Floor Heating Physics

Floor Heating Physics

It is extremely important where tubing is placed for best heat transfer.

Tubing must be placed in the upper 1/3 of the concrete slab. This will provide good heat transfer and even distribution across the floor.

Place tubing at 2'' slab thickness for minimum heat gradient and space the tubing at a distance to meet your BTU requirement.

4'' Slab - 5/8'' Tubing OD - Floor Heat Transfer Test - Fluid 110° F
Test #1

1'' Down 2'' Down 3'' Down	1'' down shows best heat transfer The heat transfer upward is maximized and the heat transfer downward is minimized.
Test #2

10'' 8'' 6'' Center to Center Spacing	At 8'' spacing a even heat pattern is achieved.

6'' Slab - 7/8'' Tubing OD - Floor Heat Transfer Test - Fluid 110° F
Test #1

10'' 8'' 6'' Center to Center Spacing	At 8'' spacing a even heat pattern is achieved.

Test #2

2'' Down 3'' Down 4'' Down	2'' down shows best heat transfer The heat transfer upward is maximized and the heat transfer downward is minimized.

Last modified: 09/05/2008