Heating and cooling are 2 of the most
important concepts of home ownership. In fact, heating and
cooling systems are major factors for those looking to purchase
homes, and are a critical part of living comfortably in a home.
You may frequently hear the term "HVAC,"
which is used to describe home heating and cooling systems The
acronym stands for Heating, Ventilation and Air
Conditioning–which are the 3 primary functions of a home system.
They control air temperature and humidity, and maintain the
quality of the air in the home.
Heating and cooling systems may be classified
as central or local. Central heating and cooling is the most
standard method, and is defined by a system that produces warm
or cool air in one central area and then distributes it
throughout the home. There are many types of systems that work
as central systems, from traditional split systems to packaged
Products typically used in central heating
and cooling systems include:
Gas and Oil Furnaces
Single Packaged Products
Controls and Thermostats
Local heating and cooling, on the other hand,
produces warm or cool air at the location where it is needed and
serves small spaces.
Most central heating and cooling systems are
classified as forced air systems, because they send air through
ductwork for distribution. The ductwork can contain products
that filter or clean the air.
Whole-home air conditioning systems are
central systems that rely on ducts to deliver cooled air
throughout the home. An air-conditioning system provides
cooling, ventilation, humidity control and even heating (if
using a Heat Pump) for a home. Air conditioning units cool
refrigerants like Puron Refrigerant and Freon and deliver them
to evaporator coils, which dissipate the refrigerant and blow
cool air into ducts for delivery throughout the home.
Products such as room air conditioners are
local cooling options for smaller areas within homes. Instead of
delivering cooled refrigerant to a coil and then to ductwork, a
room air conditioner contains all the components in a single
unit and blows air directly into a room.
Air-conditioned homes often have sealed
windows, because open windows would disrupt the attempts of the
control system to maintain constant temperature.
Typical air conditioning products include:
Central Air Conditioners
Room Air Conditioners
Single Packaged Products
The term "thermostat" commonly refers to any
unit that controls the operation of a heating and cooling
system. Thermostats are used to turn on heating or cooling
systems to bring the home to a set temperature. In addition to
basic temperature control, programmable thermostats can be used
to manage the timing of the system's functions, which can
control overall energy use and costs.