Thanks for all the replies on this matter. I am still speaking to the Office
of the Deputy Prime Minister on this matter. But I Think it will be a wait
before any changes are introduced.

Some points to clear up .

* My boiler is being installed by a Corgi engineer. Of 3 quotes, only one
said about the cast iron stack pipe, I then started to investigate -what a
can of worms.

* I am on the top floor of a three story flat - no loft space available - no
plastic drainers - no option to build any (well certainly not within my
budget I do not fancy scaffolding the whole block and getting the paperwork
for that etc.)

So really the communal cast iron waste pipe used by all flats but with me on
top is the only option for it to go.

Maybe I just install a non-condensing and say what the hell. Really not sure
what to do.

Dave

"Aidan" wrote in message
oups.com...

Dave Smithz wrote:

However, I need a boiler ASAP / next week! Any advice on what I should
do?

Interesting. Thanks for the feed-back.

Options are;

1) Gravity drain in a new plastic pipe. I'd have thought going into the
CI stack below other wastes would dilute it sufficiently, but I haven't
looked at what the BS says.

2) Neutralise it at source, see the Viessmann link on the previous
post, then put the pH neutral condensate into the CI stack.

3) Get a condensate pump and pump it somewhere (through a loft, could
freeze? ) where you can install a plastic drain, or where there already
is one.

4) Get one of the other Corgis to fit a condenser; they will certify it
and they don't see any problems. They're the approved & certified
experts and who are we mere mortals to argue with them? Solve your
condensate disposal problem at a later date.

That's it, I think. Any other possibilities?