Brochure

I N T E R I O R S L A B H E A T I N G C A B L E
What is SlabHeat?
SlabHeat cable is a series resistance electric heating cable consisting of a polyurethane outer jacket, full coverage braided
copper ground plane, ETFE insulation, and dual copper heating elements connected to a single power lead for easy
single-point connection.
Where may SlabHeat be installed?
SlabHeat cable is designed to be installed in residential or commercial concrete slab, slab-on-grade, or slab-over-existing-slab
interior applications only. It cannot be used for exterior applications, snow melting, or in ceilings. For exterior and snow melting
applications, go to www.suntouch.com for information on our ProMelt electric snow melting products.
What are the power requirements for SlabHeat?
SlabHeat cable is available in either 120 VAC or 240 VAC models. Multiple coils may be combined on a single control up to a
maximum of 15 amps. DO NOT mix voltages on the same system if multiple cables are to be installed in an area. Never load
more than 12 amps (1440 watts) on a 15-amp circuit breaker, or 15 amps (1800 watts) on a 20-amp circuit breaker. If an area
requires more than 15 amps to be controlled by one thermostat, use SunStat Relay(s) to take the additional amp load.
What is the recommended wire spacing for SlabHeat?
Wire spacing for SlabHeat cable depends on the heat loss of the space and the required output from the floor. 4" wire spacing
would typically be used for sun rooms, basement slabs, bathrooms, kitchens, living areas, and baths with exterior walls. 6"
wire spacing is recommended for hallways, entry ways, and large areas with low heat loss. Please note insulation is always
recommended due to high heat losses in these areas. Never place SlabHeat cable any closer than 4" from itself or other items
such as underground cable or piping to avoid overheating them. Never place SlabHeat closer than 8" to an exterior wall.
How does a SlabHeat electric radiant floor compare to a hydronic (water based) radiant floor?
In general, hydronic radiant systems require more space for infrastructure, such as added space in the floor for tubes
and room in the mechanical room for a water heating appliance, pumps, valves and fittings. Hydronic systems allow for
various fuel sources, such as natural gas, oil, propane, solar, or electric. SlabHeat is limited to electric. SlabHeat is simpler
than hydronic, takes up less space, goes in faster and for small areas, the per square foot cost is much lower. Once the system
is installed, the floors will feel wonderful regardless of the chosen approach.
Who should install SlabHeat?
To install SlabHeat, intermediate skills in electrical wiring is required. Normally the heating product may be secured in place by
qualified installers. However, consider hiring an electrician to rough in the wiring, especially if it is necessary to route from the
circuit breaker panel. Please be aware that local codes may require this product and/or the thermostatic control be installed or
connected by an electrician.
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Can the SlabHeat cable length be modified?
SlabHeat Cable must never be cut shorter to fit, and must be completely embedded in concrete in the floor. Failure to do so
may result in damage to the product. If the exact size of SlabHeat Cable calculated is not available, it may be necessary to
adjust the warming area(s) or select the next smaller size.
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Frequently Asked
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USA: 4500 East Progress Place, Springfield, MO 65803; www.suntouch.com
Canada: 5435 North Service Rd., Burlington, ONT. L7L 5H7; www.suntouch.com
F-ST-SlabHeat-Product-Information 1111 © 2011 Watts Radiant