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Ferrolli MODENA, 30C, HW flow rate poor.

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Ted808

Ted808

Plumbers Arms member
Plumber
Gas Engineer
Messages
359
Oldish combi, servicing minimum, HW flow rate has decreased, check filter on incomin cold, not much in there, a tiny spec of dirt. I'm thinking heat exchanger scaled up. So, custard wants new boiler for peace of mind. What can I do to ensure that new boiler doesn't have the same issue? Flow rate at incoming mains is good, pressure ok. Or am I just being paranoid?
 

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