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For Homeowners

What Is A Heat Exchanger?

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A heat exchanger in HVAC is a component used to transfer heat between two separate fluid streams without them mixing. In HVAC systems, it facilitates the exchange of thermal energy between indoor air and the refrigerant. This process enables both heating and cooling functions to effectively regulate indoor temperatures.

People Also Ask About Heat Exchangers

How do heat exchangers work in HVAC systems?

In cooling mode, indoor air passes over the evaporator coil’s heat exchanger. As refrigerant inside the coil evaporates, it absorbs heat from the air, cooling it down. In heating mode, the heat exchanger in a furnace transfers heat from hot combustion gases to the surrounding air, which is then distributed throughout the building.

What types of heat exchangers are used in HVAC systems?

Various types of heat exchangers are used in HVAC systems, including finned-tube heat exchangers, shell and tube heat exchangers, and plate heat exchangers. The specific type used depends on factors like the system’s capacity and efficiency requirements.

How do you maintain heat exchangers in HVAC systems?

Regular maintenance of heat exchangers is vital to ensure proper HVAC system operation. Cleaning and inspecting them for corrosion, dirt buildup, and damage is important for maximizing their efficiency and preventing potential issues that could affect heating and cooling performance.

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