Air conditioning is a process that controls the filtration, air circulation, temperature and humidity of an environment. Air conditioning is associated with the cooling and the dehumidification process of air, and is therefore identified as refrigeration equipment.
A furnace is a device that produces heat, using combustion or resistance from gas, fuel oil or electricity. The central air systems that are used today have many parts that allow your air to be heated efficiently.
A mini split system is a highly efficient system (up to 16 Seer) that provides heating and cooling in a particular room in your home, but can also service multiple zones withing your home as well.
An air handler is a unit that is used to move air within your home or office. Air handlers are specifically designed to work with an outdoor unit (a heat pump or air conditioner).
A thermostat is a device for controlling the temperature of a heating and air conditioning system. The thermostat maintains the temperature in your home to the desired temperature set to the thermostat.