Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Mixing Valve on Radiant Heat

Sheryl
Sheryl Member Posts: 3
in THE MAIN WALL
I just finished adding a 18 x 20 family rm. with cathedral ceilings on my home. I did a radiant heat system, seperate zone on my existing 86,000 Wells Mclain system. I was told before I began the project, that I will be at the maximum capacity on my heating system when I do this. I was also told that going with radiant versus base board I would use less BTU's going radiant. I had only put in my heating system six years ago and I'm trying to avoid going for another system. After the completion of the project, and given the last couple of weeks of unusual cold weather, I wasn't getting past 60 degrees in the room. The plumber removed the mixing valve on the radiant. Since than the floor is heating up great. Will I have any problems with the plastic radiant piping without the mixing valve? What's the maximum temperature allowed on the system?
Thank you for your assistance.

Comments

  • don_67
    don_67 Member Posts: 2
    Are your

    > I just finished adding a 18 x 20 family rm. with

    > cathedral ceilings on my home. I did a radiant

    > heat system, seperate zone on my existing 86,000

    > Wells Mclain system. I was told before I began

    > the project, that I will be at the maximum

    > capacity on my heating system when I do this. I

    > was also told that going with radiant versus base

    > board I would use less BTU's going radiant. I

    > had only put in my heating system six years ago

    > and I'm trying to avoid going for another system.

    > After the completion of the project, and given

    > the last couple of weeks of unusual cold weather,

    > I wasn't getting past 60 degrees in the room.

    > The plumber removed the mixing valve on the

    > radiant. Since than the floor is heating up

    > great. Will I have any problems with the plastic

    > radiant piping without the mixing valve? What's

    > the maximum temperature allowed on the

    > system? Thank you for your assistance.



  • don_67
    don_67 Member Posts: 2
    No mixing valve..

    it depends on floor covering as to what your your floor surface should be.
    I know they claim that 180 intermitted is ok for pex and 200
    degree continous.
    But that also depends on how the tubing was installed,if its a stapleup system I bet most of your tubing will be hanging like a limp noodle.

    I think even with the boiler being under size,I would have gone for some type of supplement heat,rather then pass the design that was in place originally.



This discussion has been closed.

Categories