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What is a Draft Inducer in a Furnace?

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Jerry Kelly Heating And Air Conditioning Digital Scheduling Board

Modern day furnaces have a number of features that make them more efficient,
safe and powerful than older systems. Many of these features have become
standard components of every new furnace, and they now play an integral
part in the heating process. One such feature is a draft inducer. Today
we’re going to talk about what a furnace draft inducer is, how it
works and how it improves the performance of your heating system!

WHAT IS A DRAFT INDUCER?

A draft inducer is a fan that’s located in the compartment that houses
your furnace’s burners. This is not to be confused with your furnace’s
air handler, which is the fan that delivers warm air to your home via
the ductwork. The draft inducer is designed specifically to ensure that
combustion gases are properly vented out of your furnace and that heat
is distributed evenly throughout the walls of your heat exchanger.

How does a draft inducer work?

When your furnace begins a heating cycle, the draft inducer is one of the
first components to start up. The draft inducer fan will spin for 30-60
seconds before the burners are actually ignited. This serves two purposes.
First, it pushes out any combustion gases that were still inside of the
combustion chamber after the previous heating cycle. Those gases are directed
into your furnace’s flue pipe and out of your home. Second, it ensures
that combustion gases are distributed evenly inside of your heat exchanger,
which maximizes the heat exchanger’s effectiveness.

How does a draft inducer improve the performance of your furnace?

If you have any questions about a draft inducer in a furnace, or if you’d
like a heating system serviced or installed in your home, contact Jerry
Kelly, your
St. Charles, MO, furnace installation and repair contractor. We provide service all over the St. Louis area, including towns like
Weldon Spring, Wentzville and Winghaven, MO.

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