Still considering gas heating for the new building?

But if it suddenly gets significantly warmer, the underfloor heating compensates very slowly.

The underfloor heating does not compensate at all... if it gets warmer outside, the boiler switches off and that's it... the screed + walls + furniture then first have to cool down enough for the underfloor heating to have to turn on again.

We want something that is all cleanly electronically controlled.

That's difficult in a modern house... I can already tell you that your south side will generally be too warm...

So is it actually normal to have 23.5° for a whole day during strong temperature increases instead of the desired 21°

What do you mean by strong temperature increase and for how long?

We'd prefer to have air conditioning but that's probably something that is, on the one hand, expensive to maintain and, on the other hand, can only be managed with high investments for a 220m² house.

You don't have to air condition the whole house... and it's not as expensive as you might think...

On the other hand, I've heard there are also heaters (heat pumps) that have an integrated cooling function. But I dare to doubt that this is the same as an air conditioner.

You are right to doubt that... only a few degrees difference are possible and it basically only leads to a cooler floor... it's more of a sales trick...

You write that individual room control is superfluous.

Yes, it is. In modern, tightly built houses with ventilation systems, underfloor heating and lots of insulation, a temperature difference from room to room is only possible/to some extent achievable.

Is that outdated?

No, it is not outdated, it is even required by the Energy Saving Ordinance, but as so often in politics, it misses reality.

So you can design the underfloor heating so that you want 23° in the bathroom, 18° in the bedroom, 21° in the other rooms and 20° in the kitchen?

Sort of, rather like this: bathroom 23-24°, everything else 20-21°. You actually never get below 20° if the house is occupied and you want it cozy in the bathroom with reasonable costs.

That would be very bad for resale since it’s a very individual matter.

No, because you can always adjust a bit and people’s desired temperatures are very similar... but you can’t have 24° in your kitchen, but nobody really wants that anyway...

It will be very difficult to verify a correct installation and correct planning of the underfloor heating. And in case of doubt, it certainly won’t get easier to enforce the warranty and provide corresponding proof.

Yes, life doesn’t get easier...

While I’m reading about the outdoor sensor. It hangs on the north side and so it tends to register cooler temperatures.

Which it should, or don’t you have rooms on the north side? It is cooler there than e.g. on the east side.

What alternatives are there to air conditioners per room? Isn’t there anything that can run through the controlled residential ventilation?

The only solution instead of air conditioning if you really want it cool is: thick monolithic walls... but whether you want that...

Controlled residential ventilation and air conditioning are apples and oranges...

By the way... back to the original topic. Is gas + controlled residential ventilation actually a sensible combination? Or is controlled residential ventilation only recommended with heat pumps?

At first glance, controlled residential ventilation has nothing to do with heating and is always useful in today’s houses... regardless of how they are heated.

An air conditioning is not really expensive. We paid just 5k for a very good unit in three rooms (on the same floor).

It is also the operation that eventually breaks all limits... the acquisition is IMHO not the problem...

What does a strong temperature rise mean to you and for how long?

About one day from 21 to 23.5°.

It should, or don’t you have any rooms facing north? It’s cooler there than, for example, in the east.

Yes, yes. We also deliberately put the bedrooms and living rooms there. To the south then more the kitchen, bathrooms, cloakroom, etc., what you don’t need so long.

It was about heating at the beginning. From what I have read so far, I am more in favor of gas than a heat pump. But I think first a calculation has to be made after the architect’s planning to see which solution is more economical.

About one day from 21 to 23.5°.




Yes, yes. We also specifically place the bedrooms and living rooms there. To the south then rather kitchen, bathrooms, wardrobe etc., things you don't use for so long.
...

The living rooms should be to the south, the functional rooms to the north - generally speaking.


Brief regards

The living areas should be in the south, the functional rooms in the north - broadly speaking.

Best regards in short

No, we don’t want to sit in the heat in summer. Definitely not. That’s not how our house will be oriented. Especially since we don’t want the living room on the front door side. It’s not possible to have 21°C in summer anyway. But I don’t want the rooms arranged to get hotter than absolutely necessary.

Besides, where we watch TV, we can easily do without sunlight.