How to Choose the Right type of Heat pump

How to Choose the Right type of Heat pump ?

Is a heat pump suitable for my home?

If you are planning to build a modern new build, a heat pump is definitely part of it. It is the high energy efficiency of the heating (A+++) which can save energy costs that predestines the use of a heat pump even in a renovated house. Electricity, which is the power source for the heat pump, is available for every house construction. The heat pump guarantees year-round operation with the possibility of cooling and heating with stable performance even at very low outside temperatures and DHW preparation in an external storage tank up to a temperature of 55°C.

Which type is suitable for me?

The difference between heat pumps lies in the way they extract heat from the environment. They divided into:

1.Air/water heat pump – is based on the principle of extracting energy from the ambient air and transferring it to the hot water heating system. The medium is heating/cooling water. In terms of design, these heat pumps are divided into split (split) and monoblock units. The great advantage of this natural element is that it is ubiquitous.

Wiring diagram of an air/water in a family house

2. Ground/water heat pump – this method is based on extracting heat from the ground or a geothermal borehole.

Wiring diagram of an ground/water in a family house

3. Water/Water Heat Pump – The method is based on extracting heat from two wells.

Wiring diagram of an water/water heat pump in a family house

SThe common denominator of these three types of heat pumps is the low potential hot water system (floor, wall and ceiling heating / cooling).

4. Air/Air Heat Pump – This type is suitable for hot air heating systems, where air is used as the working medium, which is distributed to all areas of the building by a system of air ducts. The heat pump is preferably used in these systems as a source of cold (air conditioning).

Wiring diagram of an air/air heat pump in a family house

The main problem with the ground / water and water / water types is the lack of area and water as a source for implementation. Therefore, the most economical and from the point of view of installation and service is the most favorable way of the air / water.

Heat loss of the house

However, what is good to know when choosing is the heat loss of your family home. Before purchasing, make sure that there is no over – or under-rated output of the appliance. Oversizing performance could result in greater component wear at more frequent starts, when the appliance no longer needs to supply heat to the home. On the other hand, when dimensioned, the device would not have to manage to supply heat in the required need. For this reason, ATTACK offers a wide power portfolio with outputs of 6, 9, 12, 15, 19 kW.

Outdoor unit from 6-12 kW

Outdoor unit from 15-19 kW

Important parameters

COP and EER

Important parameters that you should pay attention to when choosing a heat pump are COP and EER. These two parameters indicate the efficiency of the heat pump. The COP parameter is for heating and EER for cooling. The ATTACK Inverter R32  achieves a high COP / EER coefficient of up to 4.6, which means that 1 kW of supplied electricity produces up to 4.6 kW of heat / cold.

SCOP and SEER

These two parameters give essentially the same values as COP and EER but averaged over the whole season. The SCOP value gives the calculation of the average heating over the season under standard conditions. This seasonal coefficient of performance in the heating mode, calculated as the ratio of the heat energy (heat) transferred to the electrical energy input during the whole year season.
The SCOP reflects a more realistic value of the heat pump’s seasonal efficiency and includes the consumption of all heat pump components (not just the compressor). Value  of the SCOP  ATTACK Inverter R32 air/water heat pumps of the ATTACK Inverter R32 power series is (in the range of 4.71 – 4.99). The higher the value the better. ATTACK monoblock heat pumps guarantee year-round operation with the possibility of cooling, heating with stable performance even at very low outdoor temperatures. The same method as for SCOP also applies for SEER which is the parameter for cooling. It is measured under variable ambient conditions and in real mode. The higher the better.