Electric Snow Melting Systems: How They Work & What to Buy

If you’ve spent years shoveling your driveway at 6am before work or worrying about guests slipping on an icy walkway, a permanently installed electric snow melting system changes everything. No more shoveling. No more salt damage to your concrete or pavers. No more liability. The surface stays clear automatically — before, during, and after snowfall.

Here’s everything you need to know.

How Electric Snow Melting Works

Electric snow melting systems use resistance heating cables embedded beneath your driveway, walkway, or patio surface. When electricity passes through the cable, it generates heat that conducts upward through the concrete, asphalt, or pavers above — melting snow on contact before it can accumulate.

The system is completely invisible in the finished surface. There are no moving parts, no chemicals, and no maintenance. Once installed, it operates quietly for decades with virtually zero upkeep.

Automatic activation is the most popular configuration. An outdoor moisture-and-temperature sensor (like the Heatizon M326 series of activators) monitors conditions continuously. When it detects moisture and the temperature drops below 37°F, the system switches on automatically. Once precipitation stops, the system continues running for about 90 minutes to dry the surface completely, then shuts off on its own.

You can also run SnowMeltz on a manual switch — useful for smaller areas or budgets where you want on-demand control without the sensor cost.

What Surfaces Can Be Heated?

SnowMeltz systems work under:

• Concrete — The most common installation. Heating mats are placed on a prepared base and poured over with concrete. Joint jumpers protect the cable where it crosses control joints.
• Asphalt — Mats are installed on a prepared gravel base before the asphalt is poured over. No jumpers required.
• Pavers — Mats are placed in a sand bed beneath pavers. The flexible mat conforms to the layout. No jumpers required.

How Much Does a Snow Melting System Cost to Run?

Operating cost depends on three variables: your local electricity rate, the size of your heated area, and how much it snows in your region.

As a rough estimate: a SnowMeltz system running at 37 watts per square foot, activated automatically, costs roughly $0.10–$0.20 per square foot per season in a moderate snow climate. A 100 sq ft heated walkway might cost $10–$20 per winter to operate.

For comparison, consider what you spend annually on snow removal services, ice melt products, and the time value of shoveling — plus the long-term cost of salt damage to your concrete surface.

The M326 activators only run the system when conditions actually warrant it, keeping operating costs as low as possible.

Choosing the Right Kit Size

SnowMeltz kits are sized by square footage. To find the right kit:

1. Measure the length and width of the area you want to heat
2. Multiply to get square footage
3. Choose the kit that is slightly smaller than your area (10% smaller is a good metric)
4. For multiple separate areas (e.g., driveway + front walk), you can combine kits on the same circuit — up to the circuit’s amperage limit

Available kit sizes:

• 10–45 sq ft — Small walkways, steps, entry paths
• 50–130 sq ft — Single-car driveway apron, large walkway, patio
• 110–185 sq ft — Two-car driveway apron or medium driveway section
• 200–380 sq ft — Larger driveway areas, parking pads
• 410–1,040 sq ft — Full driveways, commercial walks, large areas

Need a custom size? Contact Heatizon for custom sizes.

Electrical Requirements

Standard SnowMeltz kits run on 240V (residential standard). Each kit requires one or more 30-amp dedicated circuits from your electrical panel. The system must be wired by a licensed electrician — the mat installation itself is DIY-friendly, but the electrical connection is not.

Commercial and industrial applications can use 208/277V systems at 37 or 50 watts per square foot for faster melt performance.

Manual vs. Automatic — Which Should You Choose?

Manual activation (SnowMeltz Basic): You turn the system on with a switch when snow is forecast, and off when conditions clear. Lower upfront cost, requires you to remember to activate it.

Automatic activation (with M326A or M326ARS): The sensor monitors temperature and moisture and handles everything automatically. Set it and forget it. The M326ARS model has a remotely mountable moisture sensor — useful if your main controller location doesn’t get direct precipitation exposure.

Weather Predictive: Pair our new STORMSENSE module with a the M326 series activators and STORMSENSE will activate your snow melting system based on incoming weather. Don’t worry, if the weather changes course, STORMSENSE deactivates the system, or lets the M326 activator take over once it detects moisture/temperature.

For most homeowners, automatic activation pays for itself in convenience and ensures the system runs correctly even when you’re away from home.

Why Buy SnowMeltz from MoreHeat.com?

MoreHeat.com is the factory-direct store for Heatizon Systems, the Utah-based manufacturer that has made electric radiant heating since 1979. Buying direct means:

• Factory-direct pricing — no dealer markup
• Free ground shipping on all SnowMeltz kits
• US-based technical support — call 888.239.1232 to talk to a Heatizon expert before you buy
• Industry-leading 5-year warranty on SnowMeltz systems

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