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How Heating Systems Work

Most contemporary homes are equipped with a central heating system. The heating system includes a number of separate units and machines that combine together to form the entire system, which circulates warm air throughout the interior of your residence, keeping your home temperature comfortable in spite of the cold weather outside.

How Heating Systems Work

Do you want to know how this extensive system works to warm your abode? All of us should have some basic knowledge about our heating system so that we will be aware of the problem if we are ever faced with heater repair. So keep reading to find out how your home’s heating systems works and tackle your next HVAC repair in the best way.

Parts of a Central Heating System

Most central heating systems include:

  • A furnace or a burner, which is loaded with fuel of some sort and is located in one corner of the property.
  • Heat exchangers, where cold air from your home is exchanged with warm air.
  • Blowers, which is used to circulate air through various air ducts in your home.
  • Flue, which is used by the heating unit to discharge exhaust fumes into the air as gaseous by products.

Types of Heating Systems

There are two different types of heating systems within central heating units. These are:

  1. Forced air system
  2. Gravity based heating system

How The Forced Air System Works?

The process begins with the burner that burns away fuel, in the form of oil, gas, wood, or electricity, to generate heat. This heat is then passed through the heat exchanger. The heat exchanger takes in the cold air that is circulating through your home and exchanges it with warm air. Thus, in this way, it is gradually warming your interior living space. The air is then pushed through the air ducts in your home, with the help of the blower. During this entire process, the flue continues to gives off exhaust gases as more and more fuel is burnt.

The forced air system can be used for heating as well as cooling purposes, as the hot air can be forcefully passed over refrigeration coils, which will cool the air before circulating it through the air ducts.

How The Gravity Based Heating System Works?

The gravity based heating system also begins its heating process with a furnace or burner, where fuel is consumed to give off heat. However, rather than forcing this heat through unnatural channels, it is allowed to rise naturally, as hot air is lighter. This heated air is then carried up, straight to the large air vents built in the home, without the need of blowers.
However, this system is only functional for warm air, as cold air sinks down and becomes heavy. Thus, it will not be able to rise and reach the air ducts.

Both of the above given heating systems have their own setups and processes. However, today’s homes are generally equipped with a heating and cooling system. Thus, you are probably using a forced air system rather than the gravity based heating unit.

Now, you are aware of how hot air circulates around the house. Thus, if you are faced with a furnace repair, you will probably be able to discover where the problem lies, and if not, you can always contact a heating contractor to help you out with the repair work.


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