"kiich" wrote:

i'm a bit confused now - i thought the water in the cylinder gets used
for central heating (by circulating ho****er from the cylinder to the
radiators) ?

i thought the water in the cylinder was ONLY for central heating? and
the ho****er for taps in kitchen etc gets hot by the boiler which is
heating up waters from main or tank in atic?

Opposite way round! The water in the cylinder is ONLY for hot
water directly to your taps.

riccip