ᐅ Heating circuits/thermostats for living/dining/kitchen areas with underfloor heating/heat pump

No, that is not sufficient. It is also specified how they are supposed to operate.

From the posts I found through the search, I gathered the following:
- There are regulations that must be followed
- Failure to comply with regulations can result in penalties
- If you receive subsidies or grants, they can be reclaimed
- You can have a single-room control system installed but effectively not use it if it’s not needed (this seems like a viable option to me)
- You can apply for an exemption, but in my specific case (simplified building notification process = only one attempt), I would need to discuss this at least with the building authority

or you just do it simply, but you're not allowed to say that...

DragonyxXL schrieb:
I had assumed that individual room control is common nowadays. We are building with a ground source heat pump. Is that basically pointless or only under certain conditions? You can’t achieve a temperature difference of 5-6°C (9-11°F) between different rooms just by adjusting the design of the underfloor heating (narrower or wider loops), right?

It is common, yes, because theoretically it can save about 3% of heating energy. And policymakers only look at those numbers.

What that means (very roughly estimated) is that in a modern house, you might save about 30 euros more by the end of the year.

The fact that a ground source heat pump system requires thermostats in every room plus an additional control system, meters of wiring and extra channels to be installed and closed up by the electrician... and on top of that the electrical consumption of about 2 W per thermostat actuator during operation... hardly interests most people.

But when you weigh all that against the savings, the actual energy reduction is just a fraction of a percent.

And of course, any apprentice in their second year can install such a system, because if the heating circuits are not balanced properly and there are hydraulic faults, the individual room controls will just compensate and make everything appear to work.

Without individual room controls, you have to think carefully and design and install the system to match the house... and who really wants to do that?

You just slap the devices on the wall... and then everything is fine...

I definitely use our ERR!

There are various phases in life when it makes sense to set individual rooms to higher or lower temperatures. You should avoid adjusting the central heating (CH) controller, otherwise the whole calculation will be off.

Children’s room: turn it up in the morning, turn it down at midday, and open the windows in the evening. In winter, I want around 21°C (70°F) during the day and 18°C (64°F) at night. It’s inconvenient if I don’t have a thermostat for that.

When guests arrive (for parties and so on), I turn the living room heating completely down because people tend to overheat the room anyway, so I don’t need the heating adding to that.

Now I’m hearing again: Don’t touch the ERR, it will just put more strain on the heat pump.

I’m glad I can control individual rooms separately, and for me, it makes a difference of more than just 1 or 2 degrees.

Wastl schrieb:
Children’s room: Turn up the heat in the morning – turn it down at midday – open the windows in the evening. In winter, I want around 21°C (70°F) during the day and 18°C (64°F) at night... It’s annoying if I don’t have a thermostat.

What a hassle to turn the heat up in the morning so it’s warm by midday, then turn it down again to make it cooler in the evening. Do your children actually keep the doors closed so this works? In our house, all the doors (except some bathroom doors or the door to the parents’ area) are usually open during the day, so I can adjust the thermostats all I want, but it doesn’t make any difference room by room.

How well insulated is your house that you can still achieve such large temperature differences?