I have a problem with my 8 month old Ferroli boiler which their engineer is claiming is not down to a fault in the boiler so in effect they have walked away. Briefly when the heating system is first put on I would expect the burner to be on max. There is a visual display which goes up to 5 indicator bars. What happens is that it rises to no more than 3 bars and then drops down to 1, it can then fluctuate between 3 & 1. I think that if the system is coming on from cold then surely all the burners will ramp up to max and stay there until the whole system reaches the required temperature. Because the burners are dropping from say 3 to 1 the system does eventually heat up but it can take one and a half hours before the house is warm. Once the system is at temperature, all is well and the boiler performs as expected. I think there's something wrong with the boiler but Ferroli do not agree and have said that should I call them out again as the boiler is under warranty, then I will be charged. The fact that the system works once its at the required temperature would indicate that there is not a circulation problem. I would be grateful for any advice as Ferroli consider the boiler to fit & well.