On Fri, 03 Sep 2004 21:13:00 +0100, Set Square wrote:

In an earlier contribution to this discussion,
Jentrev96 wrote:

i would like to replace my conventional boiler with a combination
boiler has anyone got inst instructions ?please

Others have already commented on competence issues related to gas fitting -
so I won't repeat all that.

However, I'm faced with the question "Why would anyone conceivably *want* to
replace a conventional boiler with a combi?"

Are you *sure* you want to do this, and have considered all the
implications?


To parody Fowler on the subject of split infinitives:

The combi questioner can be divided in several groups.

Firstly, those who neither know nor care.
These are the happiest of all especially if someone else pays the bills.

Secondly, those who don't know and do care.
They post to uk.d-i-y.

Thirdly, those who know and always approve.
We all know who he is.

Fourthly those who know and always condemn.
To those of you who are in this group I beg you to read on. I suspect
that this group is larger than it might otherwise be on account of two
factors. Firstly there are a proportion of professional installers who for
their own reasons prefer to always fit a combi regardless of the needs of
the customer. Secondly those in the third group whose style of advocacy could be
described as abrasive.


Fifthly those who know and discrimate.
There are quite a number of criteria which have to be considered.
User's infomred preferences.
User's previous experience.
User's prejudice.
Size of dwelling: Space v. cylinder benfits.
User's HW usage patterns.
Instant Availability v. Storage heat losses.
Number and size of simultaneous or back-to-back HW demands
(Showers v. baths.)
Quality of mains supply.
Pre-Existing arrangements and cost implications.
...



--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html