In-Floor Heating for Concrete Slab Floors


Are you considering installing heated concrete floors in your home? Even if you aren't building a new home, perhaps you're thinking about adding a sunroom or garage to your house. If you want to enjoy your sunroom in all four seasons, or comfortably enjoy the beauty of a trendy new polished, stamped or stained concrete floor, you'll appreciate radiant heating under foot.


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Floor Heating Systems for Concrete Slab Floors

With WarmlyYours' concrete heating cables and mats, you can design your concrete floors to be as warm and functional as they are attractive.

Slab Heat Cable Heating System Banner

Our most popular cut-and-turn roll for easy installation.


  • 10 Year Warranty
  • $8 - $16 per sq. ft.
  • 20 Watts per sq. ft.
  • Available in 120/240 VAC
Slab Heating Mat Heating System Banner

Targeted heat coverage designed for small areas.


  • 10 Year Warranty
  • $10 - $12 per sq. ft.
  • 20 Watts per sq. ft.
  • Available in 120/240 VAC
Request a Free SmartPlan!

Provide us with a sketch of your room that includes dimensions and other relevant information and you’ll receive a free SmartPlan within one business day.


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Roof & Gutter Deicing Systems avoid costly damage and prevent trapped water in your home.

Why Install Radiant Floor Heating?

Electric in-floor heating systems generate an even heat throughout your home and will not disturb dust, reducing the chance of possible allergic reactions. What's more, radiant heated floors reduce noise levels and the amount of dry air in your home. There are other benefits to floor heating as well, including financial perks, as they are inexpensive to install and typically don't add more than a quarter to electric bills.

  • Easy to Install Whether you’re using a mat or cable, we've made installation as simple as possible.
  • Affordable Most systems are inexpensive to run and require no regular maintenance.
  • Easy-to-Use Thermostats The secret to any great heating system is a great control.
  • Saves Energy Radiant heat has higher levels of energy efficiency than most traditional systems.
  • Safe cULus listed.
  • Clean Heat Doesn't disturb pollen, dust or other allergens like forced-air systems.

Why Choose WarmlyYours?

WarmlyYours provides free design services to make sure that customers purchase the heating system that best meets their project requirements. Depending on the floor type and the shape and size of a room's layout, the size and placement of heating mats will differ.

  • Free Installation Plan We provide a free, no-obligation SmartPlan™ with every quote, often within 1 day.
  • 24/7 Installation Support We're here to answer your questions every day – year round – round the clock.
  • Easy-to-Use Thermostats The secret to any great heating system is a great control.
  • Fast Shipping & Simple Returns With same day shipping nationwide, we're committed to getting your order to you on time. Plus, we don't charge restocking fees for unused products.
  • Unbeatable Warranty All of our heating systems are backed by our industry leading warranty, with coverage for both labor and materials on most installations.

Frequently Asked Questions


Can the floor be waterproofed and still have floor heating?

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.

Can the floor heating be set to turn on at certain times when we know we will use those areas and need heating?

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.

Can you heat under the appliances, fixtures, or furniture in a laundry room, mudroom, or utility room?

No, it is recommended that floor heating only be installed in the areas that you will walk on. Heat can become trapped if installed under objects that do not offer enough clearance for air to circulate (such as a washer or dryer).

Can you use a sunroom in the winter?

Yes, sunrooms can be used in the winter, just activate your floor heating or radiant panel and turn your sunroom into a 4-season room. You will notice a tremendous difference in the room comfort, especially with the thermostat set to maintain a desired ambient temperature. WarmlyYours thermostats will do the work for you by energizing the floor for longer cycles.

How can I make my room warmer without a heater?

Floor heating will typically add the most heat to supplement an existing heating source and it will not take any extra space since it is embedded in the floor. If you are not remodeling your floors but have some open wall space, you should mount a radiant panel. For the most effective results, install the panel so that it points toward the area where you will spend most of the time.

How do you keep a sunroom warm in the winter?

Sunrooms can be very cold during the winter months. While a furnace may push some warm air into the room, the large number of windows, exterior walls, and other causes of heat loss in a sunroom will typically keep it from having a comfortable temperature level. Floor heating and radiant panels will add radiant heat, which the human body absorbs faster than other forms of heat, to the room so that it feels warm even at lower temperatures.

How is the slab heating system controlled?

You can control your slab heating system with any WarmlyYours nSpiration Series thermostat. Depending on the size of your project, you may also need to add a relay or nJoin power module.

How much additional height will this solution add from the top of the slab to the bottom of the finished floor?

The slab heating cable sits in the middle of concrete pour. Here are the layers for this application from bottom to top:

  • 8-10" of compressed crushed rock aggregate
  • 2" polystyrene insulation
  • 2 - 3" layer of concrete
  • Rebar and/or reinforcing mesh
  • Attach slab heating cable to rebar/mesh
  • Final layer: 2-3" or concrete as final flooring surface

How quickly can I get the slab heat cables/mat after I order?

In-stock items will ship the same day if you place your order before 4:00 PM CST.

What are the power requirements?

The requirements are: 20 watts per square foot foot (with 3" spacing) without a floor covering; or 15 watts per square foot (with 5" spacing of cable only) with a floor covering. To calculate your exact power requirements, multiply the square feet by 20 or 15, as listed above and then divide by the voltage (120V or 240V) to arrive at Amps.

What happens if I accidentally cut a wire during the installation?

Stop installation, box out a 3"×3" area surrounding the damaged area and call tech support at (800) 875-5285.

What is a good choice, or watt density, for supplemental heat?

Supplemental heat can be addressed by changing the spacing on cable installs. Floor location in the house is very important when considering adding supplemental heating to a floor. For example: If heating a second story floor, over a heated space, cable at 4" spacing can be used. The same type of heating over an unheated space would probably be done with TempZone Flex Rolls or TempZone Cable at 3" spacing. All heating is considered supplemental unless a heat loss calculation is done.

What is the layer order I must install it in?

The layers for the full installation are as follows:

  • Bottom: 8-10" of compressed crushed rock aggregate (may already exist)
  • 2" polystyrene insulation
  • 2-3" layer of concrete
  • Rebar and/or reinforcing mesh and attach the cable or mat
  • Top: Pour a 2-3" layer of concrete as the final flooring surface

Call tech support at (800) 875-5285 to customize this to your unique application.

What is the polarity of this radiant heating product?

Electric-resistance heating cables and systems have no polarity. This includes all current WarmlyYours heating elements.

What is your cost per square foot for the material?

The cost for material per square foot is approximately $10.00-15.00 per square foot.

Where do you install the slab heating cable?

You should install the cable 2-3" below the finished surface, and attach it to rebar and/or reinforcing wire mesh to secure the cable in place.

Who is qualified to install the cables or mat?

Any trade professional is qualified to layout cables and/or mats; electricians must make the electrical connections and test the wire; you can hire a concrete contractor to install the concrete for you.