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Ultimate Guide To Understanding Your Home’s HVAC System


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Ultimate Guide To Understanding Your Home’s HVAC System

using a remote to control a mini HVAC unit


Imagine coming home after a long tiring day at work and feeling the cold air hit your face as you step inside. Suddenly, you’re transported into a world of comfort. HVAC systems have changed how we perceive our homes, providing a comfortable indoor environment, regardless of outside weather.

Heating, ventilation, and air conditioning (HVAC) systems are essential for maintaining your home’s temperature, humidity, and air quality. 

In this blog post, we will provide a comprehensive guide to help you understand everything about your home’s HVAC system. So, whether you’re considering buying a new system or want to learn more about your current one, this guide got you covered!

How Does An HVAC System Work?

HVAC systems come in various types, including air conditioning systems, heat pumps, and furnaces. Understanding how these work can help you decide when choosing the right HVAC system for your home.

Air Conditioning Systems

Air conditioning systems use a compressor, evaporator, and condenser to cool your indoor space. The compressor compresses the refrigerant, which makes it hotter and turns it into a gas. The refrigerant then flows to the evaporator, which cools the air as it passes through.

The cool air is redistributed throughout your home via ductwork. The refrigerant is then returned to the condenser, where it’s cooled and condensed into a liquid, ready to circulate again.

Heat Pumps

Heat pumps work by transferring heat energy from one location to another. The heat pump extracts heat from your home and expels it outside during the summer. In the winter, it works the opposite way, extracting heat from the outdoor air and bringing it inside to warm your home.


Furnaces use natural gas, oil, or electricity to generate heat. A gas furnace ignites the gas in the burner, creating heat distributed throughout your home via ductwork. Electric furnaces heat a series of coils, which are then used to heat the air.

Types Of HVAC Systems

There are many types of HVAC systems, including:

  • Split System: A split system consists of an outdoor unit that holds the compressor and condenser and an indoor unit that holds the evaporator. They work together to cool or heat your home!
  • Hybrid Heat Pump: A hybrid heat pump combines electric and gas heating, making it an energy-efficient option.
  • Ductless Mini-Split: A ductless mini-split heating and cooling system is a compact version of the split system and doesn’t require ductwork.
  • Packaged System: A system containing heating and cooling components can be installed on the roof or outside your home.
  • Ducted Mini-Split: A ducted mini-split system is similar to a ductless system but has ductwork to distribute air throughout your home.

What Does An HVAC System Include?

An HVAC system comprises several components that regulate your home’s temperature, humidity, and air quality. The primary components of an HVAC system include the thermostat, air handling unit, ductwork, and heating/cooling source.


The thermostat is your HVAC system’s brain; it regulates your home’s temperature. Modern thermostats come with programmable features that allow you to control your home’s temperature, humidity, and air quality more efficiently.

Air Handling Unit

The air handling unit comprises the heat exchanger, blower, and filter. It’s responsible for circulating the air throughout your home and extracting heat or cool air from the heating/cooling source.


Ductwork is the piping that distributes hot or cold air throughout your home. It works hand in hand with the air handling unit to deliver air through various vents into different rooms.

Heating/Cooling Source

The heating/cooling source is the component of an HVAC system that generates hot or cold air. Depending on your HVAC system, it could be an air conditioning system, heat pump, or furnace!

Contact Robert & Sons A/C & Heating, LLC. For Your HVAC Needs!

Whether buying a new system or repairing an existing one, working with a reputable and experienced HVAC technician is important. Robert & Sons A/C & Heating, LLC. is a HVAC contractor with a wealth of experience in the industry. We hold an A+ rating from the Better Business Bureau and are members of the Air Conditioning Contractors of America (ACCA).

With our knowledge and expertise, you can trust us to help you choose the right HVAC system for your home and keep it running smoothly for years. Contact us to ensure the continued comfort and safety of your home.