Lennox 27A33 Heat Element

The Lennox 27A33 (model ECB47-20CB-P) is a high-capacity 20kW electric heat kit designed specifically for integration with Lennox air handlers. This OEM-spec heating assembly provides critical supplemental and auxiliary heat support, ensuring optimal thermal performance when ambient temperatures drop below the heat pump's balance point. Built for high-amperage duty cycles, the Lennox 27A33 heat element features a multi-stage configuration that allows for precise temperature control and efficient heat rise without compromising airflow static pressure. This HVAC auxiliary heat strip is the industry standard for contractors servicing regional residential and light commercial equipment, offering a direct-fit solution for ECB47 series cabinets. Utilizing high-grade resistive wire and robust thermal limit protection, it maintains electrical load stability across the sequences. Whether you are performing a field-installed upgrade or a critical service replacement, this Lennox electric furnace heater ensures the system meets the calculated heating load requirements and restores emergency heating functionality to the air handler assembly.

Key Benefits

• Genuine Lennox 27A33 20kW capacity for high-demand emergency and auxiliary heating.
• Direct compatibility with ECB47-20CB-P air handler configurations for seamless mechanical and electrical fit.
• Engineered to maintain factory-specified airflow and static pressure requirements within the blower cabinet.
• Provides reliable supplemental heating during defrost cycles or low-ambient heat pump operation.
• Heavy-duty resistive elements built for long-term electrical stability and consistent heat output.

Common Questions

Which air handlers are compatible with the Lennox 27A33?
This 20kW heat kit is specifically designed for use within the Lennox ECB47 series air handler cabinets and matched Lennox HVAC split systems.

Is this 20kW heat element suitable for emergency heat mode?
Yes, the Lennox 27A33 is engineered to function as the primary heat source during emergency heat settings or when the outdoor unit is locked out.

Does this unit require a specific circuit breaker configuration?
As a 20kW heater, it typically requires a dual-circuit power supply or a large single-point power source depending on your local electrical code and air handler nameplate data.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.