"harry" wrote in message
...
On Tuesday, 30 April 2019 22:18:30 UTC+1, Fredxx wrote:
On 30/04/2019 22:02, ss wrote:
I am refurbishing the bathroom but getting a plumber to disconnect
water
, I will then tile walls & floor remove sanitry ware and replace.
plumber has said that the only thing the loft water tank is feeding is
the cold water for the bathroom sink as I have a combi boiler (mains
feed)
So, he is going to bypass the loft water tank and make it obsolete.
Does this sound the correct thing to do?

It is normal for mains to feed a wash basin.

The removal of the tank and its supply can only make your system more
reliable.

Combi boilers are more efficient in energy use
than the traditional system of stored hot water.

Only in theory. In practice stored hot water is now
so cheap to insulate very effectively that there isnt
a lot of efficiency difference anymore and stored
hot water, particularly when electrically powered
is a hell of a lot simpler and less of a maintenance
cost if you arent using the combi for house heating.

There are no other benefits.

They are more expensive to install and maintain and less reliable.

Yes.

They preclude solar hot water generation as storage is needed.
If you have an existing traditional system, probably
best retained and maintained in the longer term.

In a few years combi-boilers will be illegal and obsolete, new
legislation/technology is in the pipeline.
I expect existing installations won't be affected except maybe in respect
of spare parts availability.