Inside the house 10° warmer than outside - how does that happen?

And what is the point of that?

It’s about passive cooling. The various programs for passive cooling are all activated and deactivated with hysteresis and the delta T between outside and inside – if no sensor is available = room setpoint.
So if Kati wants to work with passive cooling, she also has to set the RST accordingly.

Or she can leave everything as it is and first try shading, manual ventilation, and closing windows and doors when it’s hot.
That is already more than half the battle.

The question remains: Why do we even have 28°C in the house?

Where is the house located?
Something is fundamentally wrong here. For some, the heating was still running until two weeks ago (also new construction, because of the ventilation system) and here it’s already 28 degrees in the hut.
What kind of "high-tech huts" do you have? :rolleyes:

Why should something not fit there? It is a modern house. They are like that, it is not an isolated case. As soon as the first rays of sunshine come and there is little or no shading, you have the corresponding temperatures inside.

There are also pages of complaints from new house owners here in the forum and recommendations from long-established residents and those who know the problem.

The question remains: Why do we even have 28°C inside the house?

Take a Tupperware container, put a thermometer inside, close it, and place it in the sun. Your house is like a Tupperware container: sealed and, unlike a Tupperware container, highly insulated. Heat comes in through the window and doesn't go back out. Heat buildup. 28 degrees is nothing for a sealed, airtight house with unshaded large windows. If we didn’t have the natural cooling from the forest, we would need more shading than the 60cm roof overhang.

If we didn’t have the natural cooling from the forest, we would also need more shading than the 60cm roof overhang

Exactly, that must (should) all be planned for in the new cabins. It seems that primarily only the "winter" (heating) is taken into account, while the "summer" (shading/cooling) is ignored. :rolleyes:

The passive cooling is activated when the outside temperature is 3 K higher than the room setpoint for 2 hours and starts when it is 3 K lower for 2 hours.

In my opinion, the specification of 20 degrees fits quite well.


Try turning on the passive cooling.