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Very hot circulating pump

Discussion in 'Plumbing and Central Heating' started by yogithediyer, 8 Dec 2010.

  1. yogithediyer

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    Our heating is working fine, boiler fires pump, rads get hot, but the circulating pump is very hot to the touch. Pipes either side are also very hot. Bled rads, circulating pump and valve next to hot water cyclinder but only a little air and then black water. Any ideas why its so hot?
     
  2. boabcelt

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    Your heating is on? :LOL:
     
  3. gordongas

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    the water in the system is around 75 deg so it is going to be hot
     
  4. yogithediyer

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    yes its on
     
  5. yogithediyer

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    Should it be too hot to touch?
     
  6. seco services

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    useally yes
     
  7. yogithediyer

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    Thanks. I'm clearly make a deal out of nothing. Just seemed odd.
     
  8. Burnerman

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    If your rads are nice and cosy too, then just kneel and give thanks.....especially if you have a condensing boiler!
    John :)
     
  9. John506

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    Little concerned about the part were you said black water comes out.

    Your CH water shouldn't be black, and will not last very long if left this way.
     
  10. andrekhoury

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    since its a closed system the circulating pump should be connected to the return pipe of the boiler meaning boiler temp is 80 c goes to radiators and hot water tank then circulating pump then boiler again usually the return line is 10 or 15 degrees less then ur supply temperature due to heat exchange the pump should be hot but u can touch it , if ur circulating pup is on the return line of the boiler make sure the pump circulating speed is slow this way ur efficiency goes higher and return pipe become less hot meaning ur pump is less hot
     
  11. 45yearsagasman

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    What reasons do you give for all that drivel. :eek:
     
  12. andrekhoury

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    well i guess u dont want to learn how to adjust ur hot water system :p i guess i gave u lots of info usually u take this in mechanical engineering but since u did not understand anything why bother happy winter:)
     
  13. Blooflame

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    BRILLIANT!!!LOL!!
     

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