Hello,
I want to add an external expansion vessel to my combi boiler as I
think the built-in one has failed. The built-in one is fed off a
15mm port on the DHW exchanger. I think it will be difficult to
run 15mm copper to this, so could I use a short length of 10mm or
will the reduced diameter cause problems?
Thanks in advance!
--
----Android NewsGroup Reader----
https://piaohong.s3-us-west-2.amazon...net/index.html