What are the different types of heat pumps?

Those people, who want to shift on heap pumps, usually want to find out, what’s the difference among existing types of heat pumps as it directly influences installation and running costs, and there are some limitations depending on your terrain or residential area.

So, the first thing you have to know is that heat pumps are devices that extract heat from the environment and transport it to you. The very action is based on physics – heat extraction and transportation is a daily routine in Universe, so could it serve your interests? That’s what exactly we are definite about in Husky Heat Pumps Ltd.. And there are a number of ways such environmental heat is collected and brought to you by:

  1. Air-source heat pump.
  2. Water-source heat pump.
  3. Ground-source heat pump.


We have indicated these types ranging them from the less (option #1) to most efficient (option #3). Inside them, they are further subdivided


Air-source heat pump:

  1. Air-to-air
  2. Air-to-water


Water-source heat pump:

  1. Water-to-air
  2. Water-to-water


Ground-source heat pump:

  1. Ground-to-air
  2. Ground-to-water


One-to-air models of heat pumps are destined to heat up the air in your house. That is, they extract heat from the air outside the window/water from the stream you might have nearby/soil of your garden or the land plot of other kind and deliver it into your inner air by means of a module that outwardly looks like a conditioner hanging on a wall. You may be surprised (but get used to it when refreshing your knowledge of physics) that heat pump works even when there is below that 0 °C on the street. It is simply because it does not mean that 0 °C is the absence of heat, no, it is just zero degrees on some scale thought up by humans. Energy still exists in abundance on this point. Efficiency is just lowered in colder weather. The process of energy extraction keeps system efficient down to -20 °C.

One-to-water types of heat pumps systems mean that they collect heat from the outside the same as described above but do not distribute it inside your air directly. No, the collected heat goes in your water heating system replacing or helping your current heater: it may be a boiler, gas/fossil fuel burner, or any other heat generator of any kind. Then, the heat goes into your heating system of fluid running in pipes and radiators located on walls to heat up the air. It is more effective but the same more energy consuming and takes more time to heat up the air while preserving water in pipes last heated up much more time than it is in the case with one-to-air types of air heat pumps.

In addition to heating water in pipes, different types of heat pumps are used to heat up your sanitary water, replacing a boiler. But you should know that such heating will never be over 60-65 °C due to physical limitations. Still, such temperature is enough to wash up, take a bath/shower and to have enough hot water during the day for, for instance, washing dishes.

Types of air source heat pumps

When air serves as the source of heating, it is less efficient compared to water and ground sources because air has the lowest amount of energy compared to the two others. Water like a sea, pond, river, or even a small stream always carry more heat but such type is applicable only when you have such water source relatively nearby your house or your house stands on them.

When we consider a ground-source heat pump, the efficiency is highest because, under the ground, the annual temperature is relatively the same, varying within the range of several degrees. Installing such pump, you must go several meters below the surface to make it truly efficient. This takes excavation and their land plot works in addition to other actions inherent to air pumps installation itself.

Just like efficiency, the cost of installation ranges the same – from air pumps, through water ones and to ground pumps, the costs rise. With running costs, it is on contrary, for ground pump will be the lowest, for an air pump – the highest.

We hope that now you know a little more in issue what are the three types of heat pumps and will differentiate between them. If you still have any questions remained, you are always free to refer to our specialists that would love to help you on every possible issue concerning heat pumps.

All figures and numbers are approximate and stated for information only. Figures for your property may vary. Subject to survey.

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Different types of heat pumps