Choose electric or hydronic heat, automatic snow detection, coverage zones, drainage and smart-home controls before concrete, asphalt or pavers lock the design in place.
Both can melt snow effectively when engineered correctly. The right answer depends on heated area, available gas/electrical capacity, surface construction, mechanical space and operating priorities.
| Decision | Hydronic | Electric | Ask before choosing |
|---|---|---|---|
| Energy infrastructure | Boiler/heat source, fuel, pumps, mixing and controls | Service capacity, feeders, contactors and protected circuits | What utility capacity exists now and what else must it serve? |
| Best-fit scale | Can be attractive for large or multiple areas with suitable plant | Can be straightforward for walks, stairs, tire tracks or smaller zones | Full surface, traffic path or only critical areas? |
| Mechanical complexity | Tubing, fluid, air elimination, expansion, mixing and manifold | Cable/mats, cold leads, junctions, relays and electrical protection | Who will commission and maintain it long term? |
| Surface coordination | Tubing depth, spacing, pressure test and pour protection | Cable spacing, resistance/insulation tests and installation protection | Concrete, asphalt or paver assembly and movement joints? |
| Failure/service | Fluid, pump, valve, boiler and tubing diagnostics | Circuit, cable, sensor, contactor and ground-fault diagnostics | What remains accessible after the surface is finished? |
| Backup power | Fuel may be available, but pumps/controls still need electricity | Large electrical load may be impractical for generator backup | Is snow melt a backed-up load, a shed load or unavailable in outage? |
Best visual result and walking/driving flexibility, but highest installed capacity and operating energy. Plan where meltwater leaves the heated field.
Reduces heated area and load, but does not create a fully clear walking surface and may leave snow between or outside the tracks.
Prioritize front walk, steps, accessible route, steep section, apron, gate track or loading area based on real risk and budget.
Do not plan only for vehicle tires. Trace the paths used by passengers, deliveries, trash bins, service technicians, gates and pedestrians.
Sensor recognizes moisture/snow and surface or outdoor temperature.
Controller checks warm-weather shutdown, cold cutout, schedule and operating mode.
System raises slab temperature early enough for the design storm and surface.
Heat is modulated or staged while equipment and slab limits remain protected.
Run-on time helps clear residual moisture without unnecessary indefinite operation.
Native controller ends the cycle and Control4 can show supported status or alert exceptions.
The plan coordinates heated boundaries, cable or tubing spacing, junctions, leads, sensors, drains, movement joints, penetrations and the route back to the mechanical/electrical equipment.
Place detection where it sees the weather that matters—not under an overhang or in an unusual drift unless intentionally designed.
An in-slab snow/ice sensor can detect surface conditions and slab temperature for automatic operation.
The socket belongs in the pour plan so the sensor can be installed correctly and serviced without destroying the slab.
Large, critical or differently exposed areas may justify multiple sensors or separate zones when the controller supports them.
The current tekmar 093 kit includes the 090 in-ground sensor and 091 socket, with moisture/snow detection and slab-temperature feedback. Exact placement and cable requirements must follow the selected controller and sensor manuals.
Calculate heated area and design output, then confirm the boiler or electrical service can deliver it with other loads operating.
Holding a slab warm can improve response but uses energy. Compare automatic detection, forecast preheat and idle settings realistically.
Divide the property so critical paths can operate first or independently when the heat source or service cannot support everything at once.
Use supported runtime, electrical, fuel or flow data to understand actual events; do not estimate savings from app status alone.
Drain meltwater away from unheated walks, streets, door thresholds, gate tracks and low spots where it can freeze again.
Temperature, mixing, return-water and equipment protection stay in the listed snow-melt/mechanical controls.
Use required ground-fault protection, contactors, disconnects, cable tests, markings and overcurrent protection designed by the electrician.
Coordinate reinforcement, joints, base, insulation, cover depth, paver/asphalt assembly and repair procedures with the manufacturers.
Keep a backup plan for outage, equipment fault, snowfall beyond design, delayed start and unheated areas. Automation is not a guarantee.
tekmar product specifications state these are not safety/limit controls. Required independent limits and safeties remain in place.
Identify full-clear, tire-track or critical-path coverage; storm expectation; response time; surface; slopes and accessibility needs.
Engineer electric service or hydronic output, zones, priority, backup-power behavior and realistic operating cost.
Lock sensor, tubing/cable, joint, drain, edge, penetration and lead routes into the structural/site plan before construction.
Plan controller, relay/contactors or boiler equipment, disconnects, manifold, network and service clearances in protected locations.
Confirm exact driver or gateway, start/stop method, zones, status, faults, timing, internet dependency and native-app ownership.
Record resistance/insulation or tubing pressure tests at every required construction stage and photograph the complete as-built layout.
Test sensor detection, zone operation, slab feedback, shutoff/run-on, equipment protection, Control4 status and failure alerts.
Document seasonal startup, sensor cleaning, glycol/mechanical or electrical service, emergency stop and manual snow-removal plan.
“The snow-melt controller watches the slab and weather, then safely operates the boiler or electric heat. Control4 gives you one clean place to see the system, start a timed override and receive an alert. The performance comes from the hidden design—coverage, heat capacity, sensors, drainage and construction—not from the app.”
Send Denali Tech the site and hardscape drawings, heated-area goal, surface assembly, drainage, mechanical/electrical load information and selected snow-melt equipment. We can coordinate the Control4 experience before the pour makes sensor, conduit and zone changes expensive.