cold and warm air.

An electric furnace is an environmentally friendly option, if you can afford the energy costs. Here is how an electric furnace works. Need Help NOW? Get a Local Heating Pro Fast! In some regions or circumstances, electricity is the preferred energy source for a forced-air heating system—though electric furnaces are quite uncommon because of the […]

How a Gas Furnace Works

Gas Furnace Parts Diagram

This illustrated guide diagrams the various parts of a gas furnace and explains how they all work together. A gas forced-air heating system goes into action when the thermostat tells it that the room temperature has dropped below a preset comfort level. The thermostat sends a low-voltage electrical signal to a relay in the furnace, […]

Buying a High-Efficiency Furnace

gas furnace burners

In This Article: How Efficiency Is Measured Energy-Saving Features How Much Does a Furnace Cost? Need help with your furnace NOW? Get a Local Heating Pro Fast! What is the best forced-air furnace to buy? This expert, unbiased furnace buying guide will help you choose between the major brands to find the right heater for […]