If you have a combi boiler, you will be able to adjust the temperature for both your heating and hot water. In this instance, you will need to adjust the setting for heating (which normally appears under a radiator symbol). Unfortunately, when most combi boilers are installed, their flow ...
He found that electric kettles are by far the most efficient, although if you adjust for the fact that power plants produce electricity in wasteful ways, they're rather less impressive. (So, for example, if you're interested in cutting carbon dioxide emissions, you do need to consider how ...