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Radiator Flow + Return Temperatures

  • 11-11-2013 4:07pm
    #1
    heavydawson
    Registered Users, Registered Users 2 Posts: 1,167 ✭✭✭


    Hey all,
    New build just complete here with Oil Fired Condensing Boiler + Radiators.
    Radiators are coming on but the flow never seems to go above 50 degrees celcius where the all the literature I've read (including the boiler manual) seems to suggest the radiators should be reaching 70 on the flow and 50 on the return.

    Just wondering if I'm reasonable to expect this? A 20 degree difference between measure vs. recommended seems a lot!

    I'm measuring the temperature at both ends of the rad with a laser thermometer.


Comments

  • #2
    ptogher14
    Registered Users, Registered Users 2 Posts: 203 ✭✭ptogher14


    Have you the stat on the burner turned up?

    I was using a laser myself a while ago and found the laser could be off by ten degrees. Depending on the surface.


  • #3
    heavydawson
    Registered Users, Registered Users 2 Posts: 1,167 ✭✭✭heavydawson


    ptogher14 wrote: »
    Have you the stat on the burner turned up?

    I was using a laser myself a while ago and found the laser could be off by ten degrees. Depending on the surface.

    I haven't turned up the stat on the burner just yet. I wanted to make sure I was measuring the right way. Is there any reliable way to measure the flow temperature? I've seen some wire-based thermometers you wrap around the flow, but wasn't sure if they're any better than the laser.


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