Hello everyone.
As a first-time homebuyer, I have many questions. One that has been on my mind lately is this:
We have a KfW70 house with good insulation (16cm (6 inches) masonry and 18cm (7 inches) insulation), and underfloor heating powered by a ground source heat pump.
When I drop my little one off at kindergarten in the morning, I am always surprised that the tiles in the kindergarten’s entrance area feel noticeably warm.
Our tiles, for example in the living room, on the other hand, feel noticeably cold. The thermostat in the living room is set to 20°C (68°F), and it maintains that temperature well, which is good. But why do the tiles feel cold to the touch?
Is it because the kindergarten is not heated with geothermal energy and, on the other hand, is not insulated like our house?
Of course, the underfloor heating is meant to maintain the room temperature (which it does) and not to warm your feet. But what explains the "noticeably cold tiles" anyway? Our heating system obviously doesn’t have to work as hard because of the good insulation.
An explanation would definitely help me feel more at ease.
As a first-time homebuyer, I have many questions. One that has been on my mind lately is this:
We have a KfW70 house with good insulation (16cm (6 inches) masonry and 18cm (7 inches) insulation), and underfloor heating powered by a ground source heat pump.
When I drop my little one off at kindergarten in the morning, I am always surprised that the tiles in the kindergarten’s entrance area feel noticeably warm.
Our tiles, for example in the living room, on the other hand, feel noticeably cold. The thermostat in the living room is set to 20°C (68°F), and it maintains that temperature well, which is good. But why do the tiles feel cold to the touch?
Is it because the kindergarten is not heated with geothermal energy and, on the other hand, is not insulated like our house?
Of course, the underfloor heating is meant to maintain the room temperature (which it does) and not to warm your feet. But what explains the "noticeably cold tiles" anyway? Our heating system obviously doesn’t have to work as hard because of the good insulation.
An explanation would definitely help me feel more at ease.
C
crazy517020 Nov 2014 10:35The shower was not yet in use. There are two thermometers in the room, showing a maximum difference of 0.2°C (0.36°F).
Call your heating technician, explain the situation, and ask if he would like to stop by for a piece of cake. It seems to me that the terminology is not clear to you. The 35 degrees Celsius (95°F) will be the flow temperature, not the room temperature. You were probably introduced to the heating system, right? If not: What does the manual say?
C
crazy517020 Nov 2014 14:01I refer to the data I entered on page 1. It states there that the room temperature is exactly 35° (95°F). My detailed briefing was given by explaining each menu item to me. In the large construction project, it was simply said that the plumbing company only installs the systems but cannot adjust them. Ridiculous.
Point 1: You should be aware that underfloor heating reacts rather slowly. The thermostat settings take some time to have an effect.
Point 2: Was a hydraulic balancing carried out during the installation?
Point 3: I would first ignore the temperature readings on the individual room thermostats and check if the system can actually reach the desired room temperature. If that works, you can most likely adjust the heating curve so that the displayed temperatures match the actual room temperature.
Try searching for "heating curve settings."
Point 2: Was a hydraulic balancing carried out during the installation?
Point 3: I would first ignore the temperature readings on the individual room thermostats and check if the system can actually reach the desired room temperature. If that works, you can most likely adjust the heating curve so that the displayed temperatures match the actual room temperature.
Try searching for "heating curve settings."
C
crazy517020 Nov 2014 15:101. The temperature has risen by about 18 degrees since yesterday evening.
2. Yes.
3. That’s exactly the point. We don’t even manage to reach the desired 20°C (68°F). If I could achieve my 20°C (68°F) with the thermostats fully turned up, I would be happy.
2. Yes.
3. That’s exactly the point. We don’t even manage to reach the desired 20°C (68°F). If I could achieve my 20°C (68°F) with the thermostats fully turned up, I would be happy.