Merit® Heat Pumps: Advanced Comfort and Efficiency
Lennox Merit® heat pumps are engineered to provide exceptional comfort and energy savings. They feature a precision-balanced, direct drive fan for quiet operation and high efficiency. The robust PermaGuard™ cabinet offers superior protection against rust and corrosion, ensuring long-lasting durability. Constructed with high-quality materials and proprietary designs, Lennox® units are built for enhanced safety and ease of installation. The fan and blades are optimized to improve air circulation while minimizing noise. These heat pumps are also dual-fuel compatible with Lennox furnaces, allowing for flexible operation and cost savings.
Model Comparison
| Model | Energy Efficiency (SEER/HSPF) | Stages Of Cooling | ENERGY STAR® Certified | Sound Rating* | Quantum™ Coil | Removes Humidity From The Home | 5-Year Limited Warranty On Covered Components |
|---|---|---|---|---|---|---|---|
| 16HPX (Mid-Efficiency, Two-Stage Heat Pump) |
Up To 16.50 SEER / 9.50 HSPF | Two-Stage Compressor | As Low As 74 dB | ✔️ | Higher Removal Rate | ✔️ | |
| ML17XP1 (Standard-Efficiency, Single-Stage Heat Pump) |
Up To 18.60 SEER / 10.60 HSPF (17.00 SEER2 / 8.50 HSPF2) |
Single-Stage Compressor | ✔️ | As Low As 74 dB | ✔️ | High Removal Rate | ✔️ |
| ML16XP1 (Mid-Efficiency, Single-Stage Heat Pump) |
Up To 17.00 SEER / 10.00 HSPF | Single-Stage Compressor | ✔️ | As Low As 76 dB | ✔️ | High Removal Rate | ✔️ |
| ML14XP1 (Standard-Efficiency, Single-Stage Heat Pump) |
Up To 16.00 SEER / 8.20 HSPF | Single-Stage Compressor | ✔️ | As Low As 76 dB | ✔️ | High Removal Rate | ✔️ |
* Sound rating is equivalent to the sound of an average radio or TV audio at 76 dB.
Understanding Heat Pump Operation
The efficiency and performance of heat pumps can be understood by examining their operational stages:
Single-Stage: The unit operates either fully on or fully off, resulting in noticeable temperature swings. This is typical for basic systems.
Two-Stage: The unit runs at either a low or high speed. It typically operates at the lower speed for approximately 80% of the time, providing more consistent comfort and efficiency.
Variable-Capacity: The unit primarily operates at a low capacity, modulating its output to use only the minimum energy required to maintain the desired comfort level. This offers the highest level of efficiency and comfort.
Key Features Explained
Seasonal Energy Efficiency Ratio (SEER)
This rating indicates a heat pump's cooling efficiency. A higher SEER rating signifies greater energy efficiency and lower electricity bills during cooling seasons.
Heating Seasonal Performance Factor (HSPF)
HSPF is a heating efficiency rating for heat pumps. A higher HSPF rating leads to reduced energy consumption and increased energy savings over the system's lifespan during heating seasons.
Dual-Fuel Compatibility
This feature allows an HVAC system to pair an electric heat pump with a gas furnace. The system intelligently alternates between fuel sources to optimize comfort and cost savings based on outdoor conditions and energy prices.
ENERGY STAR® Certified
HVAC equipment bearing the ENERGY STAR label meets or surpasses federal guidelines for energy-efficient performance, indicating it is more efficient than standard models.
Quantum™ Coil
The exclusive Quantum™ Coil is crafted from a proprietary aluminum alloy. This material enhances resistance to corrosion, leading to improved performance and extended energy savings over the unit's life.
Warranty Your Way™
Lennox offers comprehensive warranty options for Merit Series heat pumps. All models include a 5-Year Limited Warranty on compressors and a 5-Year Limited Warranty on covered components. An optional 10-Year Extended Limited Warranty is available upon product registration. For more information, visit www.lennox.com/WarrantyYourWay.
