ᐅ Is it better to install the underfloor heating control panel surface-mounted or flush-mounted?

Hello everyone.

We have planned underfloor heating for the ground floor and the upper floor. Now we are wondering: is it better to install the distribution box surface-mounted or flush-mounted?

The plan is as follows:

The technical equipment will be placed in the basement.
The distribution for the ground floor will be in the utility room.
The distribution for the upper floor will be in the hallway.

A friend built a house last year and chose a surface-mounted box. He said if there is a leak, the water wouldn’t run into the wall.
From my understanding, the pipes still pass through the wall and then enter the surface-mounted box from the back (or bottom).
So wouldn’t the water still potentially leak into the wall in that case?

Additionally, a surface-mounted box would add some heat to the utility room. Wouldn't the same apply to a flush-mounted box?

Does either option have any particular advantages or disadvantages?

Thanks for your opinions.

Hello,

wadi1982 schrieb:
The plan is as follows:

The technical equipment will be installed in the basement.
The distribution on the ground floor should be in the utility room.
The distribution on the top floor should be in the hallway.

An acquaintance built a house last year and installed the box surface-mounted. If something leaks, it would not run into the wall.
From my understanding, the pipes still go through the wall and then enter the surface-mounted box from behind (or below).
So wouldn’t the leakage potentially run into the wall then?

The pipes do not go "through" the wall, but through the basement or ground floor ceiling; at this point, you will also have so-called boxing enclosures.

wadi1982 schrieb:
Furthermore, the access point box would contribute to heating the utility room. The same should apply to flush-mounted boxes, right?

I doubt that this kind of “additional heating” is even remotely measurable.

wadi1982 schrieb:
Do either of the two options have particular advantages or disadvantages?

No, except for the fact that you must not drill through load-bearing walls! Also, since the pipes are routed through the respective ceiling, you would have a step or offset above the ceiling; whether that is visually appealing is doubtful.

The box in the utility room is hardly an issue and can be installed below the required meters. Regarding the top floor, as long as the preferred wall does not have a structural function (e.g., stairwell) or is made of lightweight construction, you can build over it or, in your words, install it flush.

And if a pressure test for the underfloor heating is performed before commissioning, nothing can leak afterward unless you tamper with the valves, which you should definitely avoid. Once the system is properly set up, the same applies as with a computer: "never change a running system." I have seen too many times that site managers or well-intentioned homeowners have caused the need to call technicians—mostly on weekends or holidays.

Kind regards

Hello building expert.

Thank you for the explanations.

We are building with a timber frame construction method.
Therefore, the boxes would already be planned into the walls at the factory, which should then be structurally sound.

So you don’t see any problem with it being installed in the wall, as long as it is done correctly?

Since I am a software developer, my status changes from "running" to "crashed" quite often, but I know what you mean.

Hello,

wadi1982 schrieb:
We are building using timber frame construction.
... So you see, if done correctly, there's no problem with that being inside the wall?

No, except maybe that with timber framing, the distribution box might be visible from both sides due to the thinner walls; it’s your decision.

wadi1982 schrieb:
Since I am a software developer, the status changing from "running" to "crashed" happens quite often for me, but I know what you mean

Best regards