Results 1 to 6 of 6

Thread: PEX Tubing & Radiant Heat

  1. #1
    Join Date
    Oct 2003
    Location
    Vermont
    Posts
    777

    PEX Tubing & Radiant Heat

    Just curious as to who has experience with Radiant or Hydronic Heating systems and in particular has worked with PEX tubing.

    My system is made by Buderus and I am installing the radiators myself and any advice, tips, warnings, etc would be much appreciated.

    I will be using 3/4" OD (5/8" ID) PEX tubing with oxygen barier. I will be using barbs on the copper tubing side and compression fittings into the diverter valves installed in the radiators.

    Thanks!
    Wood is Good!
    Greetings from The Green Mountain State!

    Kurt

  2. #2
    Join Date
    Dec 2003
    Location
    SF Bay Area, CA
    Posts
    15,332
    Kurt,

    No personal experience with it but I've read a lot about it and everyone seems to love it.
    Wood: a fickle medium....

    Did you know SMC is user supported? Please help.

  3. #3
    Join Date
    Jun 2003
    Location
    Portsmouth, VA
    Posts
    1,218
    Curt, haven't worked with myself either, but have been in several houses with it installed. Very comfortable, even heat. It's the way I plan on heating my ultimate retirement house. From those I've talked to that installed it, they found it very DIY'er friendly for new construction, and a little difficult, but managable for retro fit.

    For the fittings did you get the drill powered expander? Makes short work of it.

    Be well,

    Doc

  4. #4
    Join Date
    Oct 2003
    Location
    Vermont
    Posts
    777
    Chris,

    Thanks, that's the general concensus around here too, in fact the local plumbing supply house here says that it has become more popular than copper or PVC. I had the local furnace guys install the radiators in my kitchen, but as I rennovate each room, I am doing the work myself and am presently taking a crash course in this stuff. I can't let the heat go too long without being on as we've already had 4 or 5 frosts and 2 of those were hard (No Pressure here!)
    Wood is Good!
    Greetings from The Green Mountain State!

    Kurt

  5. #5
    Join Date
    Oct 2003
    Location
    Vermont
    Posts
    777
    Doc,

    I got the compound crimp kit that Watts has. For some reason their 3/4" crimper is $210.00 and the kit that can handle 3/8", 1/2", 5/8" & 3/4" with changeable mandrels cost me $204.00 and came with the Go/No-Go gage that didn't come with just the crimper alone. I don't understand their marketing.

    The radiators are definitely the way to go for retrofit as they just mount to the wall and come in numerous sizes. Buderus has a thermostatic head you can put onto each unit and they will try to only heat up to a certain setting and if it does not require any heat, will by-pass that radiator. My kitchen used to be the coldest room in the house, now it is by far the warmest and most stable in the house.

    New contstruction would definitely be under the floor. My dad did that for his garage addition and it works great. I am just nervous about the fittings, I guess. I have sweat copper joint for about 20 years and have No experience with the fittings for PEX and I guess just need reassuring that I am capable of doing it correctly.

    Thanks for the encouragement.
    Wood is Good!
    Greetings from The Green Mountain State!

    Kurt

  6. #6
    Join Date
    Jun 2003
    Location
    Portsmouth, VA
    Posts
    1,218
    Kurt, not only from those experiences with friends (who had no prior experience) and from what I've seen and heard at shows/television/etc, this really is a user friendly system and has been in use for a long time with very little cases of leaks or problems. That expansion mandrel is the absolute key. One of the installation I saw didn't even had the tubing crimped - just expanded-press fit on. Had been that way for almost 10 years without a leak. Go for it and best of luck. Let us know how it turns out.

    Be well,

    Doc

Similar Threads

  1. Questions on Heat Treating O2 Steel
    By Tom LaRussa in forum Neanderthal Haven
    Replies: 11
    Last Post: 10-14-2004, 7:00 PM
  2. Experiences with propane heat?
    By Stefan Antwarg in forum Off Topic Forum
    Replies: 7
    Last Post: 06-23-2004, 9:51 AM
  3. Copper tubing & air lines
    By Bruce Page in forum General Woodworking and Power Tools
    Replies: 13
    Last Post: 04-13-2004, 2:46 PM
  4. Heating the new shop
    By Bobby Hatfield in forum Off Topic Forum
    Replies: 23
    Last Post: 01-30-2004, 9:38 PM
  5. Need advice - I might get to build a new shop!
    By Matt Meiser in forum General Woodworking and Power Tools
    Replies: 24
    Last Post: 08-13-2003, 10:08 AM

Posting Permissions

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