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Boiler not heating as well as before

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denvergiant
denvergiant Member Posts: 2
in THE MAIN WALL
We have a Burnham 3 zone boiler.

It's not warming the house as well as it used to. We can't seem to get the house warmer than 65 degrees.

When I rest a meat thermometer on 1 of the pipes, it will only read 125 degrees.

The dial inside of the boiler cover is reading 140°

What do I need to do?

Comments

  • denvergiant
    denvergiant Member Posts: 2
    This is a radiant heating system (in case that was unclear )
    Thx
  • nicholas bonham-carter
    nicholas bonham-carter Member Posts: 8,578
    Are there good batteries in the thermostat?
    Can you short out the thermostat to simulate a call for heat?
    Is this condition a sudden development, or has it been gradually getting worse?--NBC

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