We've just moved into a house and they've not left the full instructions for the boiler controls. I've figured out how to set the programs but there are 4 settings on the control for both CH and HW. These are Off, On, Once and Twice. I've worked out the first two :-) but the "Once" and "Twice" have me stumped. When selected both seem to kick the HW on, but after that?
- posted
14 years ago