Install Instructions

9 of 24 © 2015 Watts Radiant
Existing Concrete Slab (slab cap)
SlabHeat
Cable
attached to
existing slab
Existing
Concrete slab
Optional finished floor
covering should have a
maximum R value of R3.
SlabHeat Cable
should be no more
than 1-1/2" to 2"
below finished
surface with a
minimum of 3/4" of
concrete above it.
SlabHeat Cable should be 4"
to 6" from finished wall. DO
NOT INSTALL UNDER WALLS.
Finished
floor
Concrete
slab
Wall
Gravel
base
New Concrete Slab
Optional finished floor
covering should have a
maximum R value of R3.
SlabHeat Cable
should be no more
than 1-1/2" to 2"
below finished
surface with a
minimum of 3/4" of
concrete above it.
SlabHeat Cable should be 4"
to 6" from finished wall. DO
NOT INSTALL UNDER WALLS.
Finished
floor
SlabHeat
Cable
Concrete
slab
Wall
Gravel
base
Rewire
grid