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
Zaba12 schrieb:
Besides, I want to extend the heating cycles! What I actually mean is that I want to reduce the number of cycles within 24 hours to lower the heat pump’s energy consumption.
D
Daniel-Sp21 Dec 2020 12:06Is the heating circuit pump controlled by the heat pump?
An 8K temperature difference in the heating circuit at 0°C (32°F) outdoor temperature is somewhat high. 4.5K would be better.
Which heat pump do you have, and is it a modulating heat pump?
Creating a separate thread would be more appropriate to avoid distracting from the original topic.
An 8K temperature difference in the heating circuit at 0°C (32°F) outdoor temperature is somewhat high. 4.5K would be better.
Which heat pump do you have, and is it a modulating heat pump?
Creating a separate thread would be more appropriate to avoid distracting from the original topic.
It is an AI LWD70a, return-flow controlled. The question is, what can cause such a temperature spread? It only occurs during heating operation. I understand that a low temperature spread is desirable, meaning below 5°C (41°F). But what causes the temperature spread, I don’t know.
@Bookstar
The minimum flow rate of the heat pump is 1200 l/h (5.3 gallons per minute). The nominal flow rate should be 1600 l/h (7 gallons per minute). The system is designed to heat the two basement rooms (3 heating circuits), which are currently off because I don’t want to heat the remaining 38 m² (409 sq ft) without underfloor heating using just 32 m² (344 sq ft) of underfloor heating. Maybe this is where the problem lies?!
I also think that even if the basement were heated, the ground floor wouldn’t be as warm. But if I heat the basement, the energy consumption will increase, right?
@hydraulic balancing: I’m not sure; the flow rates don’t seem too far off.
Currently, the flow rate without the basement is 1347 l/h (5.9 gallons per minute), and with the basement, the 1600 l/h (7 gallons per minute) target should actually be reached.
But before I open the basement heating circuit, I’ll monitor the consumption and temperature with the new heating curve over the next two days.
The minimum flow rate of the heat pump is 1200 l/h (5.3 gallons per minute). The nominal flow rate should be 1600 l/h (7 gallons per minute). The system is designed to heat the two basement rooms (3 heating circuits), which are currently off because I don’t want to heat the remaining 38 m² (409 sq ft) without underfloor heating using just 32 m² (344 sq ft) of underfloor heating. Maybe this is where the problem lies?!
I also think that even if the basement were heated, the ground floor wouldn’t be as warm. But if I heat the basement, the energy consumption will increase, right?
@hydraulic balancing: I’m not sure; the flow rates don’t seem too far off.
Currently, the flow rate without the basement is 1347 l/h (5.9 gallons per minute), and with the basement, the 1600 l/h (7 gallons per minute) target should actually be reached.
But before I open the basement heating circuit, I’ll monitor the consumption and temperature with the new heating curve over the next two days.
D
Daniel-Sp21 Dec 2020 17:30Can you still increase the flow rate in the heating circuit? You should have a lower temperature differential at 0°C (32°F) outdoor temperature. Can the heating circuit pump be pushed harder?
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