A
audistorm
Good evening folks, We have a Ferroli Modena 80e boiler in our house and I am looking for some advice and also a good ferroli engineer local to Birmingham. We have been in the house for 5 years and initially we would get a reasonable supply of DHW, the CH works absolutely fine by the way, The DHW in the summer is ok (when the CH is off) but to fill the bath you need to run the hot tap on very slow demand to allow the boiler to heat the water to a hot temperature. In the winter to run the bath to obtain hot water and not luke warm you have to run the hot tap slowly or if you have a shower you need to run the cold tap in the nearby sink to reduce the flow again to obtain a hot temperature, the shower is a thermostatic shower. I have had some engineers out in the past (BG and a ferroli engineer recommended by the BG man) but they just changed the two thermistor sensors , this hasn't fixed this fault. We have just put up with it over the last two years as it only really is affected in the winter with the colder input water supply but the cost of gas is forcing me to get this problem fixed. I think it may be one of two problems, one the DHW heat exchanger is not working efficiently (Bham being a hard water area I wonder if it is full of scale, or could it be the DHW flow valve sensor valve. I would love to replace the boiler but cannot afford to do that hence I would love to find an engineer who is good with these boilers, I know these are old boilers and hence limited to technical expertise. Please share any help or advice please. Hot water pressure is not as strong as the cold fdor obvious reasons but it is quite good, just luke warm even with the hot water burner control on full.
