WarmlyYours WRM10089 Installation Instructions

IMPORTANT:

BEFORE STARTING YOUR FLOOR WARMING
PROJECT, PLEASE REVIEW THESE IMPORTANT DO’S AND DON’TS

DON’T

NEVER cut the warming cable

NEVER shorten the warming mat

NEVER connect TWO (2) warming mats together in series

NEVER fold or position the warming cable so that it overlaps itself or

other wires (this could cause dangerous overheating)

NEVER run a power lead or sensor wire across the warming cable

NEVER place built-in cabinets or other furniture with solid bases on top

of the heated area of the fl oor (this could trap heat and cause

dangerous overheating)

NEVER, when laying the system directly on top of a concrete subfl oor,

lay the warming cable over an expansion joint

NEVER run a warming cable in or through a wall

NEVER lay the warming system closer than 2” from a wall or another

heat source

NEVER connect warming mat to the power supply before it is installed

beneath the fl oor covering (this could cause dangerous

overheating)

DO

ALWAYS connect the system to a dedicated, GFCI protected,

20 Amp Circuit

ALWAYS test the warming system before, during and after installation

ALWAYS maintain consistent spacing when positioning the

warming cable

ALWAYS make sure that your fl ooring type is compatible with the

warming system

1

SYSTEM INSTALLATION

The installation process for a WarmlyYours fl oor warming system is

similar to that of fl oor covering installation and is performed using many

of the same tools. With a little care and conscientious observance of the

installation instructions, a fi rst time installer should have great success

completing their fl oor warming project.

If you encounter any diffi culties while installing your system, installation

support is available 24/7 by calling [phone].

STEP 1: VERIFY CONTENTS OF YOUR FLOOR WARMING KIT

Before beginning your installation project, check to make sure that your

fl oor warming kit contains the following items:

1. Floor Warming mat

2. Installation Guide & Warranty Registration

3. 7-Day Programmable Timer

If any items are missing, please contact a WarmlyYours customer service

representative at [phone] for expedited replacement.

Note: Never connect mat to the power supply before it is installed

beneath the fl oor covering (this could cause dangerous overheating).

2

STEP 2: GATHER TOGETHER REQUIRED INSTALLATION TOOLS

The following materials are required to perform a fl oor warming system

installation:

1. Digital Ohm Meter

2. Hot Glue Gun, Duct Tape or Staple Gun (for holding the
system in place while working)

3. Broad Tip Permanent Marker and Tape Measure

4. 1/4”, 3/8” or 1/2” Notched Trowel, Depending Upon Tile Size

5. Latex Modifi ed Thinset Cement

6. 7-Day Programmable Timer

STEP 3: ROUGH-IN ELECTRICAL WORK

The National Electric Code (NEC) recommends a dedicated circuit for all

fl oor warming systems. Local codes may differ, so always consult with a

qualifi ed electrician fi rst.

When installing a timer, use a 4” square, 2

1/8” deep electrical box with a single mud ring.

Electrical boxes are typically placed 4’ to 5’ off

the fl oor.

Note: A licensed, qualifi ed electrician should

perform the installation of the system thermostat

or control device and fi nal electrical hook-up.

The installation requires an electrical conduit

and a housing box.

3

STEP 4: CHECK AND PREPARE THE SUBFLOOR

WarmlyYours fl oor warming systems may be installed over any subfl oor
that is approved for tile or stone application, including plywood, backer
board and concrete slabs.

Note: Adding a layer of insulation over a
concrete slab will promote heat retention.
See page 12 for more information on insulation.

The subfl oor should be carefully inspected to
ensure that it is clean and free of sharp edges,
nails and other materials that may damage the
system’s warming cable. All debris should be
removed, protrusions sanded fl ush and the fl oor thoroughly vacuumed
before installation.

Note: If the subfl oor is a concrete slab that contains an expansion
joint, position the system so that it does not cross over the joint.

STEP 5: TEST POSITION YOUR SYSTEM ON THE SUBFLOOR
BEFORE INSTALLING

You should test fi t the warming system on the subfl oor to determine where
you would like to have the fl oor warmed for your personal comfort. See
pages 8-10 for various layouts.

Tip 1: Locate placement of the system’s thermostat

or control device and arrange the power leads
accordingly. Power leads should run alongside
the system and should never cross over or under
the warming cable, or themselves.

Tip 2: Use a permanent marker directly on the

subfl oor to indicate where to position the system.
These marks will serve as a ready reference during fi nal installation.

Tip 3: If multiple system mats are being installed in a single room,

position each mat so that the warming cable or power leads do not cross
over one another.

