Tools and Calculators

STEP® Design Planner

Design your project with STEP® Design Planner. The program estimates the material needed for a project and you can export the project or request a quote based on the drawing.


Wire Gage and Length Calculator

This calculator can be used to identify the correct wire gage and length for STEP Warmfloor® products.


Element Spacing and Output Wattage by Product

This calculator can be used to see the different wattage output for STEP Warmfloor® products with different spacing between the elements.


Heated floors: Operating Cost Calculator


The operating cost calculator emphasize the importance of proper insulation and avoiding an on/off system to reduce your heating costs.


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
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