Can one temporarily short out, with a pipe, the central heating circuit of
a combination boiler, so that I can get the DHW working first, and do the
central heating later? Clearly in summer the hot water will work OK with
the central heating not working.

The cylinder has to go first before I can fit the combination boiler, can
be fitted.

--
Dave Fawthrop dave hyphenologist co uk
"Intelligent Design?" my knees say *not*.
"Intelligent Design?" my back says *not*.