Lennox 10W49 Electric Heat Kit

The Lennox 10W49 is a high-performance 10kW electric heat kit engineered for field installation within compatible air handler units and packaged systems. This OEM Lennox heat kit, also identified by model PHK10BP-1, utilizes helix-wound nichrome elements positioned directly in the air stream. This design ensures immediate thermal transfer and maintains low element temperatures, which significantly extends the service life of the heating assembly. Operating at 208-240V single-phase power, it delivers approximately 34,100 BTUH at 240V, making it a reliable solution for supplemental or primary heating requirements in residential and light commercial applications.

For the installing contractor, this kit simplifies the process with a factory-assembled control box and pre-wired terminal blocks. The unit features a primary limit control with automatic reset and a supplemental thermal cutoff for robust over-temperature protection. When performing a Lennox 10W49 installation, ensure the blower speed is adjusted to meet the minimum CFM requirements specified in the air handler data. This HVAC electric heater is designed for a precise fit, eliminating the field-drilling or modification common with universal aftermarket parts.

• Optimized Heat Transfer: Exposed nichrome heating elements provide instantaneous heat with high-efficiency energy conversion.
• Integrated Safety Controls: Includes both automatic reset limit switches and supplemental thermal cutoffs to prevent overheating.
• Contractor-Friendly Installation: Features a terminal block for streamlined field wiring and is factory-vetted for specific Lennox cabinet internal mounting.
• Multivolt Compatibility: Operates on 208/230/240V single-phase 60Hz systems; transformer leads are factory-set for 240V but easily adjustable for 208V tasks.

Common Questions

What is the required breaker size for the Lennox 10W49?
When configured for 10kW at 240V, the system typically requires a 60-amp circuit breaker. Always verify the Minimum Circuit Ampacity (MCA) on the specific air handler nameplate, as blower motor draw must be factored into the total circuit calculation.

Which Lennox units are compatible with this 10kW heat kit?
The 10W49 is commonly used with LRP, PRP, and Q series packaged units, as well as specific CBA series air handlers. Consult your unit’s service manual to confirm the PHK or ECB series designation matches the internal rail dimensions.

Is this kit a direct replacement for discontinued ECB29 models?
While the 10W49 (PHK10BP-1) serves as a primary 10kW heating solution, always check the cabinet footprint and plug configuration if you are replacing an older 19F08 or 13T83 kit to ensure terminal block alignment.

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.