I will be looking for wall hung, condensing, good efficiency. Not Combi,
for a 4 bedroom house. vented fully pumped system.

.....are you a member of the flat earth society as well?

Dr Drivel
Can i ask what makes you say that? Are you saying you would rather have a
Combi?
I will consider all options. (but not warm air, however good they are
now).
What are the advantages of a Combi? I guess space as a hot water tank is
not
required, but what are the others?
Regards, Will

It's probably time you had a look at the boiler choice FAQ and the heating
section of the main FAQ.


--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at http://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
Choosing a Boiler FAQ http://www.makewrite.demon.co.uk/BoilerChoice.html
Gas Fitting Standards Docs he
http://www.makewrite.demon.co.uk/GasFittingStandards

Thanks for all your reply's. All are very interesting. I can see basically
what the differences & pro's & cons are now of the different system types.
In a nutshell " You have give me all the clues"
Thanks all.
Regards, Will