Dry-Fit /
Cutting & Turning
1. Verify that the cold lead wires at the end
of each roll will reach the thermostat
location. Run the cold lead wires no
closer than 1” from the edge of the
warming roll. Cold lead wires cannot
cross over a warming cable or the
sensor wire (if applicable). Please note
thickness of the factory splice and cold
lead and plan accordingly.
2. Cut the fiberglass mesh backing as
needed. Never cut the heating cables.
Lay out the heating rolls on the floor for
the final dry fitting review.
Install Warmlyyours
Heating Rolls
1. Use a staple gun, hot glue gun, or
tape to secure the mat meshing to the
subfloor every 6-8 inches. NEVER
staple the wires, only the green mesh.
2. If the system is controlled by a
thermostat, choose a sensor location
within 8 feet of the thermostat box
and not in an area hit by sunshine or
in an uncommonly cold area. Place
the sensor underneath the fiberglass
backed mesh, and center it directly
between the heating wires (See
Diagram 1). It must project at least 6”
into the heated area. The sensor wire
must not cross heating wires, but may
cross the cold leads if necessary.
3. Run all cold lead wires beside the mats
securing them to the subfloor with hot
glue or tape every 8-10 inches in a
flat path back to the control or junction
box location. For even tiles , you may
need to route into the subfloor or
underlayment for clearance of the cold
lead and splice.
4. Perform 2ND ohm test. Connect circuit
check (if purchased) to each heating roll.
Diagram 1
Tile Installation
One-step method:
1.
Apply 3/8” of latex-portland cement with
a square notched trowel over the rolls,
trowelling in the direction of the wires
whenever possible.
2.
Set tiles as recommended. TIP: Remove
excess thin-set that may ooze up between
the grout joints with a wet rag, toothbrush
or sponge while installing the tile, in
preparation for a clean grout installation.
NEVER use a utility knife to remove cured
thin-set from grout joints as this can easily
damage the heating wires and void the
warranty.
3.
Disconnect Circuit Check and Perform
and record 3RD ohm test on Warranty
Registration Card.
Two-step method:
1.
Apply a 1/8” skim coat with a flat rubber
trowel using latex-portland cement or self-
leveling cement over the rolls and allow
proper cure time as per manufacturer
recommendation before moving to next
step.
2.
Apply a second ¼” layer of latex-portland
cement using a square notched trowel and
set tile as recommended. TIP: Remove
excess thin-set that may ooze up between
the grout joints with a wet rag, toothbrush,
or sponge while installing the tile, in
preparation for a clean grout installation.
NEVER use a utility knife to remove cured
thin-set from grout joints as this can easily
damage the heating wires and void the
warranty.
3.
Disconnect Circuit Check and Perform
and record 3RD ohm test on Warranty
Registration Card.
Electrical Connections
1. The electrical wiring should follow the
wiring instructions provided with the
thermostat.
2. The thermostat is mounted in a double-
gang wall box with a single-gang mud ring.
3. The heating mats must be connected to
the electrical service via a GFCI (Ground
Fault Circuit Interrupter). The GFCI feature
is incorporated in the thermostat.
4. All electrical connections should be
performed by a licensed, certified
electrician.
Allow proper thin-set and grout cure time as
recommended by the manufacturer before
powering-up the WarmlyYours electric
radiant heat system.
Ceramic Tile & Natural Stone Floors - Cont.
STEP 1
STEP 2
STEP 3
STEP 4
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