Yep. You're right.
Only Flowsure/Flowsure+
Says this about the regular and system...
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Statesman, Statesman System
System & Boiler Control
Due to the high efficiency of the Statesman boilers, the following should be taken into consideration during installation:-
Control of the Boiler: When the demand for heating and/or hot water is satisfied, the controls should be arranged such that the burner is switched off. If due to the system design nuisance tripping of the overheat thermostat occurs, it may be advisable to fit a pump overrun device (Incorporating a by-pass system where necessary).
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I stand corrected.
