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Central Heating

UFH Pipework and Soil Pipe

Anonymous user 09/03/2024 - 3.29 PM

Hello I am connecting UFH pipework to a manifold. The location of the manifold is such that the most direct route from the flooring is to cross a soil pipe, either under or over, which runs almost horizontally (obviously at a downward angle). Is there an issue with the UFH barrier pipe (this pipe will be 40-50 degrees centigrade) crossing under the soil pipe to get to the manifold? The two pipes will be apprx. 2cm apart. In addition, the UFH pipe would run in parallel with the vertical part of a connecting soil pipe (connects to the 'almost horizontal one'; first floor toilet to ground floor toilet) up to the first floor. The purpose is so that they can share the same plasterboard boxing that already exists for the soil pipe rather than creating a new separate boxing.

Are you a tradesperson and able to answer this question?

2 Answers

Joe Bath

Rating: 5 out of 5

Bath

There shouldn't be a problem with the temperature if you use a heat barrier - something like lengths of foam pipe insulation around the UFH pipes should do it, where they meet the soil pipe.

Answered2 August 2022

Constantin-Ciprian Mancas

Rating: 5 out of 5

Erith

Ideally underfloor heating pipes should not run up or down not ideally for any obstacales It can cause airlock and you will always have problems with it

Answered2 August 2022