Good morning everyone,
I wanted to ask what your house’s electricity consumption is at night when everything is quiet and sleeping, so what is running continuously?
We have a newly built house, moved in summer 2019. Our building services include underfloor heating (air-to-water heat pump), controlled mechanical ventilation (runs at full power 3 times a day for 2 hours each, then reduced), a photovoltaic system, and otherwise the usual nighttime appliances (phone charger plugged into USB outlet, e-bikes charging occasionally, 2 TVs on standby, Alexas on standby, etc.).
At night, we have a continuous consumption of about 232W (with ventilation running at reduced power and when the heat pump is not producing). I can see this in the app for the photovoltaic system. From 0:00 to 6:30 a.m. we consume about 2.8 kWh.
How about you?
Best regards
I wanted to ask what your house’s electricity consumption is at night when everything is quiet and sleeping, so what is running continuously?
We have a newly built house, moved in summer 2019. Our building services include underfloor heating (air-to-water heat pump), controlled mechanical ventilation (runs at full power 3 times a day for 2 hours each, then reduced), a photovoltaic system, and otherwise the usual nighttime appliances (phone charger plugged into USB outlet, e-bikes charging occasionally, 2 TVs on standby, Alexas on standby, etc.).
At night, we have a continuous consumption of about 232W (with ventilation running at reduced power and when the heat pump is not producing). I can see this in the app for the photovoltaic system. From 0:00 to 6:30 a.m. we consume about 2.8 kWh.
How about you?
Best regards
Unfortunately, I can no longer read the actual consumption of the air-to-water heat pump because the technician damaged the real consumption data when installing a software update...
During the summer months, our monthly electricity consumption ranges between 500 and 650 kWh, and in the winter months it varies from 850 up to 1,200 kWh.
I estimate the electricity consumption of the heat pump to be around 4,000 to 4,500 kWh.
For 4 people, I don’t find this consumption high. 1. We keep most rooms at 22°C (72°F) or higher, we shower daily, often several times a day, and I work permanently from my home office.
During the summer months, our monthly electricity consumption ranges between 500 and 650 kWh, and in the winter months it varies from 850 up to 1,200 kWh.
I estimate the electricity consumption of the heat pump to be around 4,000 to 4,500 kWh.
For 4 people, I don’t find this consumption high. 1. We keep most rooms at 22°C (72°F) or higher, we shower daily, often several times a day, and I work permanently from my home office.
Ötzi Ötztaler23 Dec 2020 17:26
Which air-to-water heat pump do you have? And what is the heating load? Or what does the energy performance certificate say?
Bookstar schrieb:
For 240 m² (2583 sq ft) of heated area, 5k could be accurate. That would mean only 90 Euros in heating costs per month. It could correspond to a seasonal performance factor (SPF) of 3.5 to 4, which is completely average!
Depending on the room temperature and location, that might even be quite good! We just don't know enough.
It’s hardly the heating capacity, such an efficient pump doesn’t exist 😀 With a seasonal performance factor of 4, that would be about 20,000 kWh. Even for 240 m² (2583 sq ft) in a KfW 55 standard building, that is too high. At least in principle.
But you’re right, it naturally also depends on the location. We really don’t know enough and can only speculate.
Ötzi Ötztaler schrieb:
Which air-to-water heat pump do you have? And what is the heating load? Or what does the energy certificate say?Waterkotte EcoTouch Ai1 Air 5018.5.The heating load is 8 kW. At least, that’s what the hydraulic balancing report from the energy consultant states.
seat88 schrieb:
We use about 150 kWh per month 😀 but we heat with gas.Those of us heating with gas and having low consumption really get overshadowed by the high air-to-water heat pump figures (or whatever they call them). They just don’t want to hear that :p Merry Christmas
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