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  1. W

    Furthest radiators not getting hot

    Thanks again. The pump itself is 10 years old (photo attached). Would it make sense to replace the pump with the same model?
  2. W

    Furthest radiators not getting hot

    Thanks. I will try that. One thing I have noticed is that from the 2 pipes (which I assume are the flow & return pipes) that come down from a bedroom into the lounge (these 2 pipes feed the three furthest radiators), one of these pipes is hot but the other is luke warm. Does that signify...
  3. W

    Furthest radiators not getting hot

    Thanks. Would you definitely say the pump is on its way out? I would hate the change the pump and then find the problem still exists.
  4. W

    Furthest radiators not getting hot

    I have a 12-year Vaillant ecoTEC Plus 438 condensing boiler that is used to heat up 19 radiators. When the heating is turned on at the start of the morning, all radiators become hot with the 3 furthest radiators from the boiler being last to heat up. Once the set temperature on the room...
  5. W

    Grundfos Alpha 15-60 Pump

    I have a Grundfos Alpha 15-60 pump that is making a wierd sound and in need for a replacement. I plumber has suggested replacing this pump with a standard Grundfos UPS 15-60 pump which is cheaper than the Alpha pump. Is there any reason why I should not replace my Alpha pump with the standard...
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