The Importance of Your HVAC System

Due to Chicago’s wild climate changes, you have to pay attention to your home HVAC System, not doing so will cost you deary. Learning exactly what HVAC stands for may help you start building the knowledge you need to improve your control over your HVAC System and lower your energy costs.


Heating, the H in HVAC, usually comes from heat pump, but also refers to furnace & boiler. A furnace burns fuel, such as natural gas or propane, to create a flame. A fan in the furnace blows your home’s air over a heat exchanger, which moves heat from the flame into the air. The warm air continues into your ducts and out to your rooms.

A heat pump or furnace is, in essence, an air conditioner that can work in reverse. In heating mode, it uses the refrigerant it contains to absorb heat from the outdoor air and move it into your home. It’s the most efficient electric heating method available and ideal for our climate.


The V in HVAC stands for ventilation, an easily overlooked part of your home HVAC System. Although it doesn’t directly affect something as noticeable as your room temperature, good ventilation has a number of benefits. Not paying attention to proper duct sealing is one of the most commonly overlooked issues.

Air Conditioning

The AC in HVAC stands for air conditioning, which can be supplied by either an air conditioner, used when the home also has a furnace, or a heat pump. An air conditioner and a heat pump in cooling mode work the same way, using refrigerant to carry heat out of your home. These systems also reduce humidity as they cool.

Whether your home could use an improvement in airflow, or your heating or cooling system is due for an upgrade, contact us at Atlas Heating Service in the greater Chicago land area.

Our goal is to help educate our customers in the Chicago land area about energy and home comfort issues (specific to HVAC systems).