Install Instructions

Types of Construction

Tile or stone applications with HeatMatrix

To install tile or stone over HeatMatrix and WarmWire, refer to the manufacturers recom-

mendations on mortar type, notch size and curing time. For areas exposed to surface water,

the seam between rows of HeatMatrix should be sealed with HeatMatrix Joint Strip. This is

done by troweling a strip of mortar over the seam, then pressing Joint Strip into the mortar.

Ensure these sections are as flush with the adjacent surfaces as possible. Once set, the tile

can be installed over these areas as usual.

Laminate, resilient or hardwood over HeatMatrix

When applying mortar over HeatMatrix in this application, the finish must be smooth instead

of notched. Do not use nails or screws to attach any type of flooring to the finished mortar

surface. A 'floating' floor installation is typically recommended for wood or laminate flooring

due to expansion and contraction caused by changes in floor temperature. When selecting

floor coverings, the R-value should not exceed R-2.5. when using 3" or 3.5" wire spacing

and not exceed R-1.5 when using 2.5" spacing.

Appendix 2: Types of Construction and Applications

Polymer modified

thinset mortar

Polymer modified

thin set mortar*

WarmWire

heating cable

Concrete or

plywood substrate

Tile, stone or

laminate flooring

HeatMatrix™

*modified or non-modified thin-

set mortar as recommended by

the tile manufacturer

Appendix 1: Minimum Clearances for WarmWire

Minimum Clearance

Bathroom vanity or kitchen cabinet toe-kick 1"

Showers or tub boundaries 3"

Doorway framing 3"

Walls 3"

Toilet flange 6"

Other heating wire 2"

Heating cable power lead 1"

Appliances (washer, dryer, oven) 1"

Baseboard heaters or radiators 3"

Below a built-in,cabinet,furniture 1-1/2"

Drains 2"

Do not install WarmWire in closets, pantries or in other small enclosed spaces.