Contact Us After Hours

Loading contact options...

Sign In

Loading...

TCT120-KIT-UWG5-090 Frequently Asked Questions

Don't see the answer you're looking for? Post your question

Frequently Asked Questions

Showing 10 of 47 questions

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 Was this helpful? Yes No

Yes. Unlike the heating cable for electric floor heating, the cold lead wires can be trimmed.

22 people found this helpful Was this helpful? Yes No

Since most Luxury Vinyl Tile (LVT) manufacturer's set a maximum temperature for radiant floor heating, the system should have little to no effect on the rubber/cork backing.

Pre-attached backing can act as an insulating layer though, meaning it can prevent the radiant heating from efficiently directing heat up through the floor. Please check with the manufacturer for the r-value of the product. Look for an assembled plank with an r-value of less than 1. The lower the r-value, the better!

8 people found this helpful Was this helpful? Yes No

The breaker and wire sizes are selected based on the total amperage of the WarmlyYours heating system connected to a single thermostat. This information is on the WarmlyYours heating system's installation plan, electrical plan, or UL label. Based on guidelines from the National Electrical Code: loads up to 16 Amps may utilize 12 gauge wire with a 20-Amp breaker, and loads up to 12 Amps - 14 gauge wire with a 15-Amp breaker. Local code and/or other factors may change these guidelines.

6 people found this helpful Was this helpful? Yes No

Yes, using a square-notch trowel (1/4” x 1/4” or larger), apply a layer of thinset to the subfloor area which will later be covered by the WarmlyYours TempZone™ Flex Roll, Easy Mat or Custom Mat.

5 people found this helpful Was this helpful? Yes No

Yes. The WarmlyYours TempZone™ floor heating system has withstood rigorous safety testing by the Underwriter's Laboratory and has received UL listing for the U.S. as well cUL certification for Canada. WarmlyYours offers thermostats that carry the CSA Mark and the UL listing, which certifies that the product has been tested under extreme conditions and meets applicable standards for safety and/or performance in the U.S. and Canada. All WarmlyYours thermostats contain a Ground Fault Circuit Interrupter (GFCI) which provides fail-safe protection against an electrical shock.

5 people found this helpful Was this helpful? Yes No

Waterproofing for the room is in the layer above the floor heating system. The layers for waterproofing this type of floor are:

  • subfloor
  • thinset
  • uncoupling membrane
  • tempzone heating cable
  • waterproofing tape for seams and corners
  • thinset or self leveling cement
  • tile floor
5 people found this helpful Was this helpful? Yes No

For best results, we recommend a 1”- 1.5” maximum distance between the heating cable and the top of the floor. Nailed down hardwood will require sleepers to run the cable safely between board nails. Be sure to use 3/8" to 3/4" of self-leveling cement to embed the heating element.

4 people found this helpful Was this helpful? Yes No

Bathrooms designed with shower and floor heating will include only one thermostat by default. But it is possible to design with a thermostat for each zone if desired. Installing a separate thermostat for the shower area can help reduce cost and energy usage. This also allows you to heat the bathroom floor alone for everyday use and only heat the shower area when needed.

3 people found this helpful Was this helpful? Yes No

Yes, with our programmable thermostats, you can choose which days and times the floor heating turns on for your comfort. With a Smart thermostat, you can also control these options from your phone while away from home.

2 people found this helpful Was this helpful? Yes No

Make sure any cracks or raised edges are sanded down before installation. Seal and patch cracks where possible. If needed, pour a layer of self-leveling cement to make sure surface is level and flat. Then proceed with instructions to install desired floor heating system and flooring.


It is strongly recommended that an insulating underlayment be installed between the slab and heating element to prevent heat loss.

