ᐅ Single-Pipe Heating in Niches: Relocate, Insulate, or Replace?

Created on: 2 Dec 2020 10:00
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simimimi
Hello everyone,

I am currently renovating my condominium built in 1986.
The apartment currently has a single-pipe heating system, and the radiators are installed in recessed heating niches.
Due to thermal bridges in these heating niches, mold has naturally developed.
Therefore, I have the following questions:

Should the radiators be moved forward and the niches be bricked up?
If so, what is the best way to do this?

Alternatively, should the radiators be left as they are and the niches insulated?

Or would it be better to remove the entire screed and install a new underfloor heating system?
manohara2 Dec 2020 15:38
I can’t fully understand it, but he probably knows better...

Insulation like it used to be done, for example a polystyrene wallpaper with aluminum foil or something similar, where you probably don’t have to change the mounting and piping, doesn’t seem effective to me.

But I’ll step out of the discussion now. I have my opinion, but not much experience...
11ant2 Dec 2020 15:42
simimimi schrieb:

The room temperature in the apartment is still around 22-23°C (72-73°F), even now that the heating has been completely turned off due to renovation work.

In Germany, December is winter (???).
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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nordanney
2 Dec 2020 16:09
simimimi schrieb:

The room temperature in the apartment is still around 22-23°C (72-73°F), even now that the heating is completely turned off due to renovation work.
I’m curious how that works! If that’s really the case (which I doubt, based on my own apartment insulated with ETICS and triple-glazed windows, surrounded on three sides by other apartments), the ideal option would be to simply remove the heating and close off the recesses. Why heat if it’s already too warm anyway?
At that temperature, mold shouldn’t develop anywhere when ventilating, since it’s too warm.
simimimi schrieb:

The problem with adding a panel in front is that it’s a single-pipe heating system, and one plumber said that supposedly wouldn’t work.
Find a professional ;-)

P.S. Why not discuss insulating the house at the owners’ meeting? Then you could also apply for the KfW funding program (grant option).
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simimimi
2 Dec 2020 16:16
The heat in the apartment probably comes from the riser pipes running through the middle, as it is even warmer in the bathroom where the riser pipes are located.