Installation Guide

THERMOFILM® – The complete underfloor heating solution for all wood & laminate floors.
Thermosoft International Corporation Installation Manual: ThermoFilm®
Page 7
PRE-INSTALLATION CHECKLIST
 THERMOFILM underfloor heating systems are
designed to be used under laminate, engineered
board and solid wood flooring with a maximum
thickness of 0.5” (or thickness equivalent to a
maximum thermal resistance of 0.85
ft².hr.°F/BTU). When underlay is specified by the
manufacturer this may reduce the thickness of
flooring permitted. Always check to ensure the
final floor covering is suitable for use with
electric underfloor heating systems.
 THERMOFILM underfloor heating systems
operate on a 120 or 240 Volts AC electrical
supply. Please check all elements are the correct
voltage and power rating. Maximum loading is
11W/ft2 for standard product.
 THERMOFILM underfloor heating systems are
designed for simple “do-it-yourself” installation,
however all electrical connections must be done
by a qualified electrician and the complete
installation must comply with the National
Electrical Code and all local codes.
 THERMOFILM underfloor heating systems must
be protected by a ground fault circuit interrupter
(GFCI) if not incorporated into the control device
(thermostat) used.
 THERMOFILM must only be installed in dry
locations indoors and must not be installed in
“hazardous” or “wet” areas, as defined in the
National Electrical Code.
 THERMOFILM underfloor heating elements must
not be installed below fixed pieces of solid
furniture, cupboards, wardrobes, etc. as this
could lead to a local increase in temperature.
 Thick rugs, dog beds, bean bags, etc. must not be
laid on the heated floor as this may cause
localized overheating and damage the floor
covering. Care must be taken to ensure the
THERMOFILM heating elements are not
damaged during installation. It is advisable to lay
the floor immediately after installation.
 THERMOFILM heating elements must be
protected by a polymer vapor barrier.
 THERMOFILM underfloor heating systems are
designed to be controlled by our floor heating
thermostats up to a maximum 15A per
thermostat. If the installed load exceeds this
figure then a suitable contactor must be installed
by the electrician.
 Duct tape must be used for installation of the
thermal insulation, THERMOFILM heating
elements and vapor barrier.
 THERMOFILM Average Power Output
is 11 Wt/ft²
 THERMOFILM heating elements should always
be rolled copper outermost and should not be
handled in temperatures less than 23°F (-5°C).
Please take time to read carefully the following notes
and instructions before commencing installation: