Worcester Greenstar Heatslave II Combi Oil Boiler Hot Water Timer

JJJ111

We've just moved into a house with a new boiler. It has separate timer controls for heating and hot water and I don't understand why there's a timer for the hot water. I thought the point of a combi is that hot water is heated instantly when required.

Can anyone clarify?

Thanks

Reed_Richards

I don't think there is any such boiler.  Could it be a "Greenstar Heatslave"

JJJ111

Reed_Richards said:

I don't think there is any such boiler.  Could it be a "Greenstar Heatslave"

You're right, thanks. I've edited the subject

Reed_Richards

Section 3.2.5 here tells you why there is a timer and the recommended settings:
https://www.worcester-bosch.co.uk/support/literature/download/release/6720813721/12622

If you don't want to read the file, it has a hot water storage tank and you can use the timer to turn off reheating the tank.  The recommendation is that you do that at night but turn it on again early enough in the morning that the tank is reheated by the time you want hot water.

JJJ111

Thanks, much appreciated