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.

Radiant floor installation

j.c.
j.c. Member Posts: 1
in THE MAIN WALL
you should know you are an engineer

Comments

  • J K STRAITIFF
    J K STRAITIFF Member Posts: 4
    OAK WOOD FLOOR

    I AM ADDING A 840 SQUARE FOOT ADDITION TO MY HOUSE AND WOULD LIKE TO USE RADIANT FLOOR HEATING. THE FLOOR WILL BE CONSTRUCTED OVER AN UNHEATED CRAWL SPACE. THE DETAIL OF THE FLOOR IS 1/2 PLYWOOD ON JOIST, 3/4 SLEEPERS, TUBING AND DOULBLE BUBBLE IN SLEEPER SPACE, 3/4 SUBLOOR, 3/4 OAK T&G. I WOULD LIKE TO KNOW TUBING SPACING, OPTIMUM WATER TEMP., AND HOW MANY BTUS PER SQUARE FOOT I CAN EXPECT TO BE TRANSMITTED THROUGHT THE SUBFLOOR AND OAK FLOOR?
  • ALH_4
    ALH_4 Member Posts: 1,790
    Plates

    I would recommend looking into under-floor extruded heat transfer plates. Installation is a lot simpler, and you can buy better insulation with the money you save by eliminating two layers of plywood. Water temperatures vary depending on a lot of variables in the structure and the control strategy, but I have seen extruded plate systems heat well-insulated homes to 68F with sub-100F fluid temperatures at outdoor temperatures of 20F below zero. What is your heat source?

    -Andrew

  • Kevin O. Pulver
    Kevin O. Pulver Member Posts: 380
    I t depends...

    The first thing you need to know is the heat loss of your structure. How much heat will it be losing at design temps?
    You need someone to figure that out first and THEN you can start designing towards that. OR you can do like many people, take a wild guess... and hope. There may be a contractor in your area that can help if you click the find a contractor feature. Kevin
This discussion has been closed.

Categories