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Merit® Series


Multi-Stage Heat Pump

Affordable, efficient cooling

16HPX Heat Pump
Price Guide
Efficiency Rating (SEER)
up to 16.5
Efficiency Rating (HSPF)
up to 9.5
Energy Star®

Merit models come with a 5-Year Limited Warranty on compressors and a 5-Year Limited Warranty on covered components. A 10-Year Extended Limited Warranty is available with product registration. For more information, visit

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Illustration of Multi-Stage Operation

Multi-Stage Operation

Multi-Stage Operation

Responding to changing conditions, the 16HPX adjusts to maximize energy savings—operating at lower speed most of the time, and ramping up during periods of increased cooling demand. This multi-stage operation also translates to enhanced humidity control.
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Efficient and Affordable

16HPX heat pump has efficiency ratings of up to 17.00 SEER and 9.5 HSPF, packing a lot of comfort into an affordable package.

Efficient and Affordable
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Illustration of Humidity Control

Humidity Control

Humidity Control

Pairing your heat pump with a variable-speed furnace or air handler allows you to continuously maintain a slow circulation of air throughout your home, decreasing the amount of humidity in your home for improved indoor air quality and comfort.
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Dual-Fuel Compatible

When the 16HPX is installed with a compatible Lennox furnace, it creates a heating system that can switch back and forth between electricity and gas automatically, based on whichever is most cost-efficient for the weather conditions at the time.
Dual-Fuel Compatible

Ratings & Reviews

See what other customers are saying about
16HPX Heat Pump

3 Stars 3/5

Poor Warranty

April 12, 2024

I got this product installed May of 2019 and now my compressor has went out and so I cant get my warranty because the company my home warranty sent out didnt register it.


Texarkana, Tx

Age: 25 to 34

Gender: Female

Reason for Replacement: Used home purchase

Warranty Satisfaction:
5 Stars 5/5
November 05, 2023

3 Stars 3/5

Elite Series XP16 with Icomfort S30

September 18, 2023

My old AC unit went boots up and I replaced it with the Lennox X P16 2 stage unit. No problems with the unit until 2021, that's when the coil started to leak and had to be replaced. Since then, I've had nothing but issues withe the coil springing a leak. So far the coil had to be replaced 4 TIMES. The heat unit outside has held up admirably, but the air handler unit for this model continues to fail. Very disappointed with this AC system. The AC company I use is great and apologized for the issues I'm having. They even replace the coil for free and no service charge since it's continuously failing. I asked if there is a recall on the air handler unit and coil that comes with this system. The tech e informed me that there is a newer model, but costly $$$. My choice is to purchase the newer air handler system for this unit or go through the headache of having to replace the coil every six months on the current system. I'm so disappointed with this system and ready to put my money in to a different model.



Age: 55 - 65

Gender: Female

Reason for Replacement: Emergency

Warranty Satisfaction:
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Energy Star

Proper sizing and installation of equipment is critical to achieve optimal performance. Split system air conditioners and heat pumps (excluding ductless systems) must be matched with appropriate coil components to meet ENERGY STAR criteria. Ask your contractor for details or visit

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