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WarmlyYours Environ Flex Roll 1.5′ x 70′ 240V Electric Radiant Floor Heating Kit With nSpire Touch Programmable Touchscreen Thermostat

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WarmlyYours was the first to introduce nonadhesive, foil, electric floor heating to the North American market, and we have over a decade of experience with this advanced design heating technology. At 12 watts per square foot, the energy-efficient Environ™ systems allow for the gradual warming of delicate carpet and floating wood floor coverings.

The Environ™ Flex Rolls are flexible and specifically designed for easy installation under the carpet, laminate, or floating wood flooring. They can be cut and turned at 90° or 180° to provide thorough wall-to-wall coverage of larger spaces.

Environ™ Flex Rolls have no polarity. WarmlyYours controls are equipped with ground fault circuit interrupter (G.F.C.I.) protection.

Ideal for installation under laminate, engineered wood, and floating wood flooring, WarmlyYours Environ™ Flex Rolls add radiant warmth and comfort to any room. These easy-to-install rolls are C-UL-US Listed and produce 12 watts per square foot. The uniform spacing of the heating elements throughout the non-adhesive foil casing ensures even heat distribution across the entire floor. Along with comes the programmable nSpire Touch which features a 3.5” full-color touchscreen and a modern design that instantly augments any room’s style. With an integrated Install Wizard, it’s never been easier to set up a radiant heating system according to your preferences and schedule. The nSpire Touch allows you maximum control over the floor temperature with 4 programmable events for each day of the week, which is great for “Goldilocks households” where there will be frequent adjustments to the temperature or thermostat’s schedule until it’s “just right.” This dual voltage (120V/240V) thermostat puts the control where it belongs, at your fingertips. Includes floor sensor.

What's Included

  • 1.5’ x 70’ 240V Environ Flex Roll
  • Circuit Check 
  • nSpire Touch Programmable Touchscreen Thermostat
  • Floor Sensor

Not Included

  • Furniture 
  • Underlayment Underneath the Flex Roll


    • Fast and easy installation with the cut-and-turn method
    • Ultra-thin construction (1/16”) won’t impact floor height 
    • Installs without adhesives which means big cost savings 
    • Provides a heat output of 12-watts per sq. ft. 
    • 10-year warranty under laminate or floating hardwood, 5-year under carpet (US Only)
    • UL Listed in both the US and Canada
    • Circuit Check available to ensure fault-free installation
    • No glue, cement, or thin-set required (floating application)
    • Can be cut to fit into any shape (do not cut the heating wire)  

    Why Install Electric Floor Heating?

     ☑ Comfort

    The number one reason to install electric floor heating under a new floor is absolutely the comfort, a heated floor is literally a luxury you can feel but you probably already knew that.

    ☑ Safe

    The number one reason to install electric floor heating under a new floor is absolutely the comfort, a heated floor is literally a luxury you can feel but you probably already knew that.

    ☑ Affordable

    Electric floor heating is inexpensive if you put it in while you’re already replacing or installing a floor. In fact, the cost of electric floor heating systems is as low as $5 per square foot. Unlike hydronic systems, electric floor heating systems don't require expensive pumps or water heaters. Additionally, According to Zillow, homes with heated floors typically sell for 3.2% more.

    ☑ Flexible

    Electric radiant floor heating can be used as your primary heat source or as a way to add supplemental heat to rooms that are tricky to heat like the basement or a room above a garage.

    ☑ Clean

    Electric radiant floor heating is a very clean heat since it doesn’t rely on forced air, which can circulate dust and other allergens.

    ☑ Forced Air Alternative

    Floor heating systems aren't loud like a central furnace, don't dry out the air, and require no regular maintenance.

    ☑ Saves Energy

    Electric radiant floor heating has higher levels of energy efficiency than central air systems because it heats the people and objects in the room directly via infrared heat. Floor heating systems are also inexpensive to operate, you can heat a typical bathroom for pennies a day. 

    ☑ Easy-to-Use Thermostats

    The secret to any great heating system is a great control and we've got an entire line of them for our electric floor heating systems.



    Amps 5.3 A
    Battery 5-year battery backup of clock and calendar
    Circuits Required 1
    Connection 4 wires, double pole
    Connection Method Hardwired
    Dual Voltage +
    Floor Load 1.3 kW
    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
    Ohms 44.86 Ohm
    Supply 120 VAC - 50/60Hz, 240 VAC - 50/60Hz
    Voltage 240 VAC
    Watts 1260 W
    Watts Per Sq. Ft. 12 Watts Per Sq. Ft.
    Heating Element Thickness 0.063″
    Flex Roll Heating wire between two layers of fiber reinforced foil
    Heating Element Insulation Fluoropolymer
    Heating Cable Outer Insulation Metallic braid
    Heating Output 12 watts per sq. ft.
    Heating Element Thickness 3/64” (1.19mm) in diameter
    Flat Cold Lead

    • Length: 15’

    • Thickness: 3/16” x 9/32”

    • 17 AWG for rolls of 9 amps or less

    • 14 AWG for rolls over 9 amps

    • 1/2” conduit 2 cold leads max

    • 3/4” conduit - 3 cold leads Install per local code requirements

    Factory Splice Max Size

    • 1/4” (6.35mm) thick

    • 4.5” (11.4 cm) long splice

    Product Dimensions

    Cold Lead Length 15'
    Coverage 105 sqft
    Depth 0.1″
    Installed Depth 0.75"
    Length 70'
    Width 1′5″
    Weight 14.95 lbs


    Floor Sensor Compatibility 10k ohms, 12k ohms and custom
    Included Floor Sensor 10k ohms, 15' lead


    Color White


    Floor Types Commonly installed beneath carpet (excluding Canada), floating wood, and laminate


    BTU Per Hour 4299


    Display Backlit Display
    Display Size 2″ W x 3″ H (3.5″ Diagonal)
    Languages English, French, Spanish


    SKU ERT240-KIT-OT-1.5x70
    UPC (GTIN-12) 881308052898

    Packaging Dimensions

    Shipping Width 9"
    Shipping Height 9"
    Shipping Length 18"
    Shipping Weight 15.2 lbs

    Warranty / Certifications

    Approvals cULus listed
    Ingress Protection Ipxx Rating IP20
    Warranty 10 years under Laminate & Floating Hardwood, 5 Years under Carpet (US Only)

    Environ™ Floor Heating Systems are backed by WarmlyYours 5 and 10-year “No Nonsense™ Warranty* and WarmlyYours highly recognized lifetime 24/7 technical support. Due to the fact that we will also cover not only the cost of labor but also the cost of the floor itself, our warranty is renowned for being the industry's best. Our “No Nonsense™ Warranty” for Environ covers 5 years for under carpet applications and 10 years for under laminate or floating wood floors.

    About the Brand

    Frequently the company is asked how WarmlyYours chose its company name, WarmlyYours. When WarmlyYours began as an electric radiant heating products business over 20 years ago, WarmlyYours wanted a name that would embody the very essence of the business philosophy – treat the customers well and offer the very best floor warming systems and services in the industry. And above all else, always deliver on those promises to you.

    The name WarmlyYours reflects a deep, personal commitment to providing customers with the exceptional customer service that they deserve. WarmlyYours welcome any questions and relish the opportunity to provide customers with prompt and friendly assistance. Listening to feedback from thousands of homeowners and installers, WarmlyYours continues to improve on everything to better serve the customers. As a result, WarmlyYours have expanded its portfolio to include other radiant heating products — such as towel warmers and radiant panel heaters — to bring comfort and affordable luxury to all areas of the home.

    Core V