CALL A HEATING ENGINEER ASAP. PROBLEMS WITH BOILERS SHOULD BE LOOKED AT. BETTER SAFE THAN SORRY.
PS SOUNDS LIKE YOU COULD HAVE A BLOCKAGE IN YOUR CONDENSING PIPE.
DEAR STEVE
BOTH FITTINGS CAN BE MIXED. IE JG WHITE BARRIER PIPE CAN BE USED WITH GREY FITTING VICE VERSA. ALSO SPEEDFIT CAN BE USED WITH COPPER IF THATS ANYMORE HELP.
:D
