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Pex Expansion Concern

Post in 'The Boiler Room - Wood Boilers and Furnaces' started by McKraut, Apr 5, 2012.

  1. nate379

    nate379 Guest

    The rule of thumb I've been told is expansion/contraction of one inch every 100 feet of pipe for each 10° of temperature change.

    60*-190* would be 130* change, or about 13" in 100 ft..

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  2. McKraut

    McKraut Member

    Joined:
    Sep 1, 2011
    Messages:
    243
    Loc:
    South Central PA
    Nate,

    That's about what I calculated, but from most of the postings it seems that the expansion is not that significant. When I put my system together, I will put in soft bends to allow for some expansion.
  3. Tennman

    Tennman Minister of Fire

    Joined:
    Mar 4, 2009
    Messages:
    718
    Loc:
    Southern Tenn
    Late summer of 09. You're looking at all rough cut poplar exterior. Boy was it beautiful when new. But the present patina is growing on me. Only heat in the barn is from the boiler. Being southern Tennessee/northern Alabama our worst weather is probably like your normal. By the time winter hits the boilers going about all the time. I love the boiler away from the house. I typically travel little from T-day thru Feb so it's always tended. I'll try to email the ss tomorrow. Slammed at work.

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