Heat pump consumption 2019 on a monthly basis

  • Erstellt am 2019-11-27 10:44:36

Bookstar

2019-11-29 12:41:47
  • #1
If the new technology were properly planned and configured, comfort and efficiency would be present and everyone would be happy.

However, practice shows significant weaknesses here. Then the solid old construction and technology is the better choice.

About my system: Novelan air-to-water heat pump 12Lav

I am not sure where I can control the pump, I cannot find an option for it.
 

boxandroof

2019-11-29 12:46:57
  • #2
Yes, sure. I use a calibrated heat meter and a separate Eltako electricity meter to determine the values. We have pretty good conditions: low heat load, deep modulation, good heat pump, strong night setback during the transitional season, well-planned heating surfaces, "only" 21°C in the house, not a huge hot water consumption with 2.5 people, location with -12°C design temperature. It is possible. Theoretically more is possible too, but only with very intelligent control or loss of comfort. Top brine heat pumps achieve 6. Most are at 5. In new buildings there are other alternatives to electric heating: a) high electricity costs and less efficient heating b) planning: putting the underfloor heating also in the walls if 23°C is to be maintained permanently c) accepting the temperature as in the living rooms This is hardly feasible in new buildings. Ok
 

Lumpi_LE

2019-11-29 13:11:23
  • #3
It depends a bit on the perspective and interpretation, our bathroom is 0.5-1K warmer than the other rooms thanks to wall and underfloor heating. I think that's enough and I don't need 26°C in the bathroom. As soon as you turn on the shower, it will reach 24-25°C in a very short time anyway. I don't think a fan heater is bad either, you know your bathroom times and could run it for 10-20 minutes beforehand.
 

Tobibi

2019-11-29 13:28:16
  • #4
We bought a house built in 1983, 200 sqm of living space, built stone by stone. It is heated with a 5-year-old heat pump. I will certainly never be as economical as a 140 sqm house with modern insulation. However, I have the feeling that the settings are not as good as they could be. I often read that you just have to google how to optimize it. But so far I have not found any instructions or overview that really explained it to me in detail. From various sources I was assured that a top heat pump is installed, but I find the consumption quite high for that. We have underfloor heating in the living areas, radiators in the basement and an expanded room above the garage, which is not a good mix, but there are separate circuits for the two systems.
 

Lumpi_LE

2019-11-29 13:30:44
  • #5
How high is the consumption and what kind of pump?

btw: e.g.: "htd hydraulischer Abgleich" google or "htd Wärmepumpe optimieren"
 

boxandroof

2019-11-29 13:37:28
  • #6
All measures that lower your supply temperature (while avoiding short cycling) will increase efficiency.

Carry out a hydraulic balancing and keep all thermostats permanently open. You will then find out in which rooms the heating surfaces/radiators are insufficient and can possibly consider individual measures for the rooms. Control circulation - if available - intelligently, possibly remove buffer storage. Increase hysteresis for drinking water and/or lower drinking water temperature, preferably heat drinking water in the afternoon.

The most important measure is usually only feasible before moving in: large heating surfaces. Radiators reduce efficiency. Even in new buildings, heating surface is more important than even more insulation.
 

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