Air-to-water heat pump - Nest Thermostat

Against the oven, we have the air conditioning - all a matter of proper planning.

Because you overestimate them or they are noticed through the return flow if they are supposed to be that strong – which I can't quite imagine in winter yet.

And a fireplace is a special treat that normally has no place in a modern house. I have also ordered one because I don't care and I can still open a window without fear.

But you haven't understood how the individual heat carriers and especially the hydraulics of underfloor heating work and what a thermostat messes up with that.

By the way: I have planned an exhaust hood – crazy, right?

I know of 4 houses with heat pumps in my private environment that each threw out the EER – and strangely enough, not only save electricity noticeably but also nobody suffers from heat. That's theory and practice...

I believe you are just claiming that we don’t understand it, but you don’t bring a single real argument or explain anything. That’s not how it works. You have heard somewhere that EER is fundamentally stupid and you keep spreading that – that’s how it looks to me.
By the way, the overheating with sun and fireplace is not noticed immediately either, but often only much later because of inertia. The return temperature reacts to such events like fireplace or sun way too slowly.
Whether it is better or worse in a house in your private environment without it depends extremely on the circumstances. It is total nonsense to bring that up as an argument. Of course, you can’t heat efficiently with the heating curve turned all the way up and a permanently throttling EER, and then save after a hydraulic balancing and without EER. But that is not due to the system itself, but incorrect settings by the heating engineer.
When you turn the fireplace on you enjoy the warmth and just save less energy than you could because the heating overall delivers too much (you don’t notice that, it’s just cozy warm anyway).
With proper design and heating system, the EER should basically only switch off in the cases I mentioned like sun, fireplace, and comparable situations (e.g. family gathering with a few kW of manpower heating output), and otherwise stay open. Then removing the EER saves exactly 0°C, on the contrary, it becomes more expensive. But apparently that is not so easy to understand.
Especially when going towards

 

The topic has been beaten to death so many times everywhere... anyone who understands the technology knows that ERR brings nothing in a modern house...

and I can speak from experience... 3 years without it... not heating the heat carrier at all, that’s where the savings lie, not in throttling individual heating circuits...

@Bautraum 2015
Yes, a fireplace brings nothing except romantic atmosphere and sauna feeling, well, and afterwards, of course, dirt...

You see, you haven’t read or understood my post properly! Without EER in well-insulated houses, it quickly happens that the heat carrier is overheated unnecessarily! The EER ensures a faster higher return flow and the heat generator’s response to the additionally introduced energy. I would also ask you for real arguments instead of playing a broken record.

Sure, I of course read many arguments from you and happily let you continue living with them. They are really immensely important instruments in a sluggish system.

And overheating of the heat carrier? Please explain that to us exactly – so far there has only been hot air.

Yeah, of course I read many arguments from you and gladly let you continue with them. They are really immensely important instruments in a sluggish system.

And overheating of the heat carrier? Please explain that to us exactly – so far there has only been hot air.

From you. As in this post. I did not write overheating, but reacted to Mycraft's post. At least try, if you can't say anything expert-wise, to follow the discussion.

I’m telling you – he can’t do it