Our boiler is 20 years old, is it worth replacing to save energy?
Yes. Old boilers are likely to be between 60 and 70 per cent efficient, whereas a modern condensing boiler can achieve efficiencies of over 90 per cent. They can help you save up to a third on your heating bills and even more if you upgrade to modern controls. A combi version could also reduce your hot water costs and provide you with more space as a hot water cylinder is not required.
