Radiator dismantled - Prevent pipe burst due to cold

Hello everyone,

I have bought a small house, which is being lived in and renovated at the same time.

In the basement, we have replaced the windows and previously insulated from the inside with 6cm Multipor.

To insulate, the radiator in one of the basement rooms had to be removed - the pipes were capped.

Unfortunately, the whole renovation has taken a very long time - and the heating, which should have been reconnected since October, is still missing.

Now it is getting very cold at night and I naturally want to prevent a water pipe burst. Therefore, I am currently heating the room to 19 degrees with a halogen heater - yet I am worried that something might happen to the pipes. The masonry consists of 42cm hollow chamber bricks, as well as plaster and the 6cm internal insulation. The window is new and tight.

The heating pipe runs on the inside of the masonry and is embedded in the masonry with Styrofoam.

Are my measures sufficient or is there a high risk that the pipe will burst?

Will it even get cold enough in the basement for the pipes to freeze? With us, it is always around 12 degrees warm even in the harshest winter. So I would first find out how cold it actually gets.

Regarding the interior insulation. Hopefully, this is not wrong. It could be that moisture penetrates into the basement through the wall and that mold could develop due to the insulation. But I think an expert will also comment on this.

Well, it doesn't get that cold inside. I fear that the frost simply "creeps" through the wall and the wall is therefore colder than the room.

The insulation is diffusion-open and mold-inhibiting :)