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Radiant Floor Heating/Electric radiant floor control


Good afternoon,
I was inquiring about the temperature requirements for the shower area of a bathroom, is it required to have a 240 with a GCFI? Or could we buy something different?

Then a far a purchasing the controls for the heated floors, I was wonder do I have to purchase one or multiplies if I wanted to control the following; there's two bathrooms I want heated tile in the bathroom and heated tile in the shower area.  I want to set up a controller that will allow me to control all four sections separately.  would like to know if this is that possible

Badger Radiant Designs electric mat
Badger Radiant Designs  

Badger Radiant Designs electric mat
Badger Radiant Designs  
Dear Amy,

You can control every square foot of an electric radiant floor with slab sensors, but we rarely try to control more than one room at a time as over-controlling adds little to comfort or economy but much to the installed cost. Sometimes we just control the slab temperature in one area of a large room with another heat source for backup.

As for specific control, their voltage and safety devices, all such questions are best answered by your designer, engineer or installing technician carefully following the individual manufacturers design and installation instruction along with NEC codes and common rules for safe installation of line-voltage spade heating mats or wire.  

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Morgan M. Audetat


Radiant panel heating design, including floors and ceilings, European wall panels and snow melting for residential and light commercial buildings..............................................................-Master of Steam and Hot Water,City of Minneapolis....................................................--- Master Plumber, State of Minnesota...........


30 years..... Charter Board Member - Radiant Panel Association, former manufacturer of condensing boilers, former national distributor of radiant floor products, son and apprentice of mechanical & plumbing contractor. Current mechanical/plumbing contractor specializing in hydronic based, integrated HVAC systems. Radiant floor heating/cooling. Snow Melting. Condensing Boilers. Indirect water heaters. System design, consulting and technical training world-wide. Licensed contractor, designer, installer and consultant.

B.S. University WI 1981 CONTINUING EDUCATION: Viessmann Condensing boiler and Solar water heating certification 2010, N.D.S.U. Lead Worker RRP certification 2010, Knight condensing boiler certification 2009, Wrightsoft Manual J CAD certification 2009, RPA Designer & Installer Certification 2008, Nate Hydronic/Forced Air Certification 2008, Uponor/Wirsbo advanced design school certification 2007, Buderus Wall-hung certification 2007, Power Limited License (low voltage controls) 40 CE credits 2005, Basic Hydronic Certification IPEX & Northern Alberta Institute of Technology 1998, Charter Board Member - Radiant Panel Association 1994, Residential Off-Electric to Hydronic Conversion Heating School Canadian Hydronics Council 1994, B&G Little Red School House 1993, Rood Utilities (now Auburn Technical Institute) Oil Burner School 1993 ,Tekmar Controls residential and commercial 1993, Division Manager and Advanced Hydronic Seminar Instructor for the first Exclusively Hydronic Radiant Floor Distributor in the USA 1990, Hydronic Radiant Heating Association Workshop participant with Richard c. Bourne, PE spring 1988, Master Plumbing, Hydronic, Solar Course Red Rocks Community College 1987.

Awards and Honors
2009 System Showcase Award - Radiant Panel Association

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