Mike Mitchell wrote in message . ..
On Fri, 3 Sep 2004 23:28:50 +0100, chris French
wrote:

In message , Set Square
writes

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

Space was the short answer for us.

We replaced our boiler/HW tank system (the boiler was old and getting
knackered) with a combi.

We had a small bathroom , by getting rid of the tank and airing cupboard
we were able to put in decent separate shower, and rearrange things to
make a much better room. One advantage of the combi of course is we get
a good shower as well with no pumps etc.

Yes, I miss the airing cupboard at times, but I don't really miss the HW
tank that much. We are mostly shower people, and don't run baths very
often so the slow flow rate of the combi isn't to much of an issue - the
mains pressure HW is benefit. Multiple draw offs aren't a problem for
us.

Okay, it's time for a complete CH novice to butt in here and ask a few
questions, as gas heating boilers may well be of interest to me soon.

What is a combi boiler and how does it differ from a conventional
boiler?

I have an airing cupboard, a hot water tank and my boiler has a pump.
How/why does the combi boiler get rid of both the latter?

What are the fundamental differences in two properties' heating
systems, one with a conventional boiler, and the other with a combi
boiler?

IMM did an excellent post on the differnt types of combi's. Do a
Google. I did a Google on Alpha CB50 and it came up. Read this first
before you go any futher.