How do you Repressurise a boiler without a filling loop?

If you notice you don’t have a filling loop, but you do have a large metal cylinder that’s warm to the touch, this is precisely where you need to start looking. What you’re searching for is a braided hose with a small valve attached to it.

Where is the filling loop on my boiler?

An external filling loop can be located anywhere on the central heating circuit which gives it great location flexibility. In many instances the filling loop will be located on the pipework within 1 meter of the boiler.

What happens if you leave the filling loop open?

If it’s left on, you can cause irreparable damage to your filling loop boiler. They can accidentally knock the filling loop valves, which would allow water to flow back into the system, raising the boiler pressure and cause more problems.

What is an R24 filling loop?

The R24 Filling Loop comprises a DZR combined double check valve and isolating valve with flexible hose and isolating valve. * Suitable for supplying mains water to closed circuit heating systems.

Should the filling loop be open or closed?

After use the valves on the filling loop should be closed, the metal braided filling loop removed and the valves capped. The majority of people don’t do this so there is always a chance that the valves can be opened accidentally or be faulty.

Is filling loop open or closed?

A Boiler Filling Loop provides a temporary connection to the mains so that you’re able to re-pressurise and fill your heating system with water. Filling loops can come in different designs and can be detached from the boiler when not in use. With the black levers in this position the valves are OFF/CLOSED.

How does filling loop work?

The boiler filling loop is a boiler component which provides a temporary connection to the mains in order to fill and pressurise the central heating system with water. It also allows the system to be topped up where necessary, for example, after bleeding radiators.

Why does filling loop have 2 valves?

An external filling loop hose is braided with compression fittings on each end. There are also two valves: one to control the water flow (stop valve) and the other to ensure the boiler water doesn’t go back to the mains (double check valve).

What pipes does a filling loop go on?

The filling loop is installed between the mains cold water supply inlet and the central heating return pipe in the boiler and HIU.