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TempZone Cable Kit 70 ft (21.9 sqft @ 3.75 in spacing) with nTrust 2.0 Touch Nonprogrammable Thermostat, Uncoupling Membrane, 120V, 3.7/ft, 2.24A




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Features

  • Loose TempZone heating cable supports custom layouts beneath tile or stone.

  • Includes Prodeso uncoupling membrane for heating-cable installation.

  • Includes an nTrust 2.0 nonprogrammable thermostat with LED display and touch controls.

  • Includes a Circuit Check monitor and two floor sensors.

  • 25-year warranty on the TempZone heating element.

TempZone Cable Kits with Uncoupling Membrane and nTrust 2.0 LED Touch Thermostat Description

Specifications

Electrical (TCT120-3.7W-070)

Amps 2.24 A
Cold Lead Wire Gauge 17 AWG
Floor Load 0.27 kW
Ohms 53.5124 Ω
Ohms Per Ft 0.764 Ohm/ft
Thermal Power 0.27 kW
Voltage 120 V
Watts 269 W
Watts Per Sq. Ft at 3.75 Inch Spacing Up to 12
Watts Per Sq. Ft. 9 to 15
Watts Per Sq. Ft. at 3 Inch Spacing Up to 15
Watts Per Sq. Ft. at 4 Inch Spacing Up to 11
Watts Per Sq. Ft. at 5 Inch Spacing Up to 9

Warranty / Certifications (TCT120-3.7W-070)

Approvals cULus listed
Warranty 25 Year Warranty
Wet Location Listed US, Canada

Warranty / Certifications (UTN5-4999)

Approvals cULus listed
Ingress Protection (IPxx) Rating IP20
Warranty Limited 3-year warranty and lifetime technical support

Performance (TCT120-3.7W-070)

BTU Per Hour 918 Btu

Electrical (UTN5-4999)

Battery No battery inside; confirmed by OJ Electronics
Connection 4 wires, double pole, screw terminals
Connection Method Hardwired
Ground Fault Protection GFCI, Class A, 5 mA
Maximum Current 15 A
Maximum Power 1800 W @ 120 V, 3120 W @ 208 V, 3600 W @ 240 V
Power Terminal Wire Gauge 14–12 AWG solid or stranded; 14–13 AWG stranded with ferrule
Signal Terminal Wire Gauge 22–18 AWG solid or stranded; 22–20 AWG stranded with ferrule
Supply 120 VAC, 208 VAC, 240 VAC (50/60Hz)

Product Dimensions (TCT120-3.7W-070)

Cold Lead Length 15′
Coverage 23.3 ft²
Coverage at 3 Inch Spacing 17.5 ft²
Coverage at 3.5 Inch Spacing 20.4 ft²
Coverage at 3.75 Inch Spacing 21.9 ft²
Coverage at 4 Inch Spacing 23.3 ft²
Coverage at 5 Inch Spacing 29.2 ft²
Heating Cable Length 70′
Heating Element Thickness 3/16″
Length 70′
Weight 2.6 lbs

Appearance (TCT120-3.7W-070)

Color Red

Appearance (UTN5-4999)

Color White Acrylic
Display LED Light Through

Product Dimensions (UTN5-4999)

Depth 1.73″
Installed Depth 0.46″
Length 4.98″
Weight 0.6 lbs
Width 3.09″

Installation (TCT120-3.7W-070)

Fixing Strips at 3 inch spacing 30
Fixing Strips at 4 inch spacing 30
Fixing Strips at 5 inch spacing 30
Floor Types Commonly installed beneath tile and stone
Ideal Cable Spacing with Competitor's Membrane 3½″
Ideal Cable Spacing with Fixing Strips 4″
Ideal Cable Spacing with Prodeso Membrane 3¾″

Thermostat (UTN5-4999)

Floor Sensor Compatibility 10k ohms or 12k ohms
Includes Floor Sensor 10k ohms, 15′ lead
Maximum Ambient Temperature Setting 77 °F
Maximum Floor Temperature Setting 104 °F
Minimum Ambient Temperature Setting 32 °F
Minimum Floor Temperature Setting 41 °F

Logistics (TCT120-3.7W-070)

