STEP Commercial™ - Heating offices, warehouses, factories etc.

STEP Commercial™ 12" (30cm) radiant heating element is designed to provide healthy and comfortable heat in an office, warehouse, factory,etc. The element can be used in new construction and for renovation.

STEP Commercial™ can be installed in concrete or over the concrete slab and can go under most floor coverings. 

It does not create drafts and blow dust around. The heat stays where you need it – at the body level and not in the ceiling.

STEP Commercial™ is maintenance-free and does not require a mechanical room or dangerous storage of gas or fuel.

  • Ordering Information

  • Technical Specifications

  • Features

STEP Commercial™ can be purchased as a system kit with all necessary components included. If the kit coverage does not fit your project please contact us and we will make a design and bill of material free of charge specific to your project. You can also use our design tool to calculate the bill of material.


STEP Commercial™ - Heating Systems
Model  Coverage in square feet System Components
Tile (3") Laminate (5") Concrete (8") Element Length Power Supply (EPI-LX-R) Conn. & Tape Kit Ext. Wire*
SC30-250 31 35 41 25 ft EPI-LX-R-250 2 50 ft x 2
SC30-500 62 70 83 50 ft EPI-LX-R-500 3 150 ft x 2
SC30-1000 124 140 166 100 ft EPI-LX-R-1000 4 150 ft x 2
SC30-1500 188 210 250 150 ft EPI-LX-R-1500 6 200 ft x 2
   * 12 AWG - White and Black       

We recommend adding a thermostat that must be purchased separately.  


General Installation Information 
Element Length*
Power Supply (24V)
Amps 120V
Amps 240V
25 ft (7.6 m)
50 ft (15.2 m)
100 ft (30.5 m)
150 ft (45.7 m)

* Maximum total element length per power supply. 

Read more about how to install radiant floor heating.


Model: EP-30-29W-24V
Heating Element type: Positive Temperature Coefficient (PTC) semi-conductor polymer
Width: 12" (305 mm)
Length: Cut to order
Max. Element Length: 50ft (15 m)
Weight: 0.23lb/ft (0.34 kg/m)
Thickness: 3/64" (1.2 mm)
Output Wattage (at 24VAC):  9.0 W/ft (29W/m) @68°F (20°C)
8.4 W/ft (27 W/m) @86°F (30°C)
Nominal Resistance: 64 Ω/ft (20 Ω/m) @68°F (20°C)
Primary Draw on 230V: 0.039 amps per foot (0.305)
Strong, thin and flexible element
Designed to provide healthy and comfortable warmth in an office, warehouse, factory, etc.
Heat the whole warehouse or just office areas. A heat loss calculation is required when primary heating is expected
Install elements in concrete or over concrete slab
Ideal for both renovation and new construction
Operates on 24 volts (AC/DC); Connect to a power supply, solar or wind power
Compatible with any floor covering including, tile, stone, wood, laminate, resilient and carpet.
Self-regulating; As the material gets warmer, less electricity passes through the plastic – therefore it is extremely energy-efficient
Easy to install; roll out the elements and cut to size on the job site, connect wires to power supply and elements
Maintenance-free when installed and does not require a utility room or dangerous storage of fuel or gas

About Us

Electro Plastics, Inc. dba STEP Warmfloor® is a US manufacturer of electric radiant underfloor heating, roof de-icing and snow melt systems. The company's headquarters is located in Saint Louis, Missouri, U.S.A. This 35,000 sq feet LEED registered building is a "living laboratory" as proof of the comfort properties and energy efficiency of STEP Warmfloor®. 


Our radiant heating products are ETL listed, have the CE marking and conform to ANSI/UL:

 intertek etl small    Cemark small



Contact us

  • Address: 11147 Dorsett Rd., Maryland Heights, MO 63043-3505.
  • Toll-Free: 1-877-STEPTEC(783-7832)
  • Tel: +1-314-426-3555
  • Fax: +1-314-426-3556