What Is a Heat Exchanger and How Does It Work
There’s probably a lot that you don’t know about the heating equipment in your O’Fallon, MO, home. From your furnace’s electric ignition switch to its venting system, there are many important components working together to provide an even and consistent stream of heat. Among these is your furnace’s heat exchanger. Much like its name implies, the heat exchanger is where heat transfer occurs. Positioned just below the combustion chamber and the furnace blower, it has a major role in determining just how efficient and safe your furnace is. How a Heat Exchanger Works Heat exchangers are L-shaped metal shells with multiple internal and external tubes. This shell-and-tube configuration minimizes thermal energy loss during heat transfer. When your furnace burns or combusts fuel, the hot exhaust gases from this process leave the combustion chamber and enter the heat exchanger, where their heat is absorbed. As filtered air is blown across the exchanger, it collects this heat before entering your ductwork and being distributed throughout your home. Heat exchangers experience regular and significant fluctuations in temperature along with incredibly high levels of heat. Their all-metal design makes them excellent heat conductors. This also makes them resistant to temperature-related cracking. Cracked Heat Exchangers...
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