Full Product Manual

Installation and Operation

SECTION 5

5.4.6 Instructions for Installation Under Hardwood Flooring

Note : Although TempZone™ Floor Heating Cable is approved for direct contact with combustible

material, WarmlyYours strongly recommends that the cable be embedded in thinset, self-leveling

underlayment, cement-based adhesive glue, or tile adhesive under wood ﬂooring surfaces.

STEP 1: Install wood sleepers

Using nails, adhesive, or other acceptable means of attachment, install

wood sleepers (strips of wood 1 to 2 inches wide and 3/8 to 1/2 inch high) at

intervals 19 inches apart, or distance speciﬁed by the ﬂooring manufacturer,

perpendicular to the planned direction of hardwood boards.

The plywood subﬂoor must leave appropriate spacing and gaps for any

planned runs of cable to other heated areas. The sleepers are ﬁxed in such a

manner that they create a required gap between two sleepers in which the

warming system can be installed.

STEP 2: Install the ﬂoor warming system

Install Cable Fixing Strips as described in section 5.5.1. Using the Cable Fixing

Strips to secure the cable, install the ﬂoor warming system into the gap

created by the sleepers. Carefully return the power leads to the power supply

alongside the warming system and wood sleepers. Attach PowerMan™

and Circuit Check™ to the cold leads at this time. Refer to section 5.3 for

PowerMan™ instructions and section 5.4 for Circuit Check™ instructions.

STEP 3: Cover the ﬂoor warming system with self-leveling

compound

After the warming system has been put in place, it should be covered with

self-leveling compound up to the height of the sleepers. Do not cover the

sleepers. The tops of the sleepers should remain uncovered and visible.

STEP 4: Install hardwood ﬂooring

Allow the appropriate time for the self-leveling compound to completely dry

and cure. After the compound has dried and cured, install the hardwood

ﬂooring. The hardwood ﬂoor can be installed by nailing it to the wood

sleepers. Be careful not to place nails or staples near the system’s heating

cable or power lead.