Underfloor heating in the children's room? Some rooms planned without underfloor heating? Air-to-water heat pump removed?

you could theoretically have insulated your pantry from the inside with thin insulation boards? In that case, you would insulate "against the warmth of the other rooms" instead of the usual "insulating against cold from outside."

In the same way, you can keep a pantry in an insulated basement cooler by having as much contact as possible with the outer walls, right?



just as an example after 20 seconds of DuckDuckGoing

In principle, many experts recommend that the temperature in the bedroom should be between 16 and 18 degrees. Sleep medic Geisler prefers to be cautious with such fixed temperature specifications. "The ideal room temperature is one at which you neither sweat nor feel cold," he says. "How many degrees that is varies individually and also depends on factors like the bedding and sleepwear."

you could theoretically have insulated your pantry from the inside with thin insulation boards? In that case, just insulate "against the heat from the other rooms" instead of the usual "insulate against the cold from outside."

Just the same, you can keep a pantry in an insulated basement colder by having as much contact as possible with the exterior walls, right?


just as an example after 20 seconds of DuckDuckGoing

yes, you could do that. but that’s stupid and nobody does it. if you need temperature differences of 7 degrees between different rooms to be happy, then an old building is your only option. the folks here in the forum have hinted at it, but exceptionally I’ll be direct. that won’t work and is a mess.

for sleeping: lie naked and without a blanket in a room at 35 degrees. very refreshing.

since 8/3/2018 we have had a constant 21 degrees in the bedroom every day of the year. and we have banned the winter blankets from before, as well as the thin summer sheet.

We still have a regulator in every room. Especially in the children's rooms, they are set to level 4 (out of 6). It is noticeably warmer there (probably only 2 degrees, but it feels like more) than in the hallway, for example. The bedroom is "not" heated. In the evening, I open the window and briefly ventilate down to 17 degrees so that my daughter in the bedside crib can fall asleep better. After 2 hours, we are back at 19-20 degrees again. I don't think the heating is that sluggish. Ours actually reacts quite quickly to sudden cold. But as a last resort, a wood stove will be added next year, which can really roar when we feel chilly.

It is usually due to the system itself. To save money, it is often dimensioned far too small, and as a result, a sad 100 mm plate valve is connected to one or two 75 mm pipes in the 2-person bedroom. Before the necessary air volumes arrive there, the users have long since nervously turned down the central unit to avoid the flow noises. Effect of the system = 0

So, with a sufficiently dimensioned ventilation system and ideally a trench collector brine heat pump, individual rooms should be able to be well "cooled" if needed?

you also practically have underfloor heating with ERR? Also a ventilation system that cools too little because you open the window or without it? "Bedroom is not heated." You have already installed underfloor heating there but set very low temperatures (hydraulic balancing)?

That is because only the air cools down and not the mass of the building. The thermal energy is stored in the furniture, walls, and ceiling. This has nothing to do with inertia in the actual sense.

It is usually due to the system itself. To save money, it is often vastly undersized, and as a result, a sorry 100mm disc valve is installed on one or two 75mm pipes in the 2-person bedroom. Before the necessary air volumes arrive, the users have long since frustratedly turned down the central unit to avoid the flow noises. Effect of the system = 0

It is a Paul Focus 200, with 200 m³/h and suitable up to 150 m² for a 122 m² apartment size. It doesn’t look entirely wrong to me.

But it has nothing to do with the air being musty or stuffy in the morning when the window is closed. It is simply something else when air blows in through the window than when an imperceptible constant air exchange takes place through the ventilation system.

After we have lived in the house for some time, I can say whether our Zehnder 450 makes a noticeable difference.