Heating & Cooling 101

The Basics of Keeping Your Home Comfortable

The heating and cooling system, sometimes referred to as the HVAC system, is one of the most important parts of your home. HVAC stands for Heating, Ventilation and Air Conditioning, the three main functions of a home comfort system. A complete system can control air temperature, humidity and fresh air intake and maintain the quality of the air in your home.

Central Heating and Cooling Systems

A central heating and cooling system produces warm or cool air in one central area and distributes it throughout your home. There are many types of systems that work as central systems, from traditional split systems (having both indoor and outdoor components) to packaged product systems (having one unified outdoor component for heating and cooling).

Typical products for central systems include:

  • Heat pumps
  • Air conditioners
  • Gas and oil furnaces
  • Fan coils
  • Evaporator coils
  • Controls and thermostats


Most central heating and cooling systems are forced air systems, which means they send air through ductwork for distribution. The ductwork can contain products that also filter and clean the air.

Radiant systems, on the other hand, create heat from sources like boilers and deliver it through radiators throughout the home.

Typical heating products include:

  • Heat pumps
  • Gas and oil furnaces
  • Fan coils
  • Boilers

Air Conditioning

Whole-home air conditioning systems are central systems that rely on ductwork to deliver cool air throughout your home. An air conditioning system can provide cooling, ventilation, humidity control and even heating (if using a heat pump).

Typical air conditioning products include:

  • Heat pumps
  • Air conditioners
  • Evaporator Coils
  • Fan Coils


Controls and thermostats turn your heating and cooling system on and off in order to bring your home to a set temperature. Advanced technology found in the Evolution® control helps you save energy and reduces costs by giving you precise control over temperature, humidity, air treatment, scheduling and more.