Have you ever observed a split system with a furnace installed vertically in a basement from a side view? When homeowners adjust the thermostat to increase the temperature from 66 to 72 degrees, the draft inducer is activated, drawing in ambient air through the system. This air is essential for combustion and for safely venting the combustion gases out of the house while the system is functioning. In this scenario, the natural gas supplied by the utility company passes through the gas valve and is distributed to individual burners through the manifold. According to a specialist providing furnace installation, the gas is then ignited, and the heated gas begins to warm up the individual tubes that form the serpentine-shaped heat exchanger. As the combustion gases travel through the heat exchanger, they begin to lose some heat due to the suction created by the draft inducer.
How Does a Heat Exchanger Work?
The heat exchanger is designed so that return air being drawn from the home blows between and across the individual tubes where heat is transferred without the air mixing with the toxic combustion gases, and we see that the inducer is pulling those combustion gases up and into the flue where they are ultimately expelled from the home.
As the blower motor begins to turn, it removes cool air from home through the returned registers and blows that air across the heat exchanger tubes.
As the air departs via the warmth exchanger, the heat transfers to the passing air and then is distributed via the supply ductwork and registers to the inside of the home until the temperature said if the thermostat has been satisfied.
Your gas furnace is something you never think about until it stops working. But with a little bit of knowledge, it is much easier to troubleshoot problems. So in this post, we will learn how a gas system heater works.
Working Procedure of Gas Furnace
First, we have to cover the basics then we will dive a little deeper into the sequence of operation. Therefore you can understand what each component does. Let’s begin.
Although there are some differences, all gas heater systems work in the same fundamental way.
Natural gas is burned to warm up the heat exchanger. You can always consult experts in this regard to know more about how the furnaces work in this level.
The heating system runs until the thermostat detects the right temperature and shuts the heating system off. Modern heat systems use a draft inducer fan to help exhaust the emission.
These forces draft. It also increases efficiency. Condenser heat systems use a various type of exchanger to condense water vapor, which extracts even more heat from the combustion.
Annual fuel utilization efficiency rates this heating system. This is a ratio of the fuel burned versus the power converted into heat. Older heat systems will have an efficiency rating of 70 AFUE or less.
