Article reference KA-02544
Yes, if your storage heater is set to comfort on during the charge times it will still output heat, as the heater will compensate for this.
Applicable Models:
Quantum Range - QM070, QM070RF, QM100, QM100RF, QM125, QM125RF, QM150, QM150RF
XLE Range - XLE050, XLE070, XLE100, XLE125, XLE150