The discussions in the threads about heat pump consumption and supply temperature settings are full of technical terms, values, and configurations. It is sometimes mentioned that installers pay little attention to optimal adjustments, and that one should be more careful during the system design phase. From what I understand, incorrectly sized and/or poorly adjusted heat pumps lose their economic advantages. Therefore, I have three questions:
1. How much knowledge and skill does a homeowner actually need to acquire in order to achieve the cost-effectiveness they expect from their decision?
2. How likely is improper use by inexperienced users who simply want to have a comfortable temperature in their home?
3. What habits does a person need to give up when living for the first time in a house with a heat pump in order to achieve the expected cost-efficiency?
1. How much knowledge and skill does a homeowner actually need to acquire in order to achieve the cost-effectiveness they expect from their decision?
2. How likely is improper use by inexperienced users who simply want to have a comfortable temperature in their home?
3. What habits does a person need to give up when living for the first time in a house with a heat pump in order to achieve the expected cost-efficiency?
KingJulien23 Nov 2021 13:25A lemur is almost like a cat too :p
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Alessandro23 Nov 2021 16:12Deliverer schrieb:
In an emergency, you can follow this recommendation—but by that point, you’ve already wasted thousands of euros. So it’s rather unwise. It’s standard practice now because it has become mandatory due to some energy-saving regulation classifications. Lobbying is likely the main reason behind this. Perhaps also a bit of backwardness. In the past, not heating as much was not considered so bad. The reason is that the heat pump used to shut off earlier when the energy recovery rate (ERR) reduces the flow upon reaching the room’s target temperature. This causes the heat pump to stop running and have more frequent downtime.
That, in turn, eases the load on the power grid. And that is exactly the goal.
At the same time, your heat pump starts more often, which can reduce the lifespan of the unit (at least if the number of starts is abnormally high).
The most important factor is the design of the underfloor heating system and sizing the heat pump according to the heating load!
Everything else is just fine-tuning the system...
Unfortunately, the heating technician neither wants to do the calculations nor engage in discussions with the homeowner. That’s why he does it the way he always has and pumps 45°C (113°F) water through the pipes...
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Deliverer23 Nov 2021 17:11Alessandro schrieb:
This in turn relieves the power grid. That, however, is incorrect. A continuous, small load is much better for the power grid than many short but high loads. And the higher efficiency also means that overall less electricity is needed, which cannot be a bad thing.A
Alessandro23 Nov 2021 17:44It’s like saying that a constantly switched-on lighting system puts less strain on the grid than one that is occasionally turned off. What does efficiency have to do with it?
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Oetzberger23 Nov 2021 18:02Alessandro schrieb:
It's like claiming that having the lighting always on puts less strain on the grid than turning it off occasionally. What does efficiency have to do with it? Exactly. Transients put a significantly higher strain on the power grid than a consistently high base load. You should read up on the fundamentals.
With the same average power consumption, an on-off heat pump stresses the grid much more than one running continuously at a lower power level. This assumes that the on and off signals are not controlled by a grid management system for short-term load control. That will come in the future as well.
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Deliverer23 Nov 2021 18:29Oetzberger schrieb:
That will come too.That has long been common practice with heat pump tariffs, hasn't it?! That's why my heat pump is connected to the main house meter! ;-)Similar topics