ᐅ Underfloor Heating – How to Insulate the Supply Lines to the Rooms?

Hi.

Contrary to the original plan, all the supply lines to the respective rooms were routed through the bedroom. I’m not very happy about that.

What is the best way to insulate the supply lines without reducing the minimum screed coverage? The pipe diameter is 16mm (5/8 inch), and cement screed will be used. Corrugated conduit? But that doesn’t really insulate.

Thanks

cryptoki schrieb:

How can I best insulate the supply lines without going below the minimum screed cover?

Two options are possible:
1. Do not insulate, because there is no space.
2. Buy pipe insulation (such as Armaflex or similar) and make the screed 6cm (or however thick is required) thicker. Adjust all door lintels, bathrooms, etc. accordingly.

nordanney schrieb:

Two options are possible:
1. No insulation, because there is no space
2. Buy pipe insulation (Armaflex or similar) and make the screed about 6cm (or however much is needed) thicker. Adjust all door lintels, bathroom, etc.

Thank you. The cement screed will be installed at 65mm (2.6 inches). With 16mm (0.6 inches) pipes, theoretically 9mm (0.35 inches) remain for insulation. Increasing the screed thickness won’t be possible due to floor-to-ceiling windows.

Is there a reason why the heating installer does not run the supply line through the wall? Everything goes through the door, which means about 30m (98 feet) per heating circuit just for supply and return lines (15m/49 feet each).

cryptoki schrieb:

Is there a reason why the heating engineer is not running the supply line through the wall? Everything goes through the door, so for each heating circuit there are about 30m (100 feet) just for supply and return lines combined. (15m (50 feet) plus 15m (50 feet))

You need to ask the heating system installer. Why is the heating circuit manifold located in the bedroom, which is the worst possible room for it?

You will now have to accept that the bedroom will become one of the warmest rooms.

nordanney schrieb:

You’ll need to ask the heating system installer. Why is the heating manifold located in the bedroom, which is actually the worst place for it?

You’ll now have to accept that the bedroom will be one of the warmest rooms.

It’s integrated into the sloped ceiling in the bathroom. If I had known, it would have been placed in the hallway. Actually, four heating circuits should run through the wall from the bathroom. That way, only the main bathroom would still be accessed through the bedroom. For some reason, the execution stuck to the plan.

There has to be some kind of insulation. If in doubt, the corrugated pipe… which takes up a fair amount of space. Since everything is controlled with KNX, the heating circuits won’t run continuously day and night.

cryptoki schrieb:

Since everything is controlled with KNX, the heating circuits will not run continuously day and night.

What exactly do you want to control in a underfloor heating system? It should operate with the lowest possible supply temperature.