Radiator Dead Legs

[LennyM1984]

I'm currently redoing the kitchen and would like to remove one of the radiators (it used to be two rooms and so there are two rads quite close together).

The floor is concrete and the 22mm supply lines are about 80-100cm in from the rad.

I don't really want to go excavating them so was wondering if I could just cap the 15mm rad tails below floor level and leave the dead legs in situ.

I am reading a lot of conflicting advice about this (some say it doesn't matter, some say l'll get airlocks, some say I will die of legionnaires... Which doesn't really make sense to me as I'm not planning to shower in the CH water).

So are there any plumbers/heating engineers out there that could advise?

[cliffords]

I have caped off in two places in my house, a kitchen and a bathroom.
In both cases the pipes are visible in the back of a cupboard and in a small boxed in area in the bathroom. I kept a basic access to them so I could monitor. Nothing has happened in the four years since I did it . Heating works fine no air present. If you turn a radiator off at both ends you have the same set up , so I can't see how it's any risk.

[Antony Moxey]

The legionella thing is nonsense - your radiators are part of a closed loop system (including dead legs) so you're not ever coming into contact with the water or any aerosol effect from those pipes.

[Fatboy]

Antony Moxey said:

The legionella thing is nonsense - your radiators are part of a closed loop system (including dead legs) so you're not ever coming into contact with the water or any aerosol effect from those pipes.

And the water will have inhibitors in it which aren't exactly encouraging bacteria growth!