In message , Nick Holmes
writes
bof wrote:
In message , Nick Holmes
writes
bof wrote:
Re combi in the basement
I have one here, the condensate goes via gravity into a small tank
and is periodically pumped out by a small electric motor, the
unit's something like 8"x8"x4". The condesate is pumped through a
narrow bore, (about 1/2" ext dia) flexible tube under the
floorboards and out through the wall into an external drain. I was
a bit dubious before installation but it's been working well for




Thanks for this. What about the pressure relief discharge pipe though?
There's a 15mm copper pipe goes out next to the flue, whether this
is for pressure relief or no I don't know



It sounds as though it might be - does how does the pipe terminate?

Doesn't the pressure relief discharge pipe have to be terminated so
that there is no risk of it spewing hot pressurised water onto anyone
and doesn't it need to run downwards from the pressure release valve
(unless through a trap and pump)?

This runs down from the boiler then up 3' and out through the wall
terminating in an elbow about 6" above, and pointing at, the ground



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bof at bof dot me dot uk