Replacing the out of date time clock technology with HeatingSave is a vote winner — the internal computer constantly calculates and improves the efficiency of your central heating system and saves 25%+ off bills. Traditional time clocks set the heating to come on at a particular time. Most are a 24 hour clock and cannot vary the times throughout the week, wasting fuel at weekends. Even a 7-day clock cannot cater for holidays or periods when the building is empty. With HeatingSave you can change a room temperature requirement over 1,000 times a day, giving you 100 per cent control of the heating you require for your needs in summer, winter or throughout the year.