Guides

Guides

Sizing, wattage, circuit planning, electrical safety and off-season care — the practical questions, answered from published specifications and code.

3 pages

• How many heated mats fit on one 15 A or 20 A circuit?NEC 426.28, the 80% continuous-load derate, and HeatTrak's 13 A power-unit ceiling — the circuit math most mat retailers never publish.
• What a heated driveway actually costs to run, by zonePer-storm and per-season electric driveway operating cost, computed from NOAA/ECCC snowfall normals, EIA January 2026 rates, and the claimed 2 in/hr melt rate.
• How many watts per square foot do snow-melting mats need?No portable mat manufacturer publishes total wattage — only amps. We show what embedded systems publish and why volts x amps isn't a substitute.

Next

• What your snow zone actually gets
• Every mat we hold specs for
• Calculators
• How we work out these numbers