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Heating

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Heating With a MasterTherm Heat Pump

Year-round comfortable heating with low operating costs

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MasterTherm heat pumps ensures comfortable year-round heating of your building without the need for an additional heating source. With its low operating costs, the heat pump brings the user great savings and thus ensures a quick return on investment .

It’s all about heat pump performance

Optimising the heat pumps performance

A heat pump is a source of heat like any other, but it has its own specifics that must be taken into account. In particular, the output and the heating factor (ratio between output and input) of the heat pump is significantly dependent on the temperature difference between the primary heat source (eg ground, air, groundwater) and the secondary heating circuit (water temperature in the heating system). The greater this temperature difference, the more the heating factor of the heat pump decreases and its output decreases.

Therefore, the highest efficiency is achieved by the heat pump in combination with a low-temperature heating system – floor / wall heating or large-area radiators. For the same reason, all MasterTherm heat pumps are equipped as standard with equithermal control , which controls the temperature of the heating system depending on the outdoor air temperature. This achieves the best possible heat pump efficiency in all operating conditions.

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Heating With Heat Pumps

Heat pumps are able to heat any building comfortably while delivering significant financial savings.

Heat pumps are able to heat any building. The heating system can be designed as monovalent, where all the thermal energy is provided by a heat pump. A more common solution is usually bivalent, where part of the required output on the coldest days winter is supplied by an additional source, usually an electric boiler. Ground-to-water or water-to-water heat pumps can operate in monovalent mode, and the air-to-water system requires an additional source.

Air-Water System

We recommend dimensioning the heat pump output so that the air-to-water system covers the heat loss of the building at 100 to 130% under A7W35 conditions (air 7 ° C, heating water 35 ° C). The system dimensioned in this way ensures coverage of the building’s heat demand up to outdoor temperatures of approx. -4 to -9 ° C, only at lower temperatures does the first heating section of the built-in electric boiler gradually be connected. (Average air temperatures during the entire heating season can be found here). With such a suitably designed output, it is ensured that more than 95% of the heat consumed during the heating season is produced by a heat pump and <5% of the energy is supplied by the electric boiler.

Ground-Water, Water-Water System

It is simpler to dimension the output of the heat pump in the ground-water or water-water design in the sense that the pump works here with practically a constant temperature of the primary source and we design the output for real operating conditions B0W35 (brine 0 ° C, heating water 35 ° C) for ground-water system and eg W10W35 (source water 10 ° C, heating water 35 ° C) for water-water design. In a monovalent operation without an additional heat source, the heat pump’s output under these conditions must fully cover the heat loss of the building. For bivalent operation, the output of the device is configured lower (eg at 70-80% heat loss). This can result in significant investment savings (smaller collector area, smaller borehole depth), which outweighs the slightly higher operating costs of the heat pump with bivalent heat source.

To estimate the appropriate type and output of the heat pump for your building, use our Heat Pump Selection Guide.