I also have a dreaded Ravenheat combi condensing boiler (85T). It was the worst purchase I ever made. Unfortunately my trusty Vaillant broke down after 15 years and we needed a new boiler quickly. At the time they were being sold at B&Q for much less than others and seemed a good deal. The saying "you get what you pay for" must have been made for Ravenheat boilers. This bane of my life has broken down numerous times in the three years I have had it and now it keeps cutting out and the red overheat light keeps coming on. I can usually restart it and it might keep going for half an hour and then it cuts out again. The causes might be numerous. Dodgy sensor, sticky valve, fan cutting out, PCB board etc., Who knows? Corgi engineers don't seem to. Whatever you do, do not throw your money away on Ravenheat. You will regret it.
How helpful would this review be to a person making a buying decision? Rating guidelines
Advantages: Enables you to appreciate how people lived in the days before boilers and central heating Disadvantages: Unreliable in the true sense of the word
Advantages: I have put down as good as you allow them to be Disadvantages: You have to pay for a good installation enginner who would have flushed your system
Advantages: Enables you to appreciate how people lived in the days before boilers and central heating Disadvantages: Unreliable in the true sense of the word