2 people found this helpful Was this helpful? Yes No

TempZone™ is an electric floor heating system that operates like an electric blanket for your floors. TempZone™ is covered in thin-set or Self-Leveling Underlayment, and is installed over the top of your subfloor and beneath your flooring. The system provides a warm, even temperature across your floor, generating floor-to-ceiling radiant warmth to transform these naturally cold surfaces into warm floors. Ideal for kitchens, bathrooms or any room in your home where you would enjoy radiant warmth and comfort, the TempZone™ floor heating system is easy to install, operate and maintain.

2 people found this helpful Was this helpful? Yes No

We usually recommend that you have an individual thermostat for each room. However, if it's an open floor plan and your local electrical code allows you to have one controller for the whole area, then it's definitely possible to have it all controlled from one thermostat.

1 person found this helpful Was this helpful? Yes No

Reflective insulation is not effective with conductive heating, which is how embedded floor heating and snow-melting systems transfer heat. To be effective, the reflective insulation surface needs to face an air space (air gap), which allows the reflected heat to be redirected.

An effective solution considers the insulating material's R-Value. This is the rating of a material's insulating properties. The "R" stands for "resistance" and refers to the material's resistance to heat flow, or temperature conduction.

1 person found this helpful Was this helpful? Yes No

We recommend verifying 3 things with the manufacturer of the flooring product to be heated;

1.) Is the flooring product compatible with electric floor heating?

2.) What is the maximum temperature the flooring product can withstand?

3.) What is the temperature set back recommendation of the flooring product?

1 person found this helpful Was this helpful? Yes No

Yes, we offer several options to help make your floor heating system water resistant or waterproof. Our TempZone product line is designed for wet areas - making it completely safe for rooms that will have water on the floor at times or may experience leaks or flooding. We also offer waterproofing bands for our TempZone Cable + Prodeso Uncoupling Membrane system. Allowing you to waterproof all seams and the perimeters of the wall - guaranteeing that your floor heating system stays safe and prevents water from leaking to areas below.

Was this helpful? Yes No

Yes, many homeowners successfully install bathroom floor heating systems themselves. WarmlyYours provides detailed installation manuals, 24/7 technical support, and custom installation plans to guide you through the process. However, a licensed electrician is required to perform the final electrical connections and thermostat wiring to ensure safety and warranty compliance.

Was this helpful? Yes No

Yes, electric radiant floor heating can maintain a cozy 70°F even when outside temperatures drop well below zero. By heating the objects and people in a room directly, a properly sized and insulated system provides reliable, consistent warmth that outperforms traditional forced-air systems during extreme Midwestern winters.

Was this helpful? Yes No

Yes, radiant floor heating can be a primary heat source if its heat output exceeds the room's heat loss. For best results, we recommend using a 15-watt system, covering at least 80% of the floor, and ensuring the space is well-insulated. Use our Heat Loss Calculator to verify your specific needs.

Was this helpful? Yes No

Yes, you can add radiant heating to an existing slab using "over-the-slab" systems like TempZone™ Flex Rolls or Easy Mats. These low-profile electric systems are installed on top of the existing concrete using thinset or self-leveling underlayment, allowing you to add warmth without tearing out the original floor.

Was this helpful? Yes No

Yes, radiant floor heating is an excellent primary heat source for tiny houses in mild to moderate climates. Because tiny houses have small footprints, the 15-watt output of TempZone™ can easily maintain comfort while saving valuable wall space. Ensure the structure is well-insulated and use our Heat Loss Calculator to confirm.

Was this helpful? Yes No

Yes, bedroom floor heating can be a DIY project. Systems like TempZone Easy Mats or Environ Flex Rolls are designed for straightforward installation under various flooring types. While you can lay the heating elements and flooring yourself, you must hire a certified electrician to connect the system to power and install the thermostat.

Was this helpful? Yes No

A vapor barrier is essential for basement installations to prevent moisture from the ground from reaching your flooring. When installing radiant heat, the vapor barrier should be placed directly on the concrete slab before the insulation and heating system to protect the assembly from hydrostatic pressure and dampness.

