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.

New room radiant heat

 Adding a room 20x12  in floor radiant being added to a hw baseboard

system  if i branch off boiler outlet at 180 i know i need a mixer to lower

temp but for the room loop do i use valves or loop pumps to

add to existing system(one floor home.) if pumps what size?



                                                Tom1

Comments

  • CMadatMe
    CMadatMe Member Posts: 3,086
    You Need

    a  system pump after the mixing vlave for the radiant. What size. Generally a Taco 007 or Grundfos 15-58 but pump sizing is dependent on heat loss, flow rates and head of the system. Without knowing these parameters, your rolling the dice.

    There was an error rendering this rich post.

  • Russty
    Russty Member Posts: 2
    System Design

    Hi,

    I'm building a 30'x44' two-story addition to my home. The subfloor is already in, and I want to install hardwood on the second floor. I want to heat the second floor via Radient heat tubing added to the bottom of the subfloor.

    1. Where can I go to get a proper system design?

    2. Is it prudent to locate the boiler in the first floor (garage)?

    3. I live in NH, have natural gas, and need to heat my domestic water too. Should I use a boiler, a water heater or an on-demand unit?

    4. Will enough heat transfer through the subfloor and hardwood without having to raise the water temp high enough to cup the hardwood?

    Thanks!
This discussion has been closed.