The Most Important Parts of Your HVAC System

The Most Important Parts of Your HVAC System

An HVAC system keeps your home at a comfortable temperature, and also keeps your indoor air clean. Keeping your HVAC system running at an optimal level takes knowing what comprises the parts of your system. Learn what the critical components of your HVAC system are so you can work with your commercial HVAC contractor to keep expensive repairs at a minimum.

Your commercial HVAC contractor will know how to solve the problems if you have any. They can help you repair, maintain, and even install any heating and air conditions system, but if you know a bit about your system, you can intelligently tell your mechanic what could be wrong.

The Most Important Parts of Your HVAC System

Eight Vital Components of Your HVAC System

Blower Motors

After the heat exchanger receives the temperature reading you set, the blower motor starts. Blower motors move warm air through the duct system, and the heat eventually enters the air handling vents. Warm air is distributed throughout every room in your house. Blower motors also aid in keeping humidity at an acceptable level.

Combustion Chambers

The combustion chamber is one of the most vital parts of your furnace. The chamber combines a mixture of gases and air, and the result is the start of the heating or cooling cycle. The combustion chamber stores the heat in the furnace until it is blown throughout the duct system. The chamber also encapsulates carbon monoxide and turns it into natural gas.

Condensing System

The condensing system or the compressor usually sits on the outside of a home or building and can cool a building by releasing heat into the outside. Condensing systems contain refrigerant gases, and when a refrigerant is compressed into a cooling gas, the air is then released into the fan blower.


In and HVAC system, the unseen part of the system distributes air. Ductwork is located in walls and or ceilings and ends up at the registers or vents in the home or building rooms. The warm or cool air blowing through the system ends up at the vents where it is distributed.

Evaporator Coils

Evaporator coils are a necessity in any heat pump or air condition system. Often referred to as the evaporator core, they absorb heat that is generated during the refrigerant process. Usually, evaporator coils are located along the top or sides of your furnace. Evaporator coils allow your AC system to keep your building cool. The coils also bring heat indoors when the temperature drops.

Heat Exchangers

The heat exchanger contains the furnace and absorbs heat from the outside. The heat exchanger and bring in warm temperatures to the inside. All furnaces are equipped with heat exchangers, and it must be adequately maintained. Most heat exchangers are protected with layers of stainless steel and other temperature-resistant alloys.


Thermostats are generally centrally located in your home or building. These are temperature sensors that are connected directly to the HVAC system through wires that are made for your HVAC system. Thermostats notify the HVAC system to heat or cool to the set temperature and use sensors throughout your home.


Vents are the portions of your HVAC system where the warm or cool air is dispersed throughout your home or building. Typically made of metal or wood, vents are installed either on the floors or ceiling of your home. Vents are the ending point of ductwork and are usually grated.

Keep your HVAC system performing at peak performance by making sure you have it checked at least twice a year. Commercial HVAC contractors are trained in keeping your HVAC system operating at prime levels.