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
seat8814 Jan 2021 10:38
That's true, a gas tank wouldn't be suitable for me either; it just always looks awkward.
Tolentino14 Jan 2021 10:42
Even though I theoretically know that this is not the case, a gas tank would still feel to me like a dormant volcano.
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pagoni2020
14 Jan 2021 10:49
Zaba12 schrieb:

Well, basically, you first need the option to install a gas heating system without having to bury a gas tank on your property.

Although we don’t use gas, in our residential area 4 out of 10 homes have a gas heating system with a buried gas tank. We also considered it since we are not connected to the gas network.
When the tank is buried, it’s out of sight. In the past, it was common to have an oil tank even inside the basement. Nowadays, pellet or wood storage is more common, or usually there is a sometimes still audible metal “monster” of an air-to-water heat pump right at the house, which isn’t exactly pleasant either. So honestly, I’m not completely sure that a buried tank is necessarily the worst option. Currently, here in Saxony, we have one of those tanks in the garden (there are many of them here)… eventually you just ignore it or let plants grow around it.
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pagoni2020
14 Jan 2021 10:55
Tolentino schrieb:

Even though I theoretically know it’s not the case, a propane tank always feels like a sleeping volcano to me.

Man... tourists pay a fortune just to see an actual volcano...
At first, I felt the same way because I wasn’t used to it from my region in Baden-Württemberg. By now, it’s normal for me and I barely notice it anymore. Although the underfloor heating in this house was installed somewhat roughly with gas, it does one thing well: it runs (knock on wood) without any problems and warms as it should, even in the bathroom without a heated towel rail. Considering what I sometimes read about air-to-water heat pumps, that’s already an achievement.
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Zaba12
14 Jan 2021 20:29
Zaba12 schrieb:

Yes, I’m doing that. I’ve just reset it now. The heat pump just started as well. Tomorrow at 8 PM I’ll record the heat output.

Or is the heat output shown in the data? Then I could even take the value from yesterday directly.

@Bookstar the 24 hours are up.

The heat output is 55.7 kWh. The heating cycle started 3 times and ran for a total of 7.1 hours (7:06).
With 2 kWh electricity consumption, that makes 14.2 kWh of electricity for the 24 hours.
1 hot water cycle ran for 19 minutes with roughly 2.7 kWh. That’s about 0.9 kWh.

Currently:
- Upper floor bathroom 20.4 degrees Celsius (69°F)
- Upper floor child’s room 1 20.2 degrees Celsius (68°F)
- Entire ground floor 22.5 degrees Celsius (72°F)

Table with start time, mode, duration, and measuring values for heating and domestic hot water.


Blue display of a heating/domestic hot water meter showing consumption values in kWh and a green button.


Time series with three lines: TRLsoll violet, TVL red, and TRL blue; temperature progression over time
Tolentino14 Jan 2021 20:32
I've got it. Zaba's family showers once a week, and Bookstars takes four full baths a day.