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.

Add radiator to hydronic system

Where can I find out what safety valves, gauges, etc (if any) I should use on a radiator circuit I want to add to my planned (not yet built) hydronic system?

The heat source will be a wood stove with copper tubing as a heat exchanger, so I know that will be less predictable than a boiler. The hydronic part is designed by the good folks at Radiant Floor Co. so I know what mixing valves and temperature/pressure gauges I need there.

Should I install a cutoff valve before or after each radiator, and do I need a safety valve before or after? I can't find information on this anywhere else.

Dan Farnsworth


  • Al Letellier
    Al Letellier Member Posts: 781
    wood stove????

    Dan, I think you're looking for trouble if your description is accurate. Using a wood stove and a copper coil can lead to big trouble. The wood stove is going to be a constant source of heat and will be quite difficult to control. If you're not heating a large volume of water, I would consider another source of heat. We've seen a lot of this "jury rigged" setup here in Maine over the years and it usually leads to ruptured coils, failed safety valves and floods from them, and a lack of any control. You simply can't turn off the heat when the system reaches high temp.
    Please think this one over very carefully before proceeding.

    To Learn More About This Contractor, Click Here to Visit Their Ad in "Find A Contractor"
  • Tom Meyer
    Tom Meyer Member Posts: 300
    Have a professional help you.

    Since it's not built yet, you still can have a certified, competent, and experienced hydronics contractor help you come up the most efficient, safe and well-designed system.

    You'll save yourself alot of needless grief and expense.

    Senior Designer/Trainer
    Precision Hydronics
This discussion has been closed.