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Lennox 4–5 Ton Side Discharge Ducted Heat Pump System

(1 customer review)
Durable Design
Fast & Reliable
Quiet Operation
Energy-efficient
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Attribute Details
Make Lennox
Series Elite (EL18KSLV)
Model EL18KSLV-060-230
Capacity 4–5 Ton (Selectable)
Cooling Capacity 48,000 – 60,000 BTU
Heating Capacity Up to ~56,000 BTU
Product Type Side Discharge Ducted Heat Pump
Compressor Type Inverter Compressor
Compressor Stage Variable Capacity
Energy Efficiency Up to ~19–19.5 SEER2
Heating Efficiency Up to 10 HSPF2
Refrigerant Type R-454B
Installation Type Split / Ducted System
Application Residential
Operation Heating & Cooling
Voltage 208–230V, 1 Phase
Noise Level As low as ~54 dB
Airflow Design Side Discharge (Horizontal)
Build Quality Slim, Weather-Resistant Cabinet
Suitable For Large Homes
Usage Areas Homes, Urban Installations
Warranty 10 Years Parts (Registration Required)

The Lennox 4–5 Ton Side Discharge Ducted Heat Pump System is a high-capacity, energy-efficient solution designed for large residential homes and demanding comfort needs. With a flexible 4–5 ton (48,000–60,000 BTU) capacity, this system delivers powerful heating and cooling performance while maintaining consistent indoor comfort.

Built on Lennox’s advanced side discharge platform (Elite Series EL18KSLV), this unit features a compact horizontal airflow design, making it ideal for space-constrained installations such as narrow side yards or zero-lot-line homes.

The system is powered by a variable-capacity inverter compressor that continuously adjusts output based on real-time demand. This ensures precise temperature control, improved humidity management, and significantly lower energy consumption compared to traditional systems.

With efficiency ratings up to ~19–19.5 SEER2 and 10 HSPF2, the unit offers excellent energy savings and may qualify for ENERGY STAR® incentives.

Designed for quiet performance, the system operates at sound levels as low as ~54 dB, making it one of the quietest options in its category.

It uses next-generation R-454B refrigerant, which reduces environmental impact while maintaining strong performance.

With its compact footprint, premium efficiency, and powerful capacity, the Lennox 4–5 Ton Side Discharge Heat Pump is an ideal solution for modern, large residential installations.


Key Features

High Capacity 4–5 Ton (48,000–60,000 BTU)
Ideal for large homes and high-demand heating and cooling requirements.

Side Discharge Compact Design
Perfect for tight installation spaces like urban homes or narrow yards.

Variable Capacity Inverter Technology
Adjusts output continuously for maximum comfort and efficiency.

Up to ~19–19.5 SEER2 Efficiency
High efficiency performance with lower energy costs.

Quiet Operation (~54 dB)
Ultra-quiet system design for improved comfort.

Heating & Cooling System
All-in-one year-round climate control solution.

R-454B Refrigerant (Next-Gen)
Lower environmental impact and future-ready compliance.

Smart Thermostat Compatibility
Works with Lennox smart thermostat systems.

Durable Weather-Resistant Cabinet
Designed for long-term outdoor performance.


Why Buy Lennox 4–5 Ton Side Discharge Heat Pump

The Lennox 4–5 Ton Side Discharge Heat Pump is an excellent choice for homeowners needing a powerful, efficient, and space-saving HVAC solution. With inverter technology, ultra-quiet operation, and premium efficiency, it is ideal for large homes and modern installations where performance and space optimization are both critical.

Customer Reviews

1 review for Lennox 4–5 Ton Side Discharge Ducted Heat Pump System

  1. Liam Carter

    Got the Lennox 4–5 Ton Side Discharge Heat Pump installed last month. Works well so far and the Jimmy HVAC team handled the install cleanly.

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