Was this helpful? Yes No

Yes, insulating underlayment is highly recommended when installing floor heating over concrete. It prevents the slab from acting as a "heat sink," which draws heat away from the floor. Using insulation like CeraZorb® ensures faster heat-up times and significantly improves the energy efficiency of your system.

Was this helpful? Yes No

Insulation is critical when installing floor heating over concrete. Without it, the slab absorbs much of the heat, leading to slow warm-up times and wasted energy. Products like CeraZorb® provide a thermal break that directs heat upward into the flooring, maximizing comfort and reducing operating costs.

Was this helpful? Yes No

Yes, we strongly recommend installing insulation like ThermalSheet™ over concrete slabs. Concrete acts as a "heat sink," absorbing warmth that should go to your floor. Insulation directs the heat upward, significantly improving efficiency, reducing warm-up times, and allowing the system to function effectively as a primary heat source.

Was this helpful? Yes No

Underlayment is recommended for floating floors (laminate, LVP, wood) and installations over cold subfloors like concrete. It provides thermal insulation to prevent heat loss and improves system efficiency. For tile and stone, the system is typically embedded in thinset, so a separate underlayment is often unnecessary.

Was this helpful? Yes No

To prepare a basement for radiant heating, ensure the concrete subfloor is level, clean, and free of debris. It is highly recommended to install a thermal break, like WarmlyYours CeraZorb, over the slab to prevent heat loss into the ground. Finally, verify that your electrical panel has sufficient capacity for the system's requirements.

Was this helpful? Yes No

WarmlyYours TempZone™ Flex Rolls and Easy Mats deliver 15 watts per square foot, the maximum allowed by the National Electrical Code. This provides 25% more heating power than the 12-watt industry standard. TempZone™ Cable can be spaced to deliver between 8 and 15 watts per square foot depending on your needs.

Was this helpful? Yes No

The operating cost for electric floor heating is surprisingly low. On average, it costs about $0.05 to $0.10 per square foot per month to run a system for 8 hours a day. You can calculate your specific costs using our C$0.18/hr tool or by using the

Operating Cost Calculator for Floor Heating

Estimate your daily and monthly energy costs based on room size and local rates.
sq. ft.
¢/kWh
Estimated Cost
C$0.04
per hour
C$0.15
per day
C$4.50
per month
Rae Radiant

"Most homeowners are surprised how affordable radiant floor heating is to operate—often just pennies a day for a bathroom. It's the kind of everyday luxury that pays for itself in comfort!"

— Rae Radiant
on our website.

Was this helpful? Yes No

Radiant floor heating costs vary by system type and project size. Electric floor heating mats or cables typically range from $5 to $12 per square foot. Total project costs also include a thermostat (starting around $100) and installation labor. For an accurate estimate tailored to your room, use our

Operating Cost Calculator for Floor Heating

Estimate your daily and monthly energy costs based on room size and local rates.
sq. ft.
¢/kWh
Estimated Cost
C$0.04
per hour
C$0.15
per day
C$4.50
per month
Rae Radiant

"Most homeowners are surprised how affordable radiant floor heating is to operate—often just pennies a day for a bathroom. It's the kind of everyday luxury that pays for itself in comfort!"

— Rae Radiant
.

Was this helpful? Yes No

Because radiant systems have a thermal lag, you should increase your thermostat set point 12-24 hours before an extreme cold snap arrives. This proactive adjustment, combined with ensuring your home is well-insulated, helps your system maintain a steady, comfortable temperature without struggling to catch up.

Was this helpful? Yes No

Yes, electric radiant floor heating is ideal for basements because it warms the cold concrete slab and provides consistent heat from the ground up. In well-insulated finished basements, it can serve as the primary heat source, turning a typically chilly space into a comfortable, year-round living area.

Was this helpful? Yes No

Radiant floor heating can heat a sunroom if the space has high-quality insulation and double-pane glass. Since sunrooms have high heat loss, a 15-watt system is essential. In extremely cold climates or poorly insulated sunrooms, it is best used as a supplemental source to keep the floor comfortable.

