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Subject: If I go for a combi will it need new pipes?
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wrote:
... [airing cupboard] That houses the water tank (?),the pump
for the shower and the central heating mechanism/timer etc. The boiler
itself is downstairs in the kitchen. The gas central heating boiler is
a British Gas reg serviced conventional one and replaced by last owners
only 4 or 5 years ago. Would we be able to have the contents of the
airing cupboard put in the loft to give room for bath and leave our
current central heating system as it is

Possibly. By 'tank' I assume you mean hot water cylinder. However your
system is probably vented i.e. you will have two water tanks in the
attic (a big one for cold water to taps and a small one which is the
header tank for the primary circulation system i.e. between the boiler,
radiators, and hot water cylinder.

The HWC can go in the attic but needs to be *below* both the cold water
tanks. It might be possible to raise the cold tanks on platforms.

You might be able to lift the HWC to ceiling level on a platform in the
bathroom, if you have high enough ceilings.

The alternative is to remove the cold water tanks in the loft and
install a pressurised system or heat bank. There'll be someone
knowledgeable about them along real soon now.

- or would we need a combi?

Combis are not generally recommended for bath filling. You would need to
check you have adequate mains water pressure/flow and gas.

Owain