cold at bottom

  1. W

    Need help with Radiators cold at Bottom - not sludge

    Hi All Firstly a bit of background. We have an Intergas 28/24 boiler, factory settings bar the min rpm set to 25 not 30. We have just had an extension and we have added in new radiators across the house. We have gone from a 3 bed 1 bathroom to 4/5 bed (if you include the garage now an office)...
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