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STEP Sunroom™ Print E-mail
PRODUCT SPECIFICATIONS
Heating Element Model:
EP-30-2-44W-24V

Output Wattage (at 24 Vac):
14.0 W/ft (45.9 W/m) @ 68ºF (20ºC)

Nominal Resistance:
41 Ω/ft (13 Ω/m) @ 68ºF (20ºC)

Width: 12" (30.5 cm)
Length: Cut to Order
Thickness: 3/64" (1.2 mm)
Technical Specifications   |   Approvals   |   Terms and Conditions of Sale

  • STEP Sunroom™ is designed to provide heated floors in sunrooms, conservatories, etc. For these applications, the floor covering is limited to concrete, tile and stone.
  • STEP Sunroom™ has a higher wattage output than the standard residential element, as these types of constructions have high heat losses.
  • A heat loss calculation is required to find out if STEP Sunroom™ can sufficiently heat a sunroom all year round. This will depend on the type of construction and insulation values of the substrate, ceiling and windows.
  • STEP Sunroom™ heating elements are normally connected to a 24V step-down transformer but they can also run on solar or wind power.
  • STEP Sunroom™ is self-regulating and cannot overheat, thereby using less electricity.
  • STEP Sunroom™ is strong, thin and flexible, easy to install and can be cut to size on the job site.

System Components
HEATING ELEMENT (EP-30-2-44W-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.
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
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.).
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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Did You Know?

Indoor Air Quality is directly correlated with respiratory illness.  The last thing you want your mechanical system to do is to distribute dust, mold spores, pollen, and other particulates throughout the structure. Because radiant heat does not blow allergens, it helps those with allergies and asthma find dramatic improvement to their symptoms.