On Saturday, 27 March 2021 at 21:18:05 UTC, Chris Green wrote:
Tim+ wrote:

To complicate matters theres another soldered fitting just over an inch
away that I really dont want to disturb (so may end up packing it in ice).

It seems to me that that chances of unsoldering one joint an inch away
from another connected by 22mm copper pipe are very slight! Either
you won't unsolder one or you will unsolder both. Copper is a very
good conductor of heat.

--
Chris Green
·
+1