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Central Heating

Suspected leak in oil central heating pipes

Anonymous user 23/02/2024 - 3.33 PM

There is a suspected leak somewhere in the oil central heating pipes. When the heating is on, the oil boiler pressure gauge keeps dropping. You can't keep it in the green area. We haven't searched the suspected leak as all the floors are wood and it would not be an easy task to find the leaking pipe underneath those. We are not sure this route would be worth it as well. There are no clear signs of a leak, apart from a light damp patch in the bathroom floor, at a guess. We were thinking of having new pipes put in? What other options are there? house is over 200 years old floors are solid wood the boiler sits outside copper pipes are currently in and we use oil. thanks.

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4 Answers

Gaswork [Domestic - Commercial - LPG]

Rating: 5 out of 5

Newcastle Upon Tyne

Try running a leak sealer in your heating system. Depending on the size of the leak it might just do the job. From my experience it has worked! Try that 1st, if that doesn’t work then look for other options as cost etc

Answered3 July 2020

Anonymous user

This issue may not be a leak but may also be due to an expansion vessel not charged and therefore resulting in you loosing pressure out the pressure relief valve.

Answered7 July 2020

Nick Reeves

Rating: 5 out of 5

Egham

Try checking the external pipe from the pressure releasing valve in the boiler, if water is dripping out the PRV could be faulty, or the expansion vessel could be faulty. this is more likely to be that cause than a leaking pipe under the floor.

Answered9 July 2020

Pipeworkz ltd

Rating: 5 out of 5

Bordon

If it’s a sealed system it’s probably the expansion vessel needs recharging, check for water around the pressure relief pipe - or put a balloon over the pipe and see if it collects any water . Potentially a leak but not always ! Or get an engineer to come and check the pressure in the expansion vessel which will tell you if it’s flat . If it’s flat then you will definitely be loosing the pressure this way because the water has nowhere to expand when it’s heated and it has to go somewhere which will be through the pressure relief.

Answered30 July 2020