Installation Manual for your
TempZone™ Custom Mat
Electric Radiant Floor Heating System
Free Design Service • 24/7 Installation Support • No Nonsense™ Warranty • (800) 875-5285 • www.WarmlyYours.com
INSTALLATION INSTRUCTIONS
FOR WARMLYYOURS CUSTOM MATS
WARNING
READ ALL OF THE INSTRUCTIONS BEFORE BEGINNING INSTALLATION. FAILURE TO OBSERVE
THE WARNINGS COULD RESULT IN DEATH OR INJURY FROM ELECTRICAL SHOCK OR FIRE. MAT
FAILURE, IMPROPER OPERATION OR FLOOR DAMAGE MAY ALSO BE A RESULT. A MAT WARRANTY
IS PROVIDED (PER NOTED TERMS) BASED ON THE INSTALLATION BEING DONE IN ACCORDANCE
WITH THESE INSTRUCTIONS. IMPROPER INSTALLATION MAY VOID WARRANTY.
Inspection
Electrical inspection may be required during and or after heating mat installation. BEFORE BEGINNING INSTALLATION
contact your local electrical and building inspection authorities for more information. Local codes may require this mat and/
or the thermostatic control to be installed or connected by an electrician. WarmlyYours requires all electrical connections
be made by qualifi ed personnel and in accordance with the National Electrical Code (NEC) or National Electrical Code
(NEC) and all applicable local codes and ordinances.
Application
The WarmlyYours mat has been designed to warm hard surface materials such as ceramic and porcelain tiles, marble,
granite, slate, laminate and engineered wood fl ooring. WarmlyYours mats are designed for use inside residential and light
commercial buildings.
DO NOT use the WarmlyYours custom mat for applications other than for embedded indoor fl oor warming.
DO NOT use the WarmlyYours custom mat with carpet, solid wood, linoleum or vinyl fl oors.
DO NOT energize the WarmlyYours custom mat until it is embedded in thinset masonry and the masonry has cured per
manufacturer’s recommendations.
DO NOT cut or modify the WarmlyYours custom mat to fi t the area.
DO NOT overlap WarmlyYours custom mats.
DO NOT use staples to hold or secure the cold lead or thermostat sensor wire.
DO NOT attempt to repair a damaged heating mat, call WarmlyYours for instructions before proceeding further.
DO NOT unroll and install mat when it is colder than 0C (32F).
DO NOT cross construction or expansion joints.
WarmlyYours custom mats provide comfort warming. WarmlyYours custom mats are approved to standard C22.2 No
130-03 and carry a –X rating, suitable for indoor embedded fl oor surface heating, dry locations. Residential kitchens,
basements and bathrooms (not shower areas) are considered dry locations. WarmlyYours mats must be connected to a
ground fault protection device. WarmlyYours “TH” series thermostats include ground fault protection, if this thermostat is
not used the mat must be connected through a separate ground fault protection device.
Planning Ahead
To reduce the potential for tile cracking ensure the subfl oor structure is built strongly enough to accommodate the tile
(slate, granite, etc.) and tiling method selected. Your local tile retailer may be able to help with such information. The Tile
Terrazzo Marble Association of Canada or the Tile Council of America have published standards available which provide
detail on recommended methods of fl ooring construction. If using metal mesh always fully cover the mesh with a layer of
thinset prior to laying the mat, the metal mesh is sharp enough to damage the heating mat.
If applying the mat to a fl oor which is over an unheated area it is recommended that the area below the fl oor be insulated.
If left uninsulated, the fi nished fl oor may not be able to achieve comfort temperatures due to heat loss from below.
WarmlyYours recommends that the mat be installed on a dedicated 20amp circuit. There are instances where the load
requirements of the mats installed will exceed the dedicated circuit rating. In these instances contact relays (“commonly
known as contactors”), devices designed for the control of multiple mats from a single thermostat, are available. Consult
your local electrical inspection authority for the appropriate method of installing and wiring these devices.
Ensure mats powered through a relay are protected by a ground fault protection device such as a ground fault breaker.
Ensure electrical junction boxes are properly positioned.
Tools required
Square notch trowel, 1/4”x1/4” or larger (e.g. 3/8” x 3/8”)
Rubber grout fl oat
Tape or hot melt glue
Electrical and construction tools: (screwdriver, wire stripper, etc.)
Digital ohmmeter capable of 20 to 20,000 ohms readings
Materials
WarmlyYours mat
Tiling materials (latex/polymer modifi ed thinset mortar, waterproof membranes, tile, grout, etc.)
Floor-sensing thermostat
Ground fault protection device (if not part of the thermostat)
External contact relay and ground fault protection device (for multiple mat installations)
4x4 Electrical junction box for thermostat (conduit if required) with single gang mudring.
Subfl oor Preparation
Before beginning installation ensure the subfl oor is clean and free of loose material, any protrusions such as nails or
screw heads sticking above the fl oor level must be removed and ridges levelled smooth. Review and follow the thinset
manufacturer’s recommended fl oor preparation requirements.
Dry Fit
Completely roll out the mat(s) on the fl oor to ensure it fi ts the fl oor space. DO NOT cut or modify the WarmlyYours mat to
fi t the area, if there is a problem with fi t contact WarmlyYours. The cables are on the bottom of the mat and are embedded
against the subfl oor, the tile is set on top of the fabric. Each mat has 2 cold leads which must be run to an electrical
connection box.
Ensure that you have the
sensor for the thermostat; it is
usually packed in the same box
as the thermostat and will be
needed prior to tiling or putting
on the laminate or engineered
wood fl oors.
Lay out the cold lead and run to the junction box. DO NOT run the cold lead on top of the mat, run along the edge of the
mat. Use a marker to trace the cold leads and mark the splice locations on the subfl oor. The cold lead and splice are
slightly thicker than the mat, some removal of sub-fl oor material may be required where the splice will set or where the
cold leads will run to eliminate any possible interference with the tile.
Drill or cut holes at the bottom wall stud plate for routing the cold lead and thermostat sensor wire to the electrical junction
box. The braided cold lead may be installed with or without electrical conduit, confi rm conduit requirements with your local
electrical and building inspection authorities.
Verify the mat voltage is correct; 120V mats have black and white leads, 240V mats have red and black leads. Confi rm
the leads are long enough to reach the electrical junction box and can extend a minimum of 6” beyond the box
.