Thanks for confirming that a standby power supply would be needed. The specific situation of concern is not for copious qualtities of hot water but a few litres for essential cleaning purposes.
Having two cylinder thermostats helps there. The upper one controls heating the cylinder when normality is expected. When abnormality is possible then the control is switched ( manually ) to the lower thermostat.
Family rows also occur with a combi when one is in the shower and another wants to get the washing up done.
usually when events lead to abnormal usage and the family rows then start!
Having two cylinder thermostats helps there. The upper one controls heating the cylinder when normality is expected. When abnormality is possible then the control is switched ( manually ) to the lower thermostat.
Family rows also occur with a combi when one is in the shower and another wants to get the washing up done.