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One-Pipe Insulation - How thick should I go?

I am getting ready to insulate the supply lines on my one-pipe steam system. I've measured; figured out the sizes; and am ready to burn up some plastic (I mean my credit card).

I've read the Wall about thickness of insulation (there seems to be some consensus about 1:1.5 inch), but am looking for some more opinions.

I've got 105 feet of 2 and 2 1/2 inch; and 60 feet of 1 1/4, 1, 3/4.

Using model energy code I am add about 35% cost. Other than "more is better"; are there any arguments for spending the extra dough to go 2:2.5? In other words: How can I convince my husband that we should spend more money? Or shouldn't I?

Comments

  • Keith C
    Keith C Member Posts: 7


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  • Larry Weingarten
    Larry Weingarten Member Posts: 3,574
    Just a couple...

    ... of questions. How long do you expect the insulation to be in place? How much do you expect energy will cost when the insulation is half way through its expected life?

    If the insulation is sized to be cost effective at today's energy prices, it might be undersized for most of its installed life.

    Causing trouble.... my job ;~)

    Yours, Larry
  • Leah Frances
    Leah Frances Member Posts: 11
    FYI: I went with the Model Code for pipe insulation thickness

    I bit the bullet and got the 1.5 thick for my pipes 3/4 - 1 1/4 and 2.0 for the other.
  • Tom Hopkins
    Tom Hopkins Member Posts: 554
    What's the Model Code?

    ?
  • Brad White_185
    Brad White_185 Member Posts: 265
    The Model Code

    Says that Giselle Bündchen is off-limits...

    :)

    Actually the model energy codes were promulgated by ASHRAE some years ago as a framework for adoption by states and which allow local modifications.

    Our (MA) code (780 CMR Ch. 13) is founded on the model energy code but has specific requirements unique to Massachusetts for example. The insulation thickness table seems to hold fairly consistently though. I have not seen a disparity between several state's energy codes.

    Besides, Giselle is still off limits and women weaken legs. Go Tom, Go Pats!
This discussion has been closed.