Page 1 of 2 12 LastLast
Results 1 to 10 of 20

Thread: BRRRR! pipes froze heat tape on PEX???

  1. #1
    Join Date
    Dec 2008
    Location
    Oklahoma
    Posts
    479

    BRRRR! pipes froze heat tape on PEX???

    My water lines froze - remodel pex lines are ran up the north wall- Tried this/Tried that, I ended up cuttung a holesaw in the lower part of the wall and blowing a hairdryer in the wall.
    HELLO Northen boys-- Is there any type of heat-tape rated for PEX?? can you run it inside of a finnished wall. 100year old Wood on the exterior and drywall/plaster on the inside.??

  2. #2
    Join Date
    May 2005
    Location
    Richmond, Virginia
    Posts
    21,838
    Usually, the piping is inside the insulation envelope. You may want to re-route the piping.
    Code references based on 2005 NEC
    Larry B. Fine
    Master Electrician
    Electrical Contractor
    Richmond, VA

  3. #3
    Join Date
    Jul 2007
    Location
    Iowegia
    Posts
    16,890
    Quote Originally Posted by rt66electric View Post
    .........Is there any type of heat-tape rated for PEX?? .......

    I'm no expert, but I think any self-regulating heat tape would work. How hot do you think it gets.... 300°?

  4. #4
    Join Date
    Jun 2003
    Location
    NE (9.1 miles @5.07 Degrees from Winged Horses)
    Posts
    5,942
    Run the pipes on the inside of the room, not in the wall. Insulation keeps the heat away just as well as it it keeps the cold out.
    Tom
    TBLO

  5. #5
    Join Date
    Feb 2003
    Location
    Boston, MA
    Posts
    6,856
    Quote Originally Posted by ptonsparky View Post
    Run the pipes on the inside of the room, not in the wall .
    That sounds attractive.
    There are two kinds of people - those smart enough to know they don’t know, and those dumb enough to insist they do.-----Margery Eagan

    Open shop since 1988

  6. #6
    Join Date
    Feb 2003
    Location
    Boston, MA
    Posts
    6,856
    Quote Originally Posted by rt66electric View Post
    My water lines froze - remodel pex lines are ran up the north wall- Tried this/Tried that, I ended up cuttung a holesaw in the lower part of the wall and blowing a hairdryer in the wall.
    HELLO Northen boys-- Is there any type of heat-tape rated for PEX?? can you run it inside of a finnished wall. 100year old Wood on the exterior and drywall/plaster on the inside.??

    This may be crazy but I'll give it a go. It's called "google"


    http://www.ppfahome.org/pex/faqpex.html
    There are two kinds of people - those smart enough to know they don’t know, and those dumb enough to insist they do.-----Margery Eagan

    Open shop since 1988

  7. #7
    Join Date
    Sep 2004
    Location
    Durham, NC
    Posts
    5,284
    Nice link Scott, the last plumber I worked with swore by it, and explained that
    he's seen this expand near twice the OD and no bust. He explained about all of the following, from your link!

    Is the thermal expansion/contraction of PEX a problem?

    No. While PEX expands more than other plumbing materials, directional changes made with the tubing and some slack in the tubing during installation accommodate the expansion and contraction of the system if properly installed.

    Is PEX freeze-break resistant?

    PEX piping is freeze damage resistant and can expand and contract as water freezes and thaws within the tubing. No tubing material is freeze-break proof, however, and PEX should be installed using the same locally-prescribed insulation requirements to prevent freezing of any plumbing system.

    How do I thaw PEX lines?

    When water freezes inside PEX tubing, it can be thawed using a hair dryer, warm wet rags or heat tape, taking care not to overheat the tubing beyond the maximum recommended temperature.
    If your even thirsty, your two quarts low.

  8. #8
    Join Date
    Jun 2003
    Location
    NE (9.1 miles @5.07 Degrees from Winged Horses)
    Posts
    5,942
    Quote Originally Posted by electricmanscott View Post
    That sounds attractive.
    Looks good from here.
    Tom
    TBLO

  9. #9
    Join Date
    May 2005
    Location
    Richmond, Virginia
    Posts
    21,838
    Quote Originally Posted by ptonsparky View Post
    Looks good from here.
    Translation: "Can't see it from my house."
    Code references based on 2005 NEC
    Larry B. Fine
    Master Electrician
    Electrical Contractor
    Richmond, VA

  10. #10
    Join Date
    Jan 2008
    Location
    South Carolina
    Posts
    685
    Did they insulate your new pex? If it is in an exterior wall with not insulation directly on the pex it was not legally installed. On the bright side, if it was CPVC, copper, or galvanized, youd have busted pipes right now.

    c2500
    Never ask "What else can go wrong?"

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •