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WarmWire kit 200 Sq Ft 240V Radiant Floor Heating Cable

Item Number: 240200WD-KIT

Manufacturer: Watts Radiant

MFR Part No: 81009503

Alternate Part No: 240200KIT

WarmWire floor heating cables are similar in construction and provide heat just like SunTouch mats, but install differently and cost less. Simply place and attach the WarmWire strap to the subfloor and weave the wire back and forth between straps to create your own heated area.

Quick Overview

WarmWire floor heating cables are similar in construction and provide heat just like SunTouch mats, but install differently and cost less. Simply place and attach the WarmWire strap to the subfloor and weave the wire back and forth between straps to create your own heated area.


Guaranteed Low Price: $1,185.00

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Product Information

200 Sq Foot Kit contains two spools for a total of 940 Ft of WarmWire 240200WDST-J to heat 200 Sq Ft at 2-1/2 inch spacing (12 watts per Sq Ft), a Programmable & GFCI Protected electronic thermostat with built-in timer. This Kit includes the following items packaged at the SunTouch Factory in the USA. Included in this Kit:

  • 240200WDST-J Two WarmWire floor Heating Wire Spools for a length of 940 Ft with a 10 Ft Armored power lead
  • SunStat PRO II Thermostat Model 500775 with dual Voltage, Built-in GFCI protection, and Preset or Custom programming, with LCD Backlit display
  • 15 Ft floor sensor wire included
  • Loud Mouth installation monitor for audible warning if continuity wire is broken during installation, simply connect the included 9-volt battery
  • Designed & patented by SunTouch, Pro Contractors call this handy tool piece of mind
  • 5 Coil of WarmWire Strap
  • Double sided super-sticky tape 3/4 inch wide x 108 feet long, is very thin and low profile to adhere your WarmWire Strap to the sub floor. It works on concrete, plywood or concrete board to hold the cable in place while you trowel over it
  • Installation Manual with all instructions, suggestions and examples of floor heating layouts

And, Only from Warm Your Floor, we include:

  • Free Digital OHM Meter for testing of your WarmWire before, during and after installation.
  • SunTouch tips, tricks & secrets from experienced installers gathered over our many years as Radiant Floor Experts
Product Details

WarmWire = Zero EMF

An emerging issue in the electric radiant heat industry is EMF (electromagnetic field) radiation. SunTouch pioneered and sells only ZERO EMF products constructed with active dual wire EMF-canceling technology.

All SunTouch products use a complex wire construction with two heating elements in parallel with an added and patented helical twist to eliminate EMF. Other electric radiant floor heating companies sell single-wire systems that release high levels of EMF when compared to SunTouch.

What is EMF? Electromagnetic fields (EMF) come from all electrical appliances, but studies show an average American's daily exposure is less than 1 unit (mG) of EMF. But. when you sit on an unshielded electric radiant floor, you may be exposed to 20, 40, or more times the average daily exposure. This Data comes from Independent testing. Read More Here

Is limiting exposure to EMF important? No one is certain. The World Health Organization says the data is inconclusive to date, but continues their research. We provide this EMF information because it is important to some people, not to frighten you or exaggerate any risk.

For many years customers have chosen SunTouch Zero EMF systems, but we leave the choice to you after explaining what we do know.

What's In The BoxWarmWire Spool, Coil(s) strap, SunStat PRO II Programmable Thermostat, Sensor Wire, LoudMouth, Tape, Digital Digital Multimeter, Detailed Installation Manual.
Warranty from Manufacturer25 year warranty backed by USA Manufacturer since 1873
Heated Area Size Covered200.00
Amp Draw10.00
Cable length in inches11280" in. inch
Cable length in feet940' ft. feet
Cable length in meters284.85 m meter metre
Wattage : Total watts 2400 watts
Installation StyleHeating Cable secured to floor using Metal Cable Strap (track). Strap secured to floor with tape,screws or glue
Custom Size OptionsNone. Standard lengths only. No customization
Safety ListingUL (Underwriters Laboratory) Listed for U.S. and Canada under UL 1673 and CAN/CSA C22.2 No. 130-03, File No. E185866
ColorClear flexible Polyurethane Coating Jacket over Stainless Steel braid
Cable strap or guides5 recommended (1 for every 40 - 50 sq ft)
Acceptable Floor CoveringsNatural Stone,Tile, Laminate, Engineered Woods, Carpet, Vinyl, Linoleum, Solid Hardwood (if you use sleepers)
Made In USAMade in USA
Instruction ManualWarmWire WWKIT240200WD kit 200 Sq Ft 240V Radiant Floor Heating Cable Installation Manual
Skill Level : D-I-Y Simple for Install, PRO for ElectricRunning Cable more difficult + more time than MATS. Installation only by qualified persons. Electrician recommended for wiring. Read More
GFEP / GFCI Protection Required (Ground Fault Circuit Interrupter)Required for each circuit. Built-in to all SunTouch SunStats.
Circuit Breakers and Supply Wire (always follow local code)
Mats or WireSupply WireBreaker
VACtotal amps(AWG*)qtytyperating
120up to 12 amps141single pole15 or 20 A
120up to 15 amps121single pole
20 A
240up to 12 amps141double pole15 or 20 A
240up to 15 amps121double pole20 A

* Recommended only. Follow local codes for wire gauge size.

Maximum Circuit Load15 Amps
Maximum Circuit Overload Protection 20 A Breaker.
Electrical Box Size (Where Mats connect to Thermostat)Extra-deep single-gang box for 1 or 2 leads, Or 4" square deep box for 3 cables (extra room needed for Wire, wire nuts, control)
Full Length End-to-End ground wireYes.
Heating Wire constructionETFE Fluoropolymer, Stainless Steel Ground Braid shield and Outside layer of Clear Polyurethane
Heating Elements (Dual Wire)Oxygen-free copper or nickel-copper
Repairable Heating WireYes, Wire can be repaired. Repair kits and assistance available.
Shower Installation PermittedYes, can be installed in a tiled shower. UL listed, verify local code.
Installation Layout Map customized for my projectNo - example in manual. We provide Layout Maps only for MATS
Expected Floor TemperatureThis is dependent on many factors. A well-insulated floor can ensure better performance.
Insulation RecommendedYes; under slabs or framed floors. Cork or similar on top of Concrete Subfloor as thermal break
Indoor Installation OnlyINTERIOR floor heating application only. Embedded in mortar or self leveler only
Installation On Sub Flooron TOP of Sub Floor (Plywood, backer board, concrete)
Distance from Wax Ring at toilet flangeInstall 4 - 6 inches away; can be under front of toilet. Approx 20" from wall
Trowel Size recommendedMinimum 3/8" x 1/4". Dependent on tile size - verify with tile/mortar manufacturer
Trowel type RecommendedHeavy Duty Plastic PRO-Trowel
Cut WarningNever cut the heating elements to shorten
Minimum Installation Temperature50° Degrees F / 10° Degrees C
Voltage240 VAC
How to choose 120 or 240 VoltSame Energy efficiency & same Watts/SF. More Sq Footage per circuit with 240v
Watts Per SF12 Watts per Sq Foot @ 2.5" in. inch spacing
Heat Output BTUs per SF41 BTU per Sq Ft/Hour @ 2.5" in. inch spacing
Heating Power : Total BTU's8200 BTU total
ManufacturerWatts Radiant
Brand NameSunTouch Warm Wire
Power Lead TypeArmored, NEC color code, Single point connection at 1 corner of mat. No return wire like inferior products
Power Lead Length10 Feet
Power Lead Wire Gauge (varies by heated area)14 AWG
PackagingEasy Open Cardboard - no frustration. Easy to dispense wire from box
Product Thickness1/8" - 3/16" (nominal) Shorter cables are thinner.
Heating Wire Spacing2" - 2.5" - 3" on center
Minimum Bend Radius1/2" 0.50 inch
Ohms Reading (resistance value)multiple
ZERO* EMF (Electro Magnetic Field)Yes. Verified by Independent Testing Laboratory as ultra low.
Controls/Thermostat is required for operationSunStat Floor sensing thermostat
Conduit required for Power LeadsConduit is not required for Power Leads
Width of heating area FeetVariable - you determine layout width, length, shape
Spacing between runs (inches) Heated SF Watts Per SF BTUs/SF/Hr
2 160 15 51
2.5 200 12 41
3 240 10 34

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