Safety and PPE Items are Available

Order Now

8 Most Important Parts of Your HVAC System - PartsAPS

important parts of hvac system

If you want to get the comfort of your family throughout the seasons of the year, you should use an efficient HVAC system. This is the climate control device and responsible for Heating, Ventilation, and Air Conditioning your home. So, you have to know the facts about necessary parts of HVAC system and find out the role of each component in keeping your home cool in summer and hot in winter.

When your system stops working, you can fix it yourself easily by knowing the HVAC components working process and get it back in correct operation mode quickly. To help you more, here we have provided some HVAC system parts and their working procedure briefly.

  1.  Thermostat
  2.  Heat Exchanger
  3.  Blower Motor
  4.  Combustion Chamber
  5.  Duct Work
  6.  Vents
  7.  Compressor or Condenser Coil
  8.  Evaporator Coil

Essential Parts of HVAC System

It can help you to know some of the important HVAC systems components and understand what's going on if you have any problems with your cooling and heating system.

1. Thermostat

The Thermostat acts as the interface of your HVAC unit that allows you to manage the temperature. It can be set on either programmed in advance or manually to keep the building at your needed temperature. When the prerequisite temperature becomes too hot or cold, the thermost6at will trigger the heat exchanger to circulate the warmed or cooled air as required.

2. Heat Exchanger

The heat exchanger is one of the main parts for HVAC system that will be used mainly on your furnace or heater. This heat exchanger warm-up the air quickly and that air is blown into your home.

When the thermostat senses that the room temperature has fallen below the specified level, the exchanger is responsible to tend to your heat needs by warming the air. It pulls in cold air, heats it, and circulates the resulting warmed air through your ducts and out via the vents.

3. Blower Motor

The blower motor is used in your HVAC equipment for blowing cooled or heated air into your home by a fan. When this motor on, it pushed the air via ductwork, which allows it to spread all over your home. The combustion process ends before the blower motor stops to make sure that the warm air from the duct and the heat exchanger reaches your area.

When your system running with variable speed motor, it will run at different speeds at various times as per your home's heating requirement. Therefore, it increases efficiency and reduces energy bills. Keeping your requirements in mind, we are providing various brand blower motors for your heating, ventilation, and air conditioning equipment.

4. Combustion Chamber

The combustion chamber in a furnace is also called a burner. When the air enters the combustion chamber, the cycle will be started. Although, some furnaces will have another combustion chamber to catch and compress carbon monoxide and unburned fuel. It will give your furnace with better efficiency.

The problem with this involved electronic ignition systems that can be damaged or malfunctioned. Therefore, buy excellent and efficient gas burners to use in your furnace.

5. Duct Work

Ductwork nothing but the system of ducts and looks like metal tubes running inside your walls or ceiling. It helps to transfer the air into your house from the HVAC system through the vents. Ductwork plays a major role in the cooling and heating of your home. Generally, these are made up of aluminum as well as manufactured from steel, plastic, fiberglass, fabric, or polyurethane.

6. Vents

It is one of the visible parts of the heating, ventilation, and air conditioning system. Vents connect to the ducts and allow the air to flow throughout individual rooms of your home. These will work without any help from interference. Vents direct the air down to where you are using the space. There may be a chance to control them manually to control the amount of directed warming and cooling in your living area.

You need to check to make sure there is no dust or dirt on the vents that might be a cause your ducts are dirty. Therefore, cleaning should be required every once in a while.

7. Compressor or Condenser Coil

This is one of the most needed HVAC system parts. A compressor or condenser coil helps keep your home cool. Mostly, heat pumps and central air conditioning units have made with these outdoor components. Condenser coil transfers the warm into the outside air and then cool building through condensing refrigerant. Compressors are susceptible to damage if they block airflow into these systems.

By compressing the heated air into a condensed liquid. The coil releases the warm into the outdoor environment which is gathered from your house. Moreover, it has a fan that blows air over it to cool the refrigerant and spread the heat. You have to clean the HVAC condenser system frequently to ensure efficient functionality.

8. Evaporator Coil

Evaporator coil also a necessary part of your heat pumps and air conditioners. It contains a refrigerant that absorbs heat and sends the cool air into your home. It helps you lower the humidity in your house.

These coils have become frozen easily if there is a refrigerant leak because they have too much moisture on them. Finally, ice and mold can decrease your air quality and may also cause your total system breakdown.


We hope you got an idea of important parts of HVAC system and their working procedure. If you have any doubts, please leave a comment in the below box. Or, if you want to upgrade your system with replacement parts, then choose our PartsAPS store. We are the distributor of HVAC parts. So, you can get your required parts including the above for your HVAC system from us directly.

About the Author


Haritha is a Content Writer at PartsAPS. She has a great understanding of today's marketing strategies that yield strong results and always happy to create valuable content & share her thoughts.

She was good at writing content for E-Commerce websites related to Restaurant Equipment Parts, Appliance Parts, Food Service Parts, HVAC Parts, etc.

You can see some her contributions at,,

Preset Color