Stanley Programmer Timer Twin St9400C1018 G00026Bxx

Replaces ST6400C1029

A device used in Stanley heating systems, particularly in oil-fired cookers or boilers.  The programmer timer helps regulate heating schedules, providing better energy efficiency and comfort by ensuring that the heating system operates when needed and conserves energy when not required.

• The Honeywell ST9400C provides timing control for both your central heating and hot water systems, letting you set ON and OFF periods to suit your own lifestyle.
• The programmer does not directly control the temperature but works together with other temperature controls, such as room thermostats and cylinder thermostats, to control your heating and hot water system in your home.
• With 7-day programming and up to 3 on/off periods per day, every day can be set.