Package Contents (1) TempZone Floor Heating Cable 120V 3.7W/ft 70 ft 2.2A (TCT120-3.7W-070); 1x Floor Heating Sensor (FH-BACKUP-SENSOR)
UNSPSC Code 40101830

Identifiers (TCT120-3.7W-070)

SKU TCT120-3.7W-070
UPC (GTIN-12) 881308048983

Identifiers (UTN5-4999)

SKU UTN5-4999
UPC (GTIN-12) 881308080426

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Frequently Asked Questions

Showing all 5 questions

Yes — the nJoy WiFi (UWG5-4999) thermostat supports all three major smart home platforms:

  • Amazon Alexa — use voice commands to set temperature or turn the system on and off.
  • Google Home / Google Assistant — integrates with Google Home routines and Nest displays.
  • Apple HomeKit — manage your floor heating from the Apple Home app and Siri.

The nJoy also works with the dedicated nJoy app (iOS and Android), which gives you full remote control including scheduling, temperature adjustments, and energy usage history from anywhere.

The nHance (UDG4-4999) and nTrust (UTN5-4999) thermostats are not WiFi-enabled and do not integrate with smart home platforms. They must be controlled locally at the wall unit.

Was this helpful?

WarmlyYours offers three current thermostat lines for electric floor heating, each suited to different budgets and feature needs:

  • nJoy WiFi (UWG5-4999) — The flagship smart thermostat. Connects to your home WiFi and is controlled via the nJoy app (iOS / Android), Amazon Alexa, Google Home, and Apple HomeKit. Features a full-colour touchscreen, 7-day programmable schedule, floor and air sensor support, and built-in GFCI protection. Best for homeowners who want remote access and smart home integration.
  • nHance (UDG4-4999) — A premium non-WiFi programmable thermostat with a large colour touchscreen. Supports a 7-day schedule, floor and air sensor, and GFCI protection. Best for those who want a high-quality display and programmable scheduling without a WiFi requirement.
  • nTrust (UTN5-4999) — A straightforward non-programmable thermostat for simple manual control. Compact form factor, supports a floor sensor, and includes GFCI protection. Best for secondary rooms, rental units, or anyone who prefers simple set-and-forget control.

All three thermostats are compatible with every WarmlyYours electric floor heating system (TempZone, Environ, and Slab Heat products). If you need help choosing, our radiant experts can recommend the right model for your project at no charge.

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While WarmlyYours electric radiant floor heating systems are typically installed by your floor covering contractor, a licensed electrician is recommended for the final thermostat hook-up. With every quote, we provide an Installation Plan layout, together with an electrical plan that has all the info required for the electrician.

41 people found this helpful
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Our electric radiant floor heating systems have withstood rigorous safety testing and earned the UL listing. They produce much less EMF than common household appliances like your TV or vacuum cleaner. The EPRI (Electric Power Research Institute) tests all electrical devices and publishes the data. Many common household appliances are tested at a distance of 6 inches. The test results indicate that on average, the EMF emitted for the following appliances, measured in Milligauss (mG) units, is:

Vacuum Cleaner: 300 mG

Microwave: 200 mG

Portable Heater: 100 mG

Dishwasher: 20 mG

Washing Machine: 20 mG

WarmlyYours TempZone™ (Twin): 1.8 mG

32 people found this helpful
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The floor heating systems are offered in both 120 volt and 240 volt for the North American market. A 208 volt breaker panel can also accommodate our 240 volt floor heating system. It is important to note that the energy consumption will be the same: a 240 volt system will not cost more to operate than a 120 volt system. You are billed in kilowatts, and the 120 volt and 240 volt systems use the same amount of kilowatts. WarmlyYours often specifies a 120 volt system in smaller projects while a 240 volt system is typically recommended for larger projects (120 square feet of electric floor heating coverage or more). The benefit of switching to a 240 volt system is the reduction in amperage. Our programmable thermostat can control a radiant floor system up to 15 amps. The 120 volt system will reach 15 amps at 120 square feet of electric floor heating coverage. However, the 240 volt system will reach 15 amps at 240 square feet of electric floor heating coverage, allowing a much larger system to be connected to the thermostat. For installations over 240 square feet, a relay contactor or power modules are needed.

26 people found this helpful
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