Other Types of Heat Pumps
All types of heat pumps in Ottawa are typically designed to provide comfort year-round. In the colder months they pump heat inside while in the warmer months they remove heat from the home interiors. However the main distinguishing factor between heat pumps is typically the type of source of heat or where they dissipate it. Besides air to air heat pumps, the other types of heat pumps include air to water, ground source or geothermal, which can also be water-to-water.
A geothermal water-to-water heat pump functions much like an air source heat pump with the only difference being that it extracts and dissipates heat through the medium of water. More specifically, a water source heat pump in Ottawa uses water in a closed ground loop or 2 wells in a open loop system as the source to transfer heating or cooling to water, which is then distributed to the home via a hydronic coil and air handling unit. A great advantage offered by a water-to-water heat pump is that it can also be used to heat water for domestic use.
In contrast, an air source heat pump in Ottawa draws heat from the outside air to keep the temperatures within warm and extracts and circulates heat outside in the summer. An astonishing fact is that even in the colder months, the external air contains heat! It offers the basis for the working of air-source heat pumps which are commonly used in Canada.
A ground source heat pump in Ottawa uses the earth, ground water, or both to extract heat in the winter and reverses the operation in the warmer months. A significant benefit of these heat systems is that their operation is not affected by the extreme temperature fluctuations as they use the ground as the source of heat. For the same reason, they’re also one of the most efficient types of heating systems available.
Generally speaking, a significant advantage of all heat pumps in Ottawa or for that matter anywhere else in the world is that the direction the refrigerant is pumped through the system determines whether the indoor coils are either hot or cold.
The advanced design and efficiency of today’s cold climate heat pumps such as the Lennox Signature Series and Mitsubishi ZUBA Central Heat Pumps make them a much better option than Oil or Propane. Even with a Gas Furnace, a “Dual Fuel” system allows the heat pump to operate at times when it is the more efficient heat source, while the Gas Furnace takes over when it may be more suited to do so in extreme cold temperatures. The overall energy savings can be significant. Typical savings can repay the small difference between an air conditioner and a heat pump in Ottawa in a surprisingly short time-frame.