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Aldi boiler

I've got an Aldi boiler that has a very slow water leak in the state somewhere. I will get it fixed soon! But, in the mean time, how do I top up the system? I can't see a header tank or anywhere obvious to put water and antifreeze in to it?

Asked by: Carl Young  | 1.27pm, Thursday 26 September


WW says:

Which model of Alde boiler- the tall, thin Comfort unit, or the Compact model?

Mark Langley  | 2.11PM, Thursday 26 September

The tall, thin Comfort boiler usually has a header tank installed about the boatiler heat exchanger- and the circulation pump is mounted here. Unscrewing the pump allows you to top up the system (with a 50:50 mix of antifreeze and water) and there are maximum and minimum marks on the container.
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To get to the tank, you need to move the upper cover of the boiler.
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Sometimes an addition header tank is installed, which may be a sealed unit.
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The Compact boiler must be fitted with a seperate header tank (which also facilitates bleeding of air from the system). This can be located remotely from the heating- often in a wardrobe, engine room or airing cupboard.
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Full manuals for all the Alde heating systems can be downloaded for free from http://www.alde.co.uk/manuals.php

Mark Langley  | 2.38PM, Thursday 26 September


Readers say:

Thank you. Water now topped up and all running smoothly.

Carl Young  | 5.53PM, Tuesday 1 October

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