Liberty Electric Products

Low-Voltage Systems for Snow Melting

Our patented low-voltage radiant heating mat STEP Snowmelt is a durable, yet thin (3/64") element. These polymer mats come in different widths and are made of a homogeneous, semi-conductive polymer, which by nature is self-regulating.

This technology (PTC nano-technology) allows the heating elements to heat with maximum power in cold environments and use less electricity as they warm up. This minimizes power consumption and reduces your snow melt or heating costs by 30-60% compared to conventional cable systems, and it comes with a 20-year limited warranty. This system uses a step-down transformer in line with the system to convert the input line voltage power low-voltage so it can operate on up to 277V, with no more than 65V running through the polymer mat.

STEP Warmfloor operates on 24V, cutting your energy consumption in half when compared to other electric radiant systems. Because the system operates off of 24V, this is very helpful in older homes which don't have enough power (amperage) in their service for traditional radiant systems. It is also very durable and can be walked on during installation, and the plastic can be nailed or stapled through with no effect, provided the conductive flat bus braids running along either side are not damaged.

These systems can be used for:
  • Class I (snow free ratio 0): Designed not to melt snow while it is falling, but afterwards
  • Class II (snow free ratio 0.5): 50% of snow is melted while falling, the rest afterwards
  • Class III (snow free ratio 1): All snow and ice is melted while falling

STEP Warmfloor is certified by Greener Product, which confirms the product complies with the LEED, LEED for Homes, and NAHB standards and may earn credits that contribute to certification under green building rating systems, such as LEED, LEED for Homes and NAHB.

The PTC heater is a homogeneous, flat, thin, strong, flexible mat made of a unique polymer blend that heats when electricity passes through it:

PTC Heater Element Diagram

Roof and Gutter Deicing

Low-voltage flat PTC heating mat designed to be installed underneath the roof shingles, so there is no need for the V shape wire hanging from your roof. The heating elements are protected by a dielectric insulation so the heating element can be installed under all types of roofing material, including metal roofs along with being delivered in a roll so that they can be cut to size and field wired on the job site for easy installation.

Compatible with shingle and metal roofs with a 10-year warranty, they are available for 120, 208, or 240 volt systems, and the elements will not be affected if they are stapled or cut through. In addition, the material is flexible so that it can be bent around the soffit to ensure that the snow and ice doesn't built up at the junction of the roof and the gutter per below.

Low Voltage Roof and Gutter Deicing

Driveway/Sidewalk/Stair Snow Melting

The patented low-voltage radiant heating mat STEP Snowmelt is a durable and thin element made of a homogeneous, semi-conductive polymer. This self-regulating technology (PTC nano-technology) allows the heating elements to heat with maximum power in cold environments and use less electricity as they warm up. This minimizes power consumption and reduces your snow melt costs by 30-60% compared to conventional cable systems, and it can also be run on solar or wind power.

STEP Snowmelt is designed to melt snow and ice on entrances, walkways, driveways, ramps, patios, etc. The snow melt system eliminates shoveling snow and protects pedestrians from slippery ice- or snow-covered driveways and sidewalks. The controller made specifically for this system can be used in snowmelt mode, which is when the thermostat is being used to control the elements as the external temperature sensor installed in the concrete or on the roof reads the ambient temperature, and the set temperature is adjustable between 32°-41°F/0°-5°C.

Key benefits with STEP Snowmelt:
  • STEP Snowmelt provides an even, low temperature over a larger surface avoiding expansion and contraction in the concrete
    • Cables crack the concrete due to difference of temperature
  • STEP Snowmelt can cross expansion joints (cables cannot)
  • Save costs with STEP Snowmelt
    • Cables need to install 2.5 times more power

Floor Heating

STEP Warmfloor is approved for use with any non-conductive floor covering including natural stone, ceramic and porcelain tiles, hardwood and laminates, and carpet.

More efficient heat distribution: When installed, the 12" wide elements cover more than 60% of the floor, thereby warming evenly the floor with a lower temperature.

Elements run at a low even temperature: With a reduced operating temperature there is less heat loss to the ground.

Elements act like a floor sensor: The STEP Warmfloor radiant heating element is self-regulating, which means that when the ambient temperature increases, the electrical resistance increases, and the consumption of electricity decreases.

Heat where and when you want: With Step Warmfloor thermostats you can individually zone every room and/or use the programmable thermostat to adjust the temperature to your specific needs.

Install directly under the floor cover: STEP Warmfloor low-voltage system can be placed safely closer to the floor surface than any other heating system.


Low Voltage Floor Heating


View the Nano Poly Carbon PTC Heater Presentation

Nano Poly Carbon PTC Heater Presentation

Download the Nano Poly Carbon PTC Heater PDF Presentation


Design Services

Let us work with you or your contractor to design the system that fits your specific application perfectly. Contact us today for more information.


Surface Snow Melting Form

Enter you name and email address to access the PDF document.

Heating Cables Webinar