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Are You Getting Most Out Of Your HVAC System?

What is an HVAC system?

HVAC stands for heating, ventilation, and air conditioning. It is the technology used for giving environmental comfort in indoor places and vehicles. Its goal is to provide thermic comfort and adequate indoor air quality.

Most important parts of an HVAC system:

Learning about the parts of your HVAC system can help you manage it properly, and learning about your heater and air conditioner makes finding and correcting problems easier. That way, you can prevent embarrassing, expensive failures, keep your system working at top efficiency, and make sure your home stays cozy. The essential parts of an HVAC system are discussed below.

Heat exchanger:

Your heat exchanger is part of your furnace's housing, and it receives heat and heats fresh air when your thermostat initiates your furnace, and the heat from combustion arises. All kinds of furnaces have heat exchangers, including electric units. This vital component contains sturdy stainless steel with temperature-resistant metals to limit cuts and other damage. Some designs have a special duct to let fresh air enter your heat exchanger faster and make you happy in a rush.

Blower motor:

After the air in your heat exchanger strikes a preset warmth, an electric blower motor commands a fan that forces the hot air into your home’s ductwork, through your air vents, and into all the rooms in your home. This process ends before the blower motor stops working, so all the warm air present in your heat exchanger and your ductwork will get to the rooms of your home.

Combustion chamber:

Oxygen must be available for conventional combustion, and your heater adds air to fuel inside a combustion chamber, also called a burner. For a gas furnace, the heating cycle begins when a small quantity of air and gas mixture enters the combustion chamber. Then, a glow stick or pilot light burns the mix, and it burns in a regulated fire as more gas and air move into the burner.

Condenser coil or compressor:

Condenser coil or compressor is a component of your air conditioner or heat pump, and it’s generally fixed outside your home. A condenser cools your home by issuing heat into the outside air. This phenomenon happens when it condenses refrigerant from a hot gas to a chilled liquid. At the same time, a fan whirls air on the compressor to quickly separate the heat and cool the refrigerant. Then, your HVAC system sends the liquid coolant by an aluminum or copper line or tube to your evaporator coil.

Evaporator coil:

The evaporator coil is an essential component of your air conditioner or heat pump inside your system’s indoor air controller. Your HVAC system leads refrigerant to a set of tiny nozzles or expansion pipes. These pipes spray the liquid refrigerant so that it can evaporate from a liquid to gas faster. This consumes heat and reduces the temperature of your home.


A thermostat has temperature sensors that determine when your heater and air conditioner will switch on and off and regulates for users. It’s connected directly to your system through proper wires. The best place for a thermostat is near the middle of your home, away from confined areas or drafts. Some heating and air-conditioning systems have more than one thermostat, and each thermostat regulates a separate zone. That way, you can save energy by only heating or cooling controlled areas, and all the members of your family can choose the temperature that’s most convenient for them.

Working principles of HVAC system:

In the background of the HVAC system, an HVAC water chiller delivers chilled water distributed throughout the building or space up to cooling coils in air-handling systems. Blowers move air on cooling coils, which are then circulated into different portions of space or building to provide convenience or protect goods/items as per HVAC design. Air is spread through supply ducts and return air is collected in air treatment units with the help of return ducts. Chilled water and cooling water pumps give the energy to keep the chilled and cooling water moving. HVAC Valves are also placed at different points in piping to help the HVAC system's maintenance or for system control. Heating of air may be done with an HVAC heat pump, hot-water dynamo, or only by a furnace. Some industrial chillers also work as heaters in the winter season. Cooling coils are replaced by heating coils in case of heating mode. HVAC system prices may vary for different applications like heating and cooling space or the environment changes. Looking for cheap HVAC systems may require little research in types of HVAC systems and HVAC suppliers; otherwise, you would be grieving over the waste of millions of dollars for selecting the wrong HVAC designer & contractor. You can get the best designs of HVAC on

Maximize the efficiency of your HVAC system:

Your HVAC system is designed for a single purpose - to keep you warm in the winter and cool in the summer. For your HVAC system to work correctly and run efficiently, you must do your part to sustain and troubleshoot the unit. It is simply not enough to have a state-of-the-art HVAC system installed without implementing the occasional proper maintenance and yearly inspections by a licensed HVAC contractor. Modern HVAC units have been produced to use as little energy as possible while equipping your home with the necessary climate control. Rising energy costs and an attempt to make home appliances "green" have prompted HVAC system companies to redesign units to work more efficiently and cost less. This is good news for those who want to save money on their utility bills and decrease their carbon footprint. However, the homeowner must do his or her part to guarantee the system keeps its maximum working efficiency. You should make sure your HVAC system has a tidy filter. Filters should be replaced every 30 days; more often if you have pets or regular dust buildup. For the most effective airflow, use a low-cost filter that you have to change periodically. They give the most airflow, but you must remember to change the filter regularly as they become dirty and practically ineffective after a few weeks. Obstruction in the airflow will make your HVAC unit to run harder and significantly decrease the system's performance. The refrigerants in modern HVAC systems have been designed to be the most eco-friendly. While R22 Freon was the model for many years, R410A has proven to be a more effective gas. The professional HVAC contractor should only do the troubleshooting with the refrigerant problems. It requires using high-pressure gas and reading gauges, which need an understanding of your particular HVAC unit's complex specs.

The largest HVAC manufacturer in the world:

Goodman Manufacturing is an American firm. It is the world's biggest manufacturer of HVAC parts and systems. The company was founded in 1975 and is based in Houston, Texas. It manufactures domestic heating and cooling systems.

Samira H. Revised Date: 20-07-2020

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By Saha on October 19, 2021


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