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For most homeowners who have limited mechanical and technical knowledge, regular and dependable heat supplied from a furnace seems almost magical. Staying comfortable in the winter is something we all tend to take for granted: until the heater stops working! Its operation is really no mystery at all, of course: here are the basic ABCs of how a furnace works and why it’s so important to keep yours in peak running order.

How It Works

The heat-producing component of a furnace is its burner. Most of today’s gas units have one or two of these burners and their operation is regulated by a thermostat. When the temperature in your house dips below the level set on the thermostat, gas begins to flow into the unit and is then ignited electronically. After passing through a heat exchanger, the combusted gas exits the house through a vent.

Fresh air intake into the furnace is extremely important, because it is that air that is drawn into the unit through a duct system and heated in the hot chamber;Utah heating contractor Utah Plumbing Any Hour Plumbing Salt lake plumbing drain cleaning Continue reading →