Unless you’re a well-trained HVAC specialist with proper working tools, installing a HVAC system on your own is nearly impossible. It’s like replacing your car engine on your own. But even if you’re well trained, there are certain things you ought to know as a homeowner before carrying out heating and air conditioning systems installation. Before you learn about important things to know about HVAC installation, it’s equally important to know how HVAC systems work.

How do HVAC systems work?

To understand how a HVAC system works, you need to be familiar with HVAC system working principle and the nine primary components that make it. These components include: air return, filter, ducts, exhaust outlets, outdoor unit, electrical elements, coils, compressor and blower.

The air return acts as the starting point of the ventilation cycle and it sucks in air, then draws it via a filter. The filter is the part where air is drawn through. Exhaust outlets expel exhaust formed by the heating system. Ducts act as a passage through which cooled or heated air pass.

Electrical elements are all the parts in your system that help transmit power. Outdoor unit is the part that houses the fan. Compressor is part of the outdoor unit and its role is to convert refrigerant from a gas to liquid, then transports it to the coils. Coils are part of the outdoor unit and their role is to cool down air that passes through it, with some help from the refrigerant. A blower’s role is to draw in warm air via the main section of the unit.

What to know about HVAC installation

Being aware of the below four things will not only help you better understand your HVAC system, but they’ll also save you time when you need a HVAC specialist to help with maintenance or installation.

Brand name and model.

Not all HVAC systems are the same. Knowing who manufactured it will help you know if you like the quality of that manufacturer, or if you want to try out other brands for your next HVAC purchase.

HVAC system type and operation options.

HVAC systems are constantly improved every year to boost their operational efficiency. System type could include traditional ACs, heat pumps, ductless mini-splits etc. Having knowledge on these system types could help you know what’s available to you for your next HVAC installation.


If you moved to a new home that was built over 12 years ago and you notice your HVAC doesn’t look new or recent, you may consider replacing it.

History of maintenance.

It’s important to keep track of your HVAC’s maintenance history. This will help any future HVAC specialist you call in better understand the current condition of your system, thus saving them time.

Hire the right HVAC specialist – Moncrief Furnace Repair & Installation Atlanta

Contact Moncrief Heating and Air Conditioning if you need heating and air Atlanta or Heating and Air Roswell. Moncrief Heating & Air Conditioning has been serving Metro Atlanta for over 120 years and has been a leader in providing the latest home comfort technology to Atlanta residents of all backgrounds.

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Oscar Jude Thompson: Oscar, a home renovation contractor, shares DIY project guides, renovation tips, and ideas for transforming homes.

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