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SunTouch UnderFloor 16" x 16' long 120V 1.7A

SKU 1201616U2ST

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Main Features of 1201616U2ST SunTouch UnderFloor 16" x 16' long 120V 1.7A.



UPC 840213080846
Voltage 120 VAC
How to choose 120 or 240 Volt Same Energy efficiency & same Watts/SF. More Sq Footage per circuit with 240v
Watts Per SF 10 Watts per Sq Foot (approximately)
Heat Output BTUs per SF 34 BTU per Sq Ft/Hour
Heating Power : Total BTU's 728 BTU total
Manufacturer Watts Radiant
Brand Name SunTouch Floor Warming
Power Lead Type Armored, NEC color code, Single point connection at 1 corner of mat. No return wire like inferior products
Power Lead Length 10 Feet
Power Lead Wire Gauge (varies by heated area) 18 AWG
Product Thickness 0.125 (less than 1/8")
Heating Wire Spacing 2.5" inches
Ohms Reading (resistance value) 63-78 ohms
ZERO* EMF (Electro Magnetic Field) Yes. Verified by Independent Testing Laboratory as ultra low. REET test
Controls/Thermostat is required for operation SunStat Floor sensing thermostat
Conduit required for Power Leads Conduit does make installation easier in new construction
Packaging Easy Open Cardboard - no frustration
Length of heating area Feet 16' ft. feet
Width of heating area Inches 16" in. inch
Length of heating area Inches 192" in. inch
Instructions + Video

Instructions + Video

Instruction Manual
Install Steps

Installation Steps

SunTouch Underfloor Installation Step 1

Step 1

Unroll mat and staple 1 side to side of first joist so foil will be 2 from Sub floor above and hangs down like a curtain.

SunTouch Underfloor Installation Step 2

Step 2

Staple other side to opposite joist. Each mat must fit within a single joist bay.

SunTouch Underfloor Installation Step 3

Step 3

Mount Electrical boxes and connect mats in parallel to power in junction boxes. Follow applicable building and electrical codes, using conduit to electrical boxes as required. 15 amps maximum per thermostat. If you have only a few mats, the power leads may reach the thermostat without a Junction Box.

SunTouch Underfloor Installation Step 4

Step 4

Connect the SunStat thermostat and test the system. Then install fiberglass insulation batts (R-11 to R-19) up to the mats. Insulation must be installed at the ends of the joist bays vertically or 6 inches after the mat ends.

Kitchen Layout Example Using UnderFloor Mats

Each electric UnderFloor heating mat is designed to be installed in a single joist bay. The heating mats cannot be cut shorter to fit a shorter joist bay or altered in any way.

Do not try to fill multiple joist bays with 1 mat. However, multiple mats may be installed in a joist bay where there are obstructions (such as cross bracing) as long as they do not overlap or touch.

In this layout, four 9.5'x16" and eight 4'x16" mats are required to warm the floor area.

Kitchen Layout Example Using UnderFloor Mats

The heat mats are wired together in parallel (not in series) in junction boxes below the floor, then an electric wire is fed over to the SunStat control.

Mat lengths should be selected so they fit completely within each bay and allow for the easiest wiring. When all the power leads start on one side, it will be easy to wire them together in the junction boxes. Code requires junction boxes to remain accessible at conclusion of the job.

Skill Level Installation only by qualified persons. Electrician recommended for wiring. Read More
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.

GFEP / GFCI Protection (Ground Fault Circuit Interrupter) Required for each circuit. Built-in to all SunTouch SunStats.
Maximum Circuit Load 15 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 wire Yes.
Heating Wire construction ETFE Fluoropolymer, metal shield and Radiant Foil
Repairable Heating Wire Yes, Wire can be repaired. Repair kits and assistance available.
Shower Installation Permitted No
Installation Layout Map customized for my project Yes.
Expected Floor Temperature This is dependent on many factors. A well-insulated floor can ensure better performance.
Insulation Recommended Yes, required. See Installation Manual for specifics
Indoor Installation Only INTERIOR floor heating Application only. Never embedded in Mortar.
Installation On Sub Floor Stapled to sides of Joists.
Distance from Wax Ring at toilet flange See manual; 2-8" from most. Do not let foil touch any metal
Minimum Bend Radius Do Not Bend or remove wire from mat or Foil
Cut Warning No. Never cut the heating elements or foil to shorten
Minimum Installation Temperature 50° Degrees F / 10° Degrees C
More Details

More Details

What's In The Box Mat, Detailed Installation Manual.
Individual Items No
Warranty from Manufacturer 25 Year backed by 140 year old USA Manufacturer
Why Helps

UnderFloor = 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.

Amp Draw 1.7
Wattage : Total watts 160 watts
Heated Area $21.33
Size in Inches 16" x 192" (16x192 inches)
Size in Feet 1.33' x 16' (1.33x16 feet)
Installation Style Heating wire sandwiched between 2 layers of radiant foil. Edge mesh for stapling to joists
Custom Size Options None. Standard Sizes only. No customization possible
Safety Listing UL (Underwriters Laboratory) Listed for U.S. and Canada under UL 1673 and CAN/CSA C22.2 No. 130-03, File No. E185866
Canadian Electric Code reference No
Acceptable Floor Coverings Natural Stone,Tile, Laminate, Engineered Woods, Carpet, Vinyl, Linoleum, Solid Hardwood
Made In USA Made in USA

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