Heat pump consumption 2019 on a monthly basis

  • Erstellt am 2019-11-27 10:44:36

guckuck2

2019-11-27 15:03:49
  • #1
The linked attachment is obviously created in a brainless way. One should look for the continuation in the pink forum.
Heat quantity meter is usually integrated, otherwise retrofit. Otherwise, you can’t calculate your annual performance factor.
 

Heinz2k

2019-11-27 15:07:16
  • #2
After the first year, just under 1700 kWh (in January I optimized the settings)

Standard Energy Saving Ordinance 2016 building with 136 sqm room Leipzig, 4 people, controlled residential ventilation, geothermal heat pump with deep drilling.

Target temperature 22°C, HRV is off. Bathtub is used more often. I am satisfied.
 

Lumpi_LE

2019-11-27 15:18:14
  • #3

That actually screams of a wrong heating setting.. We used that much from June to September and we are really not frugal.
 

boxandroof

2019-11-27 15:22:31
  • #4
Yes, that's probably true. Even with an instantaneous water heater without a heat pump, we would consume significantly less. It is likely due to the circulation, possibly high standby consumption/possibly continuously running pumps and storage losses, combined with low performance factor due to high temperatures.
 

guckuck2

2019-11-27 15:23:11
  • #5


What are your hot water settings like?
I also see potential there with mine. I rarely get below 80kWh for hot water. The performance factor is also poor, about 2.4 despite a ground-source heat pump in the summer months.
I'm thinking about the circulation, rainshower, and long-running pumps. Some are manually set to 100%, I still want to read up on that.
 

Lumpi_LE

2019-11-27 15:55:02
  • #6
Nothing special, warm water is enabled for 48°C between 11 a.m. and 7 p.m. and charged again at 5 a.m. if necessary (but this happens quite rarely). I made a few specific settings for the warm water, but I don’t remember off the top of my head what they are... at what temperature it should charge and for how long, and how long the pause between the charges should be, etc. From June to September I had a COP of about 4.1 for the warm water. However, I suspect it is just normal that an air-water heat pump produces warm water more efficiently in summer than a brine-water heat pump. If I include the photovoltaics, I only consumed about 5-10 kWh of electricity for warm water in those 4 months.
 

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