Note: Warming mats are never attached to each other in series. The

power leads of each mat must return separately to the power source.

4

STEP 6: CHECK SYSTEM OHM READING PRIOR TO INSTALLING

Before installing a system, check the Ohm resistance between the two
(2) power conductor wires to make sure that no breaks or shorts have
occurred that could affect the system’s future performance, and also test
between the two (2) braided sheaths.

The Ohm reading should be within +/- 15% variance of the factory reading
indicated on the UL label attached to the warming mat. If the reading
is outside of this variance, contact a WarmlyYours representative at

[phone] for assistance.

Tip 1: Check the Ohm meter to make sure that

it contains fresh batteries and is properly set/
calibrated to a scale setting of 0 - 200 prior to
taking a reading.

Tip 2: Record Ohm readings in the chart

provided on page 12 and keep handy for future
reference.

Tip 3: Do not hold the wires on with your hands.
See diagram.

STEP 7: SECURE SYSTEM TO SUBFLOOR

1. Position the system on the clean and prepared subfl oor. Run the power
leads back to the power supply without crossing over the warming cable.

Note: The yellow power lead wire is
approximately 13’ long and is generally considered
the beginning of the warming mat. The white power
lead is approximately 26’ long and is generally
considered the end of the mat. Either cable may be
shortened or extended to reach the power supply,
but as they are constructed like coaxial cables with
a sheath around the core conductor, the sheath
must be grounded at the control end.

Note: Wherever possible, lay the system with the warming cable down
and the mesh backing up to protect the cable from any trowel nicks during
tile or stone installation.

5

2. If installing a thermostat or control device that
includes a fl oor sensor, place the sensor head
under the fi berglass mesh and center it precisely
in the middle of the serpentine loop. Once
positioned, hold the sensor in place with hot glue
or duct tape to prevent it from moving during the
remaining installation.

Note: The 7-Day Programmable Timer does not use a sensor.

3. Likewise, once the system and power leads are in place, affi x each to
the subfl oor using hot glue or duct tape.

Note: Hot glue will not harm the warming
cable or power leads and may be used to hold
them in place. If using a staple gun, apply staples
through the fi berglass mesh only. Never staple
near or directly over the warming cable or power
leads.

4. Once in place, we strongly recommend that you take photographs of the
actual installation layout of your fl oor warming system. This will provide an
accurate record should you undertake additional remodeling in the future,
or in the unlikely event that some issue should arise with the installation.

STEP 8: COVER THE SYSTEM IN THINSET CEMENT

You are now ready to apply a thin, skim-coat
layer of latex modifi ed thinset cement over your
warming system.

6

1. Use the fl at edge of a trowel to carefully apply a
thin skim-coat of thinset cement over the warming
system and allow it to dry. Be careful not to nick
the warming cable or power leads with the trowel.

2. Once the thinset has thoroughly dried, install
the new fl oor covering. We recommend a 1/4” or
3/8” notched trowel to assure suffi cient coverage
of thinset for the application of a tile or stone fl oor.

STEP 9: ELECTRICAL POWER HOOK-UP

When required by local codes, use a licensed and qualifi ed electrician to
perform the system’s fi nal electrical hook-up.

Note: The Timer does not include a built in GFCI. Always connect the
system to a dedicated, GFCI protected, 20 Amp Circuit.

STEP 10: SYSTEM OPERATION

Before operating a new fl oor warming system, wait until the thinset cement
used to lay the tile or stone fl oor has fully cured to the manufacturer’s
specifi cations (usually 2 to 14 days). Failure to do so can affect the
thinset’s curing process, causing it to become brittle and weakening its
bonding characteristics.

Note: The Timer can be “on” a maximum of 8 hours in any 24-hour
period. Do not exceed more than 4 hours during any single use.

STEP 11: WARRANTY REGISTRATION

Your new WarmlyYours fl oor warming system comes with a standard
10-year limited manufacturer warranty and lifetime technical support. See
pages 14 &15 for entire warranty.

To activate your warranty, promptly fi ll out your warranty registration
on-line at www.warmlyyours.com/h/warranty-register/.

