Why would an UFH system lose pressure?

If an underfloor heating system is losing pressure, you should check the following:

  • If the system is losing pressure either during testing and/or after the system has been filled, but the flooring has not been laid, simple visual/manual checks around the manifold and along each loop of pipe should identify the problem area.
  • If there are no clear visual signs, each loop/circuit may require a separate pressure test to identify the exact location.
  • If the floor has been laid, identification of the fault can be traced through signs of a wet patch around the leak. Obviously to make the repair, the floor will have to be raised. In screed floors, excavate carefully in the centre of the wet patch.
  • Any leaks on the manifold are generally due to the connection and any loose nuts and unions will require tightening.
Why would an UFH system lose pressure?

Couldn't find what you were looking for?

Alternatively you can speak to a member of our team - Subject to Operating Times

Return to top
Are you a homeowner? Please click here.