Experiences with brine heat pump

2018-05-19 07:01:59

Why provocative? A heater that is never used is unnecessary, regardless of whether it is well or poorly insulated, heated with underfloor heating or radiators. In our current rental apartment from shortly after the turn of the millennium, the radiators in the bedroom and kitchen have never been turned on; they only take up space. These rooms could easily be left without heating (if it were allowed, which I do not know).

2018-05-19 15:06:04

Maybe someone with expertise is hanging around here who can answer this. For example, we currently do not have underfloor heating installed in the utility room (upstairs). However, I do not know whether this is due to the function or the very small room size. We only rented the place and were not involved in the construction.

Besides the potential cost savings from pointless underfloor heating installation, of course, a heat pump could be much better adapted to actual usage. If there is a heater installed in every room, that flows into the heat demand calculation / flow rate, even if in practice 30% are always set to "off"? Someone could always come and turn up all the valves? Just theory.

2018-05-19 15:30:18

Maybe someone from the field is hanging around here who can answer this. For example, we currently do not have underfloor heating installed in the utility room (upstairs). However, I don’t know if that’s due to functionality or the very small room size. We only rented the place and were not involved in the construction.

Besides the potential cost savings from useless underfloor heating installation, of course, a heat pump could be much better adapted to the actual usage. If there is a heater installed in every room, that is taken into account in the heat demand calculation / flow rate, even if in practice 30% are always set to "off"? Someone might always come along and turn all the valves up at once? Just theory.

Wrong. The unheated room indirectly cools the adjoining rooms. For example, if there is a bathroom next door, then it is doubly "bad". That means you have to heat even more in the neighboring room to achieve the desired room temperature. But if the room is next to rooms that are basically cool (pure bedrooms, for example), then that is okay....

But what is the point of the question in the case of a rental apartment?

If the heating costs are low, then everything would be fine...

2018-05-19 15:50:16

Of course, I am aware that heat more or less distributes itself. But even in the illustrated example of bedroom-bathroom, I wouldn’t heat the bedroom to have the bathroom warm if I actually want the bedroom to be cool (and the bathroom probably needs an additional heater for real warmth anyway).

The rent was not a question, but only the observation that I do not know the reason for the missing underfloor heating.

2018-05-19 15:55:02

No, you temper the bedroom so as not to "steal" heat from the bathroom. That is precisely why the underfloor heating must be properly designed according to the heat demand of the respective room. Only in this way can the flow temperature be kept as low as possible, and thus the heat pump be operated as efficiently as possible.

2018-10-17 22:05:35

Hello everyone,

a brief overview of our situation: We have installed an Alpha Innotec ground source heat pump with deep drilling. The house is a KFW 55 house, 160 sqm over 1.5 floors. The rooms are equipped with individual room thermostats.

Unfortunately, the system was only briefly explained to us and after we had the first fault in the system, the installer recommended and set a nighttime setback. Is this actually sensible under the above-mentioned conditions? Opinions differ on this. The hot water is also no longer continuously heated.

I am grateful for any tips.

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Experiences with brine heat pump

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