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STEP Stairs™ Print E-mail
PRODUCT SPECIFICATIONS
Heating Element Model:
EP-23-2-22W-24V

Output Wattage (at 24 Vac):
6.8 W/ft (22.3 W/m) @ 68ºF (20ºC)

Nominal Resistance:
64 Ω/ft (20 Ω/m) @ 68ºF (20ºC)

Width: 9" (22.9 cm)
Length: Cut to Order
Thickness: 3/64" (1.2 mm)
Technical Specifications   |   Approvals   |   Terms and Conditions of Sale

  • STEP Stairs™ is designed for areas that require narrower heating elements – 9” instead of 12” wide.
  • STEP Stairs™ has a higher wattage output than the standard residential element. The output is equivalent to STEP Commercial™.
  • STEP Stairs™ is installed in applications that require more heat output due to a higher heat loss; e.g., on stairs, in tub edges, in shower benches, etc.
  • STEP Stairs™ can also be used for under the subfloor when spacing between joists is narrow or needs two strips of heating elements.
  • STEP Stairs™ operates on 24 volts and is safe to use even in wet areas.
  • STEP Stairs™ is self-regulating and cannot overheat, thereby using less electricity and does not wear out over time.
  • STEP Stairs™ is strong, thin and flexible, easy to install and can be cut to size on the job site.

System Components
HEATING ELEMENT (EP-23-2-22W-24V)
Low voltage (24V, AC or DC), self-regulating Positive Temperature Coefficient (PTC) semi-conductive polyethylene. Patented. Cut to order with 174 feet maximum shipping spool length.
CONNECTOR & TAPE KIT (C&T-10)
Includes (10) CON-DB Crimp Connectors, (1) 15” long piece of TAPE-1 Sealant Tape, (1) Label-1, (1) Label-2, and an installation brochure. Contains material to connect and seal five heating element strips to extension wires.
TERMINAL BOARD (TB-4X5A)
Fused Terminal Board, 24 Vac, four 5A PTC fuses, set screw lug terminals sized for #14-#4 AWG wires, terminal assignments – one primary hot, four fused secondary hot, and three neutrals.
TERMINAL BOARD ENCLOSURE (TBE-4, TBE-6)
Housing for TB-4X5A Terminal Boards enclosed in extruded aluminum profile w/ heat sink. Available in two sizes: TBE-4 (four TB-4X5A Terminal Boards max.) & TBE-6 (six TB-4X5A Terminal Boards max.).
TRANSFORMER (EP-150-US, EP-300-US)
Low voltage dry type isolation transformer. 120 Vac primary and 24 Vac secondary. NEMA 3R enclosure.
STEP TRANSFORMER (STEP-500VA, STEP-1000VA, STEP-1500VA)
Low voltage dry type isolation transformer. 120 / 240 / 277 Vac primary and 24 Vac secondary. Extruded aluminum profile enclosure w/ heat sink. Patent pending.
EXTENSION WIRE (TCu14-XXX-B/-W, TCu12-XXX-B/-W)
#14 (or #12) AWG stranded tinned copper (TCu) PVC insulated wire, 300 Vac, 105°C. Used to extend heating element bus braid wires to TB-4X5A Terminal Board.

Color Code: -B indicates black; -W indicates white
Spool Length: XXX = 50, 100, 150, 250 or 500 feet
CRIMP TOOL (TOOL-PRO)
Used to crimp CON-DB crimp connector. TOOL-PRO crimp tool is required as it is specially designed to properly crimp CON-DB crimp connector. Tool may be purchased or rented.

Optional Components
MICROREG CONTROLLER (MICROREG)
Electronic power controller with relay output for infinitely variable setting of requested heating output, up to 10A.
DIGI-LUX CONTROLLER (DIGI-LUX, DIGI-Therm, DIGI-Reg-1, DIGI-Reg-2)
Electronic Thermostat/Regulator combination (DIGI-LUX) used for zone control of STEP Warmfloor™ system. Thermostat (DIGI-Therm) can be flush wall mounted in single gang box. Each Regulator can control up to 2,500W of connected load. Up to three additional Regulators (DIGI-Reg-2) can be connected to first Regulator (DIGI-Reg-1) to allow for group control of up to 10,000W of connected load.


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Studies from the "Sick Building Syndrome" show a direct relation between indoor climate and symptoms such as fatigue and headaches.  Research shows that thermic indoor climate is also related to productivity.  The level of comfort with radiant heat at lower temperatures increases productivity by 20-30%.