The Horstmann 425 Diadem Central Heating Hot Water Programmer is a programmable thermostat designed for efficient control of central heating and hot water systems in homes. This model offers users the ability to set specific heating and hot water schedules to maximise energy savings and provide a comfortable living environment. With its reliable brand reputation and user-friendly programmability features, the Horstmann 425 Diadem is a popular choice for those looking to manage their heating and hot water systems effectively.
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