Environmental Installations
Saving Energy for your future

Frequently asked questions


What is a heat pump and how does it work?

A heat pump is an electrical device that extracts heat from one place and transfers it to another. The heat pump is not a new technology; it has been used in Sweden and around the world for decades. Refrigerators and air conditioners are both common examples of heat pumps.

Heat pumps transfer heat by circulating a substance called a refrigerant through a cycle of alternating evaporation and condensation (see Figure 1). A compressor pumps the refrigerant between two heat exchangers. In one heat exchanger, the evaporator, the refrigerant is evaporated at low pressure and absorbs heat from its surroundings. The refrigerant is then compressed en route to the heat exchanger, the condenser, where it condenses at high pressure. At this point, it releases the heat it absorbed earlier in the cycle.


Is there a lot of condensation?

On a humid winter day there can be a lot of condensation under your heat pump which is at risk of freezing. It is very important that one considers drainage when installing. More tips about installation are available in "Installation and Maintenance Instructions".


Why not use glycol in the outdoor section, there would not be any risk of freezing then?

In order to used glycol in the outdoor section it means that you need to have it in the whole system, but this can be avoided by an intermediate heat exchanger. However, an intermediate heat exchanger means smaller savings and more expensive investment.


I have a larger property that I would like to heat with air water heat pumps. Can several of these be connected together?

This is possible with the accessory SMO 10.


Does the position of the heat pump have any bearing on the operation and/or savings?

The position of the outdoor air heat pump has no great bearing other than the distance to the inner section/electric boiler. This distance should be kept as short as possible to prevent heat losses.


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