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BATHROOM AND POWDER ROOM LAYOUT EXAMPLES

WITH SMALL FLOOR WARMING SYSTEMS

Figure 1: 3’x2’ ValueMat™ in Toilet area

5’ 6” (168cm)

6’

(183cm)

Figure 2: 3’x3’ ValueMat™ by Shower

7’ 2” (218cm)

5’

(152cm)

3’ x 2’ Mat
(91cm x 61cm)

3’ x 3’ Mat
(91cm x 91cm)

5’

(152cm)

Figure 3: 3’x3’ ValueMat™ by Tub

8’ (244cm)

3’ x 3’ Mat
(91cm x 91cm)

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BATHROOM AND POWDER ROOM LAYOUT EXAMPLES

WITH MEDIUM FLOOR WARMING SYSTEMS

Figure 4: 3’x 5’ ValueMat™ Tub and general coverage

8’ 9” (267)

6’3”’

(191cm)

Figure 5: 3’x 6’ ValueMat™ by Shower and general coverage

9’ (274cm)

6’

(183cm)

Figure 6: 3’x 6’ ValueMat™ by Shower and general coverage

9’ (274cm)

3’ x 5’ Mat
(91cm x 152cm)

3’ x 6’ Mat
(91cm x 152cm)

5’ 9”

(175cm)

3’ x 6’ Mat
(91cm x 183cm)

9

15’

(457 cm)

BATHROOM AND POWDER ROOM LAYOUT EXAMPLES

WITH LARGE FLOOR WARMING SYSTEMS

Figure 7: 3’x 8’ ValueMat™ in Double Vanity area

15’ (457 cm)

3’ x 8’ Mat
(91cm x 244cm)

Figure 8: 3’x 10’ ValueMat™ by Shower and general coverage

13’ (396cm)

10’

(305cm)

10

3’ x 10’ Mat
(91cm x 305cm)

RECORD YOUR SYSTEM’S OHM READINGS HERE FOR READY
REFERENCE

Four (4) Ohm readings should be taken from each mat at each stage of
the fl oor warming system installation as listed below. This is necessary
to ensure that your system is functioning properly and that no breaks or
shorts have occurred that could affect its performance or integrity.

1. Core to Core: This is the reading between the two inner conductors

of the lead wires.

2. Sheath to Sheath: This is the reading between the two outer ground

sheaths of the lead wires.

3. Core to Sheath START lead: This is the reading between the inner

core and outer ground sheath of the lead wire at the beginning of the
mat. This reading should be infi nity.

4. Core to Sheath END Lead: This is the reading between the inner core

and outer ground sheath of the lead wire at the fi nish point of the mat.
This reading should be infi nity.

A digital Ohm meter should be used when taking readings. The meter
should be set to measure resistance in the range of 0 - 200 Ohms and
fresh batteries should be installed before commencing.

Product # or Size

Ohm Reading Ohms Ohms Infi nity Infi nity

After Unpacking Check Check

After Laying Mat

On Floor

After Laying Tile Check Check

When fi nished with the installation, record the fi nal core to core Ohm readings
on the warranty registration card and return it to WarmlyYours.

Core to

Core

Sheath to

Sheath

Core to

Sheath START

Lead

Check Check

Core to

Sheath END

Lead

NOTE: Remove the UL label(s) with the factory Ohms reading from
the warming mat(s) and store in a convenient location for future reference,
preferrably at the electrical panel box with the fl oor warming installation
layout plan and documents.

11

PROPER INSULATION PROMOTES HEAT RETENTION

When WarmlyYours fl oor warming systems are installed on a concrete
slab, we strongly recommend adding a layer of insulation to the slab prior
to installing the radiant fl oor heating system.

While WarmlyYours systems provide up to 25% more heating power per
square foot than the nearest competitor, the slab will always act as a “heat
sink.” Some of the heat that would otherwise be transferred to the fl ooring
surface will remain in the slab, causing the fl oor’s surface temperature to
be considerably lower. This is true with any fl oor warming system.

When installed on top of a concrete slab without insulation, it is generally
accepted that a radiant fl oor warming system will take the chill away from
the fl oor and provide a small amount of warmth.

Adding insulation on top of the slab and beneath any fl oor warming system
will allow a greater percentage of the heat generated to transfer to the
fl ooring surface. This leads to greater effi ciency and therefore faster warm
up times, higher expected surface temperatures and lower energy usage.
The fl oor will have the capacity to warm to a comfortable temperature, and
in some cases can be employed as the primary heat source for that room.

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WARMLYYOURS FLOOR WARMING SYSTEM

WARRANTY REGISTRATION

Thank you for purchasing your new WarmlyYours fl oor warming system.
To register your system, please send a copy to WarmlyYours via mail at
2 Corporate Drive, Long Grove, IL 60047, FAX to [phone], or
scan and send via email to: [e-mail] within 30 days of
date of purchase.

