Electric Heat Kits for Ducted Air Handlers
Never get caught in a deep freeze without backup. Heat strips for air handlers are essential components for central ducted heat pump systems operating in severe winter climates. When outdoor temperatures drop past the operational limit of your compressor, an electric heat kit instantly provides vital emergency heat for heat pump operations. From a supplemental 5kw heat strip to a massive 20kW air handler heater coil, explore our OEM-certified heating modules to guarantee your family's comfort.
- ❄️ Defrost Cycle Support
- 🔌 5kW to 20kW Options
- 🛡️ OEM Compatibility
- 🔥 Instant Warm Air
The Role of an Auxiliary Heat Strip
While modern inverter heat pumps are incredibly efficient, extracting heat from sub-zero air becomes increasingly difficult. An auxiliary heat strip acts as the ultimate safety net for your central ducted system.
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Defrost Cycle Comfort
When a heat pump enters "defrost mode" to melt ice off the outdoor condenser, it temporarily blows cold air inside. The air handler heater coil activates simultaneously to ensure you only feel warm air through your vents. -
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Emergency Heat (EM Heat)
If your outdoor compressor fails during a blizzard, the thermostat will activate the HVAC electric heater strips as a standalone furnace, keeping your pipes from freezing until repairs are made. -
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Seamless Integration
These kits slide directly into the pre-designed slots inside your central air handler cabinet, requiring no additional ductwork or external housing.
kW to BTU Sizing Guide
| Heat Strip Size (kW) | Approx. Heating Output | Matched Air Handler Tonnage |
|---|---|---|
| 5kW Heat Strip | ~17,060 BTU/hr | 1.5 to 2.0 Ton Systems |
| 8kW Heat Strip | ~27,296 BTU/hr | 2.0 to 2.5 Ton Systems |
| 10kW Heat Kit | ~34,120 BTU/hr | 2.5 to 3.0 Ton Systems |
| 15kW Heat Kit | ~51,180 BTU/hr | 3.5 to 4.0 Ton Systems |
| 20kW Heat Kit | ~68,240 BTU/hr | 4.0 to 5.0 Ton Systems |
🎯 Building a Complete Central System?
Don't forget to bundle! Browse our Central Ducted Systems section to find perfectly matched outdoor heat pumps, indoor air handlers, and compatible heat strips.




























