Home Basics: HVAC Guides – Parts Of A Residential HVAC Unit – Battle Creek MI Residential Companies


The consensus is that the HVAC system is among the most critical components keeping the home functional. Without the unit in working order, the safety, comfortability, and overall health of the family are put at risk. It enables breathing fresh air quality without the potential for harmful bacteria or allergens affecting respiration and keeps the interior temperature at an appropriate level despite extreme conditions outdoors. The only thing required of you is to maintain the system.

via Kerry Spears photography: Nathan Schroeder and Kelli Boyd

The homeowner readily does simple tasks such as changing filters and necessary cleaning. But to keep the unit operating at peak performance, preventative servicing by a professional, follow ctimechanical.com, is advisable. Maintenance of this sort picks up serious issues before they turn into costly repairs saving you time, effort, and money. In calling for repair, you’ll need to describe what’s happening with the HVAC. If you’re unsure of what comprises the system, this may prove to be challenging. Learning the main components of the unit will benefit you and the person responsible for fixing the problem.

via Kerry Spears photography: Nathan Schroeder and Kelli Boyd

The Critical Components Comprising Your HVAC

Understanding which parts deem to be the most relevant is critical for the function of the HVAC.

Ambrose Air explains that dirty HVAC systems should be inspected by a reputable, certified HVAC professional. With this information, you can perform basic tasks more efficiently and report any emergent issues effectively. That way, the repair person is prepared when arriving to take care of the problem. The main components include;

  • The heat exchanger: Once the thermostat speaks to the furnace, the heat combustion begins to rise. The heat exchanger absorbs this heat using it to warm the cool air from its position within the housing of the furnace. If any problem arises with this vital element, a potential carbon monoxide leak could develop, causing symptoms of nausea, headaches, and the possibility for fatalities. The suggestion is that homes be fitted with carbon monoxide detectors as appropriate in the kitchen and bedrooms aside from the annual inspection by the service provider.
via Kerry Spears photography: Nathan Schroeder and Kelli Boyd
  • Blower motor: An electric blower motor is responsible for powering a fan that sends all the warm air created by the heat exchanger out into the house’s ductwork after it has achieved a set temperature. From the ductwork, it travels into the rooms of the home through the air registers. A blower motor that offers variable speeds runs on those different speeds allowing for control of the air throughout the house.
  • Combustion Chamber: The furnace adds air to the fuel that is inside the combustion chamber, as oxygen is a requirement for proper combustion. When a bit of air blended with gas finds its way into the combustion chamber of a gas furnace, the heat cycle starts. A pilot light ignites the combination allowing a controlled burn as gas and air continue to pass into the chamber.
  • Compressor or Condenser Coil: This component is generally installed outside as part of the air conditioner or heat pump. It releases heat back out into the outdoors as a means to cool the home. The reaction comes from compressing and condensing refrigerant to a cold liquid from what was a warm gas. You should always keep debris such as grass, leaves, dirt away from the condenser to prevent issues, and for energy efficiency. Here are ways to deal with a provider if you develop an issue.
via Kerry Spears photography: Nathan Schroeder and Kelli Boyd
  • Thermostat: There is a multitude of programmable thermostats available with various models on the market, each with different capabilities. Make sure when you have yours installed that you understand the full functionality of the unit. Some homes have multiple thermostats that can be adjusted to suit different needs. Thermostats can be complicated, but they can prove to save energy for your home and keep everyone comfortable. 

Knowing the essential elements of the HVAC system will help you to understand how it operates and allow you to maintain it effectively. Follow https://www.houselogic.com/organize-maintain/home-maintenance-tips/hvac-maintenance/ for key points on HVAC maintenance.

The better you service your unit, the more efficient it will be in taking care of you. Thanks to CTI Mechanical for consulting!


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