1. HOMEOWNER INFORMATION

Name

Phone

Address

Email

City

State Zip

2. INSTALLER INFORMATION

Check here if homeowner installed ❑

Company Name

Address

Email

City

State Zip

Installer Name

Company Fax

3. HEATING SYSTEM INFORMATION

Install Date

Installed Under: ❑ Tile ❑ Stone ❑ Laminate Wood ❑ Other ______________

Sub Floor Material

Set In Total Mats Installed ____

Mat 1 Mat 2 Mat 3 Mat 4 Mat 5 Mat 6

Mat Size

Final Ohm Reading

14

WARMLYYOURS FLOOR WARMING

SYSTEM WARRANTY

WarmlyYours, Inc., warrants the WarmlyYours fl oor warming system mats (“the Product”) to be free
from defects in materials and workmanship for ten years from the date of purchase, provided that
the Product is installed in accordance with the WarmlyYours product installation guide, any special
written or oral design or installation guidelines provided by WarmlyYours for the specifi c project
that the Product is intended, the provisions of the National Electric Code (NEC), and all applicable
local building and electrical codes. If the Product is determined to be defective in materials and
workmanship, and has not been damaged as a result of misuse, misapplication or improper
installation, WarmlyYours, Inc. will reimburse the cost for location of the fault, repair of Product,
and any labor and materials required to perform the repair. If repair of the Product is not feasible,
WarmlyYours will replace the Product or refund the original cost of the Product. Should the control
be defective or malfunction, return the control to WarmlyYours and it will be repaired or replaced (at
Warmlyyours’ option). The warranty does not cover removal or reinstallation costs. Other controls
carry their manufacturer’s warranty.

WarmlyYours Inc. assumes no responsibility under this warranty for any damage to the Product
prior to or during installation by anyone, including, but not limited to trades people or visitors to the
job site, or damage caused as a result of post installation work. Call our toll free number, (800)
875-5285, if you have any questions about installation. The Limited Warranty is null and void if the
Product owner or his representative attempts to repair the Product without receiving authorization.
Upon notifi cation of an actual or possible problem, WarmlyYours will issue an Authorization to
Proceed under the terms of the Limited Warranty.

Warranty Subject to the Following Conditions: 1. The warranty of the warming system must
be registered by completing and returning the attached ‘System Warranty Registration’ card to
WarmlyYours, Inc. within thirty days of date of purchase. Please keep your invoice, as proof of
date of purchase will be required in the event of a claim. 2. The warming mat must be installed fl at
under tile or stone fl ooring in a latex modifi ed thinset or a portland-based cement. 3. The warming
system must be electrically grounded and protected by a GFI (Ground Fault Interrupter). 4. The
installation must comply with all national and local electrical and building codes, as well as any
other applicable statutory requirements. 5. The manufacturer hereby reserves the right to inspect
the installation site at any reasonable time. 6. The warranty is not automatically transferred with
change of ownership, but the manufacturer may, on application, transfer the warranty for the period
remaining. This transfer is solely at the discretion of the manufacturer. 7. The warming system
should be used strictly in accordance with the following: 7.1 Hard wire the warming system mats to
a dedicated circuit. The voltage of the circuit should match the voltage of the warming system, and
the size of the circuit should be such that the warming system does not occupy more than 80% of
the circuit capacity. 7.2 Should you feel no warmth on the fl oor within 60 minutes, verify that there is
power to the control or thermostat. Contact WarmlyYours, Inc. after verifying that there is power at
the plug point. Under no circumstances should you or anyone else tamper with or attempt to repair
the warming system - this will render the warranty null and void. 7.3 Switch the warming system on
and off as you would any conventional electric heater, although timers or thermostats may be used
if preferred. 7.4 Use reasonable care in the operation of the warming system. Do not drop heavy
articles on the fl ooring or pierce the fl ooring with sharp objects. 7.5 All restrictions and warnings
detailed in the installation guide must be strictly followed.

WARMLYYOURS, INC. DISCLAIMS ANY WARRANTY NOT PROVIDED HEREIN, INCLUDING ANY
IMPLIED WARRANTY OF MERCHANTABILITY OR IMPLIED WARRANTY OF FITNESS FOR A
PARTICULAR PURPOSE. WARMLYYOURS, INC. FURTHER DISCLAIMS ANY RESPONSIBILITY
FOR SPECIAL, INDIRECT, SECONDARY, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
ARISING FROM OWNERSHIP OR USE OF THIS PRODUCT, INCLUDING INCONVENIENCE OR
LOSS OF USE. THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE FACE OF THIS
DOCUMENT. NO AGENT OR REPRESENTATIVE OF WARMLYYOURS HAS ANY AUTHORITY
TO EXTEND OR MODIFY THIS WARRANTY UNLESS SUCH EXTENSION OR MODIFICATION
IS MADE IN WRITING BY A CORPORATE OFFICER.

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30090-A 9/10