How much can be saved with condensing boilers?

The answer to this question depends on many factors that vary greatly with the situation. These factors range, for example, from the local climate to the thermal insulation, and from the number of hours the system operates per day to the size of the radiators in the system. However, to give a practical example of the savings that can be achieved, we can say that an average Italian family living in a city like Bologna or Florence can save up to 35 per cent of their consumption by replacing the boiler with a condensing boiler.