Central Heating & Cooling: How Does It Work?

Get A FREE Estimate Now

Central cooling and heating systems are one of the most popular options for keeping us cool in the summer and warm during the winter. But how do heating and cooling systems work exactly?

In this article, we’ll give you a brief overview of the most common options for Scottsdale air conditioning and heating and the way these systems work. Read on!

What is central cooling?

Central cooling systems come in different shapes and sizes, but the most popular option is definitely a split system that includes an outdoor unit with a compressor and condenser coil, and an indoor component with an evaporator coil. Here’s how these components work together:

  • The refrigerant in the evaporator coil cools the warm air from inside your house as it blows across the coil.
  • The refrigerant or Freon is then transferred to the compressor unit and then is pumped back again.
  • The cooled air is transferred via ducts throughout your home while the heat absorbed by the refrigerant is blown outside from the outdoor unit.

Is central AC more efficient?

For many people, choosing between having a window air conditioner or a central AC system installed boils down to their efficiency. Is the central air conditioner more efficient than a window unit?

The short answer would be – yes, central air conditioning systems have higher efficiency overall, both in terms of EER and SEER ratings. Window units typically range from EER ratings of 9.4 to 10.7 and don’t get SEER ratings, while the minimum EER of a central AC system is 12. This is because window units have less advanced hardware due to their small size and often lack the modern features of high-quality central systems.

Does central heating use water?

Now that you know all about central cooling systems, you’re probably wondering how a central heating system operates. There are several types of heating systems that work on different principles and use a variety of different sources of heat. Here are the three most common options.


Central furnaces blow heated air via ducts and deliver it to the rooms in your home. They are typically powered by natural gas, oil, or electricity.

Heat pumps

Heat pumps work on a principle similar to that of a central AC system. They absorb the heat from the outside using an electrical system and transfer it inside in order to warm up the space.


Boilers use water to distribute heat throughout your house via radiators. The water is then transferred back to the boiler and is reheated. This type of system uses oil or natural gas as fuel.

Hire the finest Scottsdale air conditioning services today!

No matter which heating and cooling system you choose, it’s essential that you depend on a reputable air conditioning company in Scottsdale for your installation. This is because a botched installation can put you in danger and shorten the lifespan of your unit significantly. What’s more, your chosen professionals will be able to advise you on what you should look for when buying AC and when the best time to invest in it is.

Luckily, you have Hughes Air to rely on! Whether you’re looking for seasoned experts to perform a foolproof air conditioner installation or want us to service your heating unit and make sure you have nothing to worry about while you go hiking at Papago Park. Give us a call today!