How Your HVAC System Works

HVAC equipment performs heating and cooling functions for buildings. These systems are categorized as central system or decentralized depending on the location of the primary equipment.

The basic system is made up of a thermostat, blower motor and air handler, plus ductwork and vents. Local specialists can help with the repairs and installation of a new HVAC system.

Heating

The heating component of an HVAC system works in a similar fashion to the cooling. The heating process begins when a thermostat registers the desired temperature and starts the ventilation cycle. An air return sucks in air, draws it through a filter, and passes it into the main heating unit.

The main heating unit can be a furnace that runs on natural gas, propane, or electricity. If you’re interested in saving money on your utility bills, you can opt for a high-efficiency furnace with an AFUE rating of up to 95%.

Some central systems use combined devices that are housed in an air handler, such as a ductwork fan, evaporator coil, air conditioning compressor, and a heat exchanger. Ductless systems like mini-splits also include heating units and are connected to a conventional or internet-enabled smart thermostat. Indoor air quality units like humidifiers, dehumidifiers, and air purifiers may be added to any system for additional benefits.

Cooling

Cooling works a bit differently than heating does. Rather than burning fuel to produce heat, cooling systems use refrigerant to absorb and transport thermal energy, either reversing the flow of that heat or releasing it to cool the air. The cooled air is then circulated throughout the home via an air handler and ductwork.

An HVAC system can also include a heat pump, which can both heat and cool the home. The heat pump uses the same components to operate as a furnace, except it’s powered by electricity instead of fuel.

HVAC piping delivers hot or cold water, steam, compressed air and refrigerant to and from equipment. The piping is often sealed and insulated to promote energy efficiency. Lastly, an air quality control system, which can include air purifiers, humidifiers and dehumidifiers, helps ensure optimal indoor comfort by keeping the air clean.

Humidity Control

When you think of your HVAC system, you probably imagine it helping you regulate your home temperature. While that’s true, it also has the power to control humidity levels in winter and summer.

Humidity control is important because high moisture content can cause health problems, like viruses, bacteria and mold to thrive. In addition, dry air can make you feel cold and uncomfortable while causing damage to woodwork, furniture and other items in your home.

You can address humidity issues by using a dehumidifier to remove excess water from the air or a humidifier to add moisture. A whole-home humidifier or dehumidifier can be installed as part of your heating and cooling system, making them easy to use and maintain. Adding one to your home can improve comfort, reduce energy costs and save on maintenance expenses. Burkholder’s HVAC professionals can help you find the right solution based on your personal preferences, outdoor temperatures and existing equipment.

Maintenance

It’s easy to neglect the maintenance of HVAC equipment. Just like your car, it’s difficult to spot problems without routine inspections. That’s why you need to keep on top of your preventative maintenance schedule.

A clogged air filter and dirty coils can make your HVAC system inefficient. Your technician can clean these components to improve your system’s efficiency.

You can save money on energy costs. A properly working HVAC system can reduce your energy costs significantly. You’ll also be able to stay covered by the manufacturer warranty.

It will help your system produce and distribute warm or cool air more evenly throughout your home. You don’t want to come home to a cold room in the winter or a hot house in the summer. A regular inspection and cleaning can help you avoid these problems. It can also reduce the likelihood of a major breakdown and associated repair costs. This can save you hundreds of dollars or more.