House too warm, remote heating controller set to 1

I also have the little problem that I don't get enough temperature in the large bathroom without turning the flow temperature quite high. In the heating system, I have now set the minimum flow temperature to 28 °C; below that, it feels too cold, i.e., the desired room temperature of 24..25 °C is not reached and/or the tiles feel cool. The fault with us is probably that not the entire floor area is heated with underfloor heating. As a result, only the bathrooms are running at full flow (3 L/min), all other rooms at about 1 L/min. The installation spacing in the bathroom is 100 mm, in the other rooms 150 mm, in secondary rooms 200 mm.

Is there a towel radiator that is fully turned up as well? Our bathroom does not reach 24° with my settings either. There is also far too little free space for that. I have the towel radiator fully turned up. So far, no one has complained that it is only around 22°. As long as that is the case, I can keep the VLT relatively low. Alternatively, a heating cartridge would have to be installed in the towel radiator.

Yes, we even have a pretty big one, which was more expensive than the saved second heating circuit. Another mistake like that.

With the high and steep heating curve, it feels very comfortable now, and energy-wise I don't care. We also have the effect that about 6 m² of the ~19 m² bathroom is walled off; the sauna is in there and there is no underfloor heating; in addition, the underfloor heating manifold for the upper floor is in the bathroom. 6 heating circuits go into 3 bedrooms or children's rooms, which are currently not heated. These 12 pipes naturally also occupy a corridor that remains cold at the moment. All this leads to only about 10 m² of the 19 m² being heated, which have to be correspondingly warmer. When I come out of the shower, especially in the morning, I already like that.

In a new design, I would now include the second heating circuit so that there are 50 °C for the bathroom radiators.

I think I have a problem like that too. Some of the room controllers are set to 0, others to 15, others to 21, but it doesn't matter, it's 21 everywhere. Too warm for sleeping, unnecessary in the guest bathroom. But I won't adjust anything, open anything, just a bit; the heating engineer should come and check it. That's what he's there for. Karsten

He was here today. It was those valves in the distribution box. He says they have a factory setting and all have to be fully opened once, then they also close again. So he opened those that were still in their original state by raising the room temperature to 30 degrees, then we turned to star mode, and suddenly they dropped again. Now everything works. - It's service, he says. Always happy to come again, he says. So: call, folks, before you break something yourself. Karsten

Well, I'm curious what he would say if you regularly called about adjusting the heating curve. He would make one adjustment, and it would be set so high that it always stays warm. And then it would conflict with the room controllers. When you then need a new heating system after 8-10 years due to too high consumption, he profits again. You were satisfied because he came out once and declared it a service.

Because the fact is: this step should have already been done during the commissioning. So his mistake. Not a service, but an obligation.

I then have to agree with that, Karsten