Underfloor heating - How to insulate the supply lines to the rooms?

Basically, it is also possible with 5 cm, less than 2 cm are cut out so that the pipes are fully recessed - e.g., System Roth Floorfix, you can check online how it works. Alternatively, you can replace the existing panels with preformed panels (e.g., Uponor Vario Heat Protect), which are prefabricated including pipe guides and are also relatively easy to install.

Thanks. We have found a solution. 3 heating circuits will be rerouted in the attic. The remaining 3 heating circuits go through the bedroom (where one - the hallway is usually off anyway) still run through the bedroom and will then receive minimal insulation. This way, the pipe routes are fine, and the heat development should also be fine. Otherwise, the 3 circuits will simply be turned off in the evening/night and that’s it.

Otherwise, you just close the 3 rings in the evening/night and that's it.

I am annoying, but I have to intervene again If you close the rings in the evening, you notice it about 8-12 hours later. That’s what I mean by "you can’t really regulate it."

Hi. Contrary to the plan, ALL supply lines to the respective rooms have now been laid through the bedroom. I am not so pleased.

If this was not done according to the plan, you can certainly insist on exactly that. and on the other hand, a solution would also not be your task.

I am annoying, but I have to butt in again. When you close the rings in the evening, you notice it about 8-12 hours later. That’s what I mean by "you can’t really regulate it".

8-12 hours is quite a lot. I can feel the underfloor heating here noticeably after 1-2 hours. And when it stops blasting, you can also feel that noticeably in the bedroom, especially if the pipes are still minimally insulated.

If this was not done according to the plan, you can definitely insist on exactly that. and on the other hand, a solution would also not be your task.

We are building together with the regional companies and not against each other. If the existing circuits in the room can remain as they are, then I consider the solution with the 3 heating circuits a good compromise instead of insisting on the maximum of 4. Consideration has been given in many places and improvements to the planning have been incorporated. I will look at the result later.

How do you live now? Above all: what is the flow temperature of your underfloor heating now? That varies depending on the heating system and insulation standard, even if you are currently complying with the building energy law. Example: I have a condominium according to KfW-70 standard, which runs on district heating. The flow temperature of the underfloor heating there is 60°C. I also feel the underfloor heating relatively soon after turning on the thermostats etc. My detached house has the same standard, but with a heat pump and because I had the underfloor heating specially designed for efficiency, the max flow temperature is 33°C and on average below 30°C in winter. If I changed anything on the radiator valve or the thermostats (you really shouldn’t adjust those at all), I would notice it at the earliest after 12 hours. For comfort reasons, you can heat with a higher flow temperature in order to notice differences faster, but then your initial question at the beginning of the thread is like asking which tires to put on your car to save gasoline when you have already decided on the 8-cylinder muscle car (instead of the electric car). So I wouldn’t insulate anything additional there. As you already said, you can also regulate that by thermal balancing in the bedroom. In doubt, the radiator valve for the bedroom basically always remains closed. In your place, I would rather think about insulation between rooms, because your expectation of achieving average differences here and thus saving heating costs is unfortunately wrong. Because in doubt, you simply heat the deliberately cooler rooms via the neighboring rooms and the supposedly saved amount of heat is just additionally required in the other rooms. Unless you insulate in between.