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Central Heating Filling Loop

This web page describes:

  • What a central heating filling loop is and does.
  • What can go wrong.
  • How much central heating filling loops cost.

What A Central Heating Filling Loop Is And Does

A central heating filling loop is a pipe that connects central heating system to the mains water supply.

 

A central heating filling loop is used to re-fill (re pressurise) a central heating system with water.

 

The filling loop is not part of the boiler but will connect, and therefore be close, to the boiler.

 

Central heating boiler pressure low

 

The image below shows how a filling loop connects into the central heating system; the filling loop tap connects\disconnects water from the water mains.

 

Filling loop schematic

 

 

The image below shows a filling loop.

Filling loop

 

 

The image below shows a central heating filling loop in situ.

 

Filling loop in situ

 

 

 

What Can Go Wrong With A Central Heating Filling Loop

Central heating filling loops rarely go wrong, the joints between the filling loop and the water pipes sometimes leak.

 

The filling loop tap can sometimes 'jam' (seize) as it is not used on a regular basis; do not try and force the tap.

 

How Much Does A Filling Loop Cost?

In 2014 a good quality filling loop cost about £12.

 

 

Judge Electrical Limited
15 Mulberry Court, Huntington, York, YO32 9TU
Telephone 01904 764845 (Landline), 07919 033113 Mobile)
Email info@judgeelectrical.co.uk
VAT No. 852917405. Company Number 6359328