What
It Is
Technically, a heat pump is a mechanical-compression
cycle refrigeration system that can be reversed to either heat or cool a
controlled space. Installation for this type of system typically consists of
two parts: an indoor unit called an air handler and an outdoor unit similar to
a central air conditioner, but referred to as a heat pump. A compressor
circulates refrigerant that absorbs and releases heat as it travels between the
indoor and outdoor units.
How
It Works
Think of a heat pump as a heat transporter constantly moving warm air from one
place to another, to where it’s needed or not needed, depending on the season.
Even in air that's seems too cold, heat energy is present. When it's cold
outside a heat pump extracts this outside heat and transfers it inside. When
it’s warm outside, it reverses directions and acts like an air conditioner,
removing heat from your home. One advantage of a heat pump is that it moves
heat instead of generating heat, giving you more energy efficiency. Also, it is
powered by electricity, so you can save substantially on fuel consumption. For
example, a Trane XL20i heat pump is among the HVAC
industry’s most efficient, with a rating up to 19.00 SEER and 9.00 HSPF.
Note that heat pumps are best for moderate climates, and a supplemental heating
source may be needed for lower temperatures. As a year-round solution for home
comfort, Trane heat pumps can become a key part of your matched system. An
independent Trane dealer can help you decide if a heat pump system is right for
you.
Is
a Heat Pump Right For My Home?
In all electric applications, the heat pump may
consume less energy than an electric furnace or air handler with an added
electric heater accessory. Why? Because it can deliver the same amount of BTUs
as electric heaters using less electrical input. In moderate climates the
savings that natural gas yields may not be as advantageous as in colder
climates, since there is less frequent use of the furnace in milder climates.
Of course, the heat pump can be matched with a gas furnace where preferred. The
heat pump is effective by itself down to temperatures around