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Double Wall HX Code Requirement

Tony Conner
Tony Conner Member Posts: 549
in THE MAIN WALL
Within the last month or two, I read an article, somewhere, that talked about relaxing the requirement for double wall HXs for domestic hot water heating, if the heating medium wasn't toxic. It said the existing double wall requirements stemmed from the "days of solar" (20 or 25 years ago) and folks were using all kinds of potentially nasty (toxic - like ethylene glycol) heat transfer fluids.

I usually print online articles or cut them out of tade mags if they interest me, but I didn't do it with this one. Does anybody have any idea where I might have seen this, or maybe even have a copy they could post?

Comments

  • Weezbo
    Weezbo Member Posts: 6,232
    i remember hearing that also.....

    Maybe in some Renai lit ?
  • Ed_26
    Ed_26 Member Posts: 284
    dbl hex

    plumbing & hvac mag? will check & get back.
  • Ed_26
    Ed_26 Member Posts: 284
    dbl hx

    Yup - www.plumbingandhvac.ca - the new hydronics, vol. 4, issue 2, by roy collver. also a letter regarding bubble foil issue.Interesting!
  • Tony Conner
    Tony Conner Member Posts: 549
    It Wasn't...

    ...in the little pull-out thingy, was it? I can find the main part of the magazine, but not that section.

    I really appreciate your help - thanks!
  • Ed_26
    Ed_26 Member Posts: 284
    dbl hx

    yup - the "pull-out thingy". couldn't find it on the main site. will keep trying. you could try e-mail to:
    royc@ms-2000.com - to contact roy collver.
This discussion has been closed.

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