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Just had secondary heat exchanger replaced on ultracom2 30cxi fitted with magnaclean2. I guess my rads held on to some sludge after the powerflush we gave it when installing the new boiler and gradually dumped it into the heat exchanger. Is there any additional filter i can add? I kept some of...

Hi everyone, I'm after some advice please putting a new boiler in to replace worcester 9.24. Have decided on glowworm ultracom2. Have a bungalow with 9 rads, 1 bathroom. Q: Should I get 24 or 30 boiler? I guess its only for the rads as probably same heat exchanger for hot water. Any...

hi, new to this forum. worcester 9.24BF CH works fine, but hot water goes cold when run at 9 l/min, but stays hot when run at 4/5 l/min anything in between comes and goes. Have tried new DHW sensor - no change. I really thought that was it! Doesnt look like divert valve (2yrs old)...