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Mend Thorn 20/35B Boiler Heating Warm Water

Thorn Olmpic boiler 20/35B?

My water is only warm any ideas the flame appears ok ie blue there doe's seem to be a lot of soot on the heat exchanger ?

T Harker
December 2007
ThornThorn 20/35BHeating, Home Heating SystemsBoiler Heating Warm Water
I think you have answered your own question here - soot on the heat exchanger does prevent the water from reaching the full temperature so I think a full boiler service and clean could be a good move. However the soot build up doesn't happen overnight so the temperature reduction would have been gradual.

John
December 2007

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Thorn 20/35B Boiler - Warm Water Issues