HVAC systems are responsible for the quality of life most Winchester residents are used to. Without it, comfort, health, and even architecture, as we know it, would be very different.

Many may not know what these systems are exactly or how much they can impact the quality of living.

HVAC Defined

Knowing what the letters stand for in the abbreviation “HVAC” makes the system’s function clear. HVAC stands for Heating, Ventilation, and Air Conditioning. As one will infer, the purpose of these units is to manage temperature and airflow in a home.

Though the entire system is responsible for all aspects of this function, there are a few main components that make up this system.

purpose of these units is to manage temperature and airflow in a home


An HVAC system generates heat for the home with a furnace or boiler. Heating may occur in different ways, which is why there are various means of heating.

For example, some systems will use electricity, while others may burn fuel such as natural gas or oil to produce heat. In a home, the boiler or furnace is often responsible for heating water as well.

Air Conditioning

Air conditioning systems are responsible for lowering the air temperature. With the use of fans and coils containing refrigerant, these systems can extract heat, effectively lowering the temperature.

In this process, moisture from the air will cling to the evaporator coils, which reduces humidity. The double function of the system is why they make a home or building more comfortable.


Ventilation is an essential function of an HVAC System. In some cases, ductwork transfers air from a room to be heated or cooled then returned.

Along with moving air, filtration will also occur. It is essential to understand that ventilation systems often feature air filters that are responsible for removing dust and other debris, which will increase indoor air quality.

What is a Thermostat?

An HVAC system is nothing without means of control. Even if one is unfamiliar with what an HVAC system is, they are going to be familiar with a thermostat.

Thermostats are small devices on the walls of the home. They work to monitor and maintain stable temperatures. While there are different types of thermostats on the market or in existence, they all share the same essential function. One sets the desired temperature, and a sensor or element within the thermostat maintains it.

If the temperature in the room differs from the desired setting, the thermostat sends a signal to supply cold or warm air to the room. Once at the desired temperature, the supply of heat or cold air is cut off.

Some thermostats have to be regularly adjusted while others are programmable. Homeowners even have the option of smart thermostats and Wi-Fi thermostats, which can be accessed remotely via smartphone or computer.

Are All HVAC Systems The Same?

HVAC systems face a variety of obstacles. The size of the building, budget constraints, and even the layout will factor into the heating and cooling process.

There are three main types of HVAC systems available to homeowners. 

Packaged Heating and AC

A packaged HVAC system is the most uncommon type of system for homeowners but is still an option. These systems feature one unit that is responsible for heating and cooling the air in the home.

A packaged unit will often be in the attic, top floor, or may even mount on a rooftop.

Split Systems

Split systems are the easiest to identify and what most people are familiar with. These are referred to as “split systems,” as two central units are present to cool and heat the air throughout the entire home.

The furnace or boiler is located within the home, while the AC unit is outside.

Mini-Split Systems

Ductless, or mini-split systems, are growing in popularity as they are cost-effective in the long run. This type of HVAC System features individual units located in each room throughout the house that will both cold and heat the air within.

Because each unit is independent of the others, mini-split systems reduce energy costs. Though, these are more expensive than traditional Split Systems to install.

How Will an HVAC System Benefit Me? 

HVAC systems are responsible for shaping much of modern life. So much so that it’s hard to imagine a world without them. The first thing we are familiar with is the level of comfort they provide.

Along with enjoyable living situations, HVAC systems protect the home and health from issues related to dust and humidity.

Good indoor air quality is also linked to increased levels of productivity and reduced levels of stress. Therefore having a proper HVAC system is beneficial in many ways.