ᐅ Air-to-Water Heat Pump: Current Consumption and Data

Created on: 29 Sep 2020 11:06
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Bookstar
Hello!
I'll start.
Heated area 200m2 (2,153 sq ft)
KfW 55 standard
Mechanical ventilation with heat recovery
Current outdoor temperature 6°C (43°F)
Heating energy consumption including hot water 35 kWh
Electricity consumption 9 kWh
COP 3.88
OWLer19 Jun 2021 14:10
Zaba12 schrieb:

29 degrees in the ground floor despite internal shading

Correctly, it should be: "29 degrees on the ground floor DUE TO internal shading"

What does internal shading actually bring? A maximum of 0.5–1°C (0.9–1.8°F)?
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Deliverer
21 Jun 2021 08:47
Yeah... Of course, it makes sense to invest in external shading first before considering air conditioning.
Start with roof windows, then east/west, and only finally south.
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halmi
21 Jun 2021 10:22
We don’t have major issues with the temperatures. During the day, we keep the venetian blinds and roller shutters down, and despite the kids running in and out 100 times, the indoor temperature doesn’t rise above 23-24°C (73-75°F). When it cools down outside, we open the windows and run the mechanical ventilation system at full power. Currently, the living area is at 21.4°C (70.5°F).

Shading is the key with 16 hours of sunlight per day.
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guckuck2
21 Jun 2021 10:24
Deliverer schrieb:

Yeah... Of course, it makes sense to invest in external shading first before considering air conditioning. First roof windows, then east/west, and only finally south.

During the construction phase, yes. Once the damage is done, retrofitting external shading becomes very complicated. That’s when you really have to weigh the options carefully...
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Deliverer
21 Jun 2021 10:29
guckuck2 schrieb:

During the construction phase, yes.
*looks around* ...
Actually, we are in the house building forum. ;-)

Of course, retrofitting is inconvenient – but it is usually possible. In my opinion, it is definitely more ecological and probably even more economical to first install exterior shading and then air conditioning. However, in the end, everyone has to calculate this for themselves, since "a piece of exterior shading" is quite individual.
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halmi
21 Jun 2021 10:31
Edit: It is 21.8 degrees Celsius (71.2°F).

In general, hardly anyone gives much thought to the topic of shading.

Whiskey bottles and thermometer on a kitchen countertop