Was this helpful? Yes No

Radiant heating is often more efficient because it eliminates the "blast and fade" cycles and noisy ductwork of forced-air furnaces. By providing steady, low-level heat that doesn't escape to the ceiling, it creates a more consistent "barefoot sanctuary" while potentially reducing your overall energy consumption.

Was this helpful? Yes No

Yes, radiant heating is highly efficient in cold weather. Unlike forced-air systems that lose heat through ductwork and rising air, radiant heat warms objects directly via far-infrared energy. This method is up to 45% more energy-efficient, providing consistent comfort while significantly lowering monthly heating costs in frigid environments.

Was this helpful? Yes No

Both 120V and 240V systems provide the same level of heat and comfort. The choice depends on the size of your project; 120V is typically for smaller areas like bathrooms, while 240V is more efficient for larger rooms. Always consult your electrician to ensure your home’s electrical panel can support the system’s requirements.

Was this helpful? Yes No

An uncoupling membrane like Prodeso provides a flexible layer between your subfloor and tile, preventing cracks caused by natural floor movement. It also offers waterproofing and vapor management, making it ideal for bathrooms. Plus, the membrane’s studs make cable installation fast and consistent without the need for staples or glue.

Was this helpful? Yes No

The best home features for cold climates include a simple gable roof to shed snow, covered entrances for protection, airtight triple-pane windows to prevent heat loss, and radiant heating systems. These features work together to maintain interior warmth, reduce energy bills by up to 25%, and ensure structural safety during harsh winters.

Was this helpful? Yes No

Most floor coverings work well over heated concrete slabs, including tile, stone, luxury vinyl tile (LVT), laminate, and engineered wood. Tile and stone are the most efficient as they conduct heat naturally. Always check with the flooring manufacturer to ensure their specific product is rated for use with radiant heat.

Was this helpful? Yes No

In-slab radiant heating involves embedding heating cables, like WarmlyYours Slab Heating cables, directly into a new concrete pour (usually 2-4 inches thick). This turns the entire slab into a thermal mass that radiates consistent, long-lasting heat, making it ideal for basements, garages, and home additions.

Was this helpful? Yes No

For maximum barefoot comfort, most systems are designed to reach a floor surface temperature of 80°F to 85°F. This "sweet spot" ensures your room stays warm through efficient radiation while keeping the floor perfectly comfortable to walk on, even during the coldest months of the year.

Was this helpful? Yes No

Installing floor heating under carpet involves placing Environ heating mats over a pad and then covering them with the carpet. The process typically includes:

  • Installing a specific radiant-compatible carpet pad.
  • Laying out the Environ mats according to your plan.
  • Securing the mats with tape.
  • Having a professional installer lay the carpet over the mats.
Was this helpful? Yes No

A heat loss calculation is essential to ensure your radiant system produces more BTUs than your room loses to the outside environment. This professional assessment guarantees your system has the necessary power to serve as your primary heat source, providing peace of mind during record-breaking cold.

Was this helpful? Yes No

Most systems provide only 12 watts per square foot, which often lacks the power for primary heating in cold climates. WarmlyYours TempZone™ delivers 15 watts—a 25% increase. This higher output allows the system to overcome heat loss more effectively, providing reliable primary warmth even when outdoor temperatures drop.

Was this helpful? Yes No

A floor sensor is essential because it monitors the actual temperature of your floor, preventing overheating and ensuring energy efficiency. It allows your thermostat to maintain your desired comfort level precisely. WarmlyYours even includes a backup sensor with our systems to provide long-term peace of mind and reliability.

Was this helpful? Yes No

Bedroom floor heating is popular because it provides consistent, draft-free warmth that enhances comfort in a space where people often walk barefoot. It eliminates cold spots, operates silently, and is highly energy-efficient. Additionally, radiant heat doesn't circulate dust or allergens, contributing to a healthier sleeping environment compared to forced-air systems.

Was this helpful? Yes No