Hello, we moved into our newly built house about six months ago, which was constructed as a KfW 50 house with a living area of approximately 145 sqm (1,560 sq ft) over two floors plus an attic (no basement). An IDM Aero/iPump 2-8 heat pump is installed, and there is underfloor heating everywhere.
Unfortunately, I don’t have details about the design of the underfloor heating, so I don’t know the pipe spacing or the target temperature used for sizing the heating system.
Our current problem is that not all rooms are warming up equally.
The setpoint temperature for the heating circuit is currently 23°C (73°F), with an eco mode temperature of 16°C (61°F). The heating curve is set at 0.44 (I increased it today to test the impact; it was previously set at 0.40). The parallel shift is set to 0°. The heating activation time is set to 15 minutes. All thermostats in the rooms to be heated are set between 3 and 6, but we still do not reach the target temperature. In the children’s room, the thermostat is currently set to 6, but the thermometer in the room showed a temperature of 16.1°C (61°F) during the day. How can this be?
I’m running out of ideas about what could be causing the rooms not to warm properly.
Also, the energy consumption seems much too high in my opinion. Our total electricity consumption since 1.7. has been around 3600 kWh. :o
Does anyone have any ideas or advice?
Unfortunately, I don’t have details about the design of the underfloor heating, so I don’t know the pipe spacing or the target temperature used for sizing the heating system.
Our current problem is that not all rooms are warming up equally.
The setpoint temperature for the heating circuit is currently 23°C (73°F), with an eco mode temperature of 16°C (61°F). The heating curve is set at 0.44 (I increased it today to test the impact; it was previously set at 0.40). The parallel shift is set to 0°. The heating activation time is set to 15 minutes. All thermostats in the rooms to be heated are set between 3 and 6, but we still do not reach the target temperature. In the children’s room, the thermostat is currently set to 6, but the thermometer in the room showed a temperature of 16.1°C (61°F) during the day. How can this be?
I’m running out of ideas about what could be causing the rooms not to warm properly.
Also, the energy consumption seems much too high in my opinion. Our total electricity consumption since 1.7. has been around 3600 kWh. :o
Does anyone have any ideas or advice?
R
RotorMotor13 Jan 2024 16:19Hmm, you can’t see everything clearly in the pictures, but if the affected room is shown on the left in the top image, then the flow rate there is zero, right?
Please take another picture showing the sight glasses and actuators at the same time.
Please take another picture showing the sight glasses and actuators at the same time.
RotorMotor schrieb:
Hmm, you can't see everything clearly in the pictures, but if the affected room is shown on the left in the top image, then the flow there is zero, right?!
Please take another photo showing the sight glasses and actuators at the same time. Sorry, I wasn’t entirely clear. The second one from the left is the affected room.
Maybe it’s clearer here.
R
RotorMotor13 Jan 2024 16:34Well, could it be that Child 1 and Child 2 are switched? Or Child 2 and the hallway, etc.?
RotorMotor schrieb:
Well, could it be that Child 1 and Child 2 are swapped?
Or Child 2 and the hallway, etc.? I would need to test that precisely, but honestly, I don't think so. Otherwise, one of the other rooms would currently be heating up, which is not the case. (Except the bathroom, but here the valve is open because the thermostat is currently set to 3.)
It feels like the floor is also "warm," but for whatever reason, the entire room is not heating up accordingly. Right now, it’s at least 17.4°C (63.3°F).
As a test, I placed the thermometer on the floor earlier to measure the temperature directly at ground level. It shows 19°C (66°F), which I believe is too low given the current supply temperature of about 33°C (91°F). Obviously, this means the room isn’t really warming up.
But what causes this…
The other rooms, where the valves are also completely closed, are noticeably cooler. So the distribution should be correct.
I’m not sure if everything is set up optimally; maybe someone with more expertise should take a look.
But what causes this…
The other rooms, where the valves are also completely closed, are noticeably cooler. So the distribution should be correct.
I’m not sure if everything is set up optimally; maybe someone with more expertise should take a look.
R
RotorMotor13 Jan 2024 17:41What are the surrounding temperatures like?
Is there a ventilation system installed?
Is there a ventilation system installed?
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