ML17XP1
Heat Pump
Standard-efficiency, single-stage heat pump
ENERGY STAR® Qualified
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 www.Lennox.com/WarrantyYourWay.
Cooling Savings
Features
The Standard of Operation
A single-stage unit is either on or off, working at full capacity when in use. With this simplified mode of operation, this product provides the heating and cooling levels you’d expect.
Efficient and Affordable
Efficient and Affordable
The ML17XP1 offers energy efficiencies of up to 18.60 SEER and 10.60 HSPF, equivalent to 17.00 SEER2 and 8.50 HSPF2, delivering comfort and energy savings at a more affordable price.
ENERGY STAR® Certified
Heating, ventilation and air-conditioning (HVAC) equipment with the ENERGY STAR label meets or exceeds federal guidelines for energy-efficient performance.
Our Uncontested Quantum™ Coil
With years of rigorous testing under the most extreme conditions, our Quantum Coil – featuring a proprietary aluminum alloy exclusive to Lennox – is designed to weather the harshest elements.
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.
Ratings & Reviews
See what other customers are saying about
ML17XP1 Heat Pump
5/5
5/5
4/5
Lennox Heat Pump
July 10, 2025Let me start by saying I am no HVAC tech however I am electrician. I think the unit works perfectly and does the job smoothly. My only complaint I have about the unit is when it turns off it is loud. It makes a big thump noise. I don’t know what it is, and I’ve been trying to investigate it, but maybe it’s normal because I’ve heard AC Units do this before.
Yes, I recommend this product.
Tolleson, AZ
Age: 35 to 44
Gender: Male
Reason for Replacement: New home purchase
3/5
4/5
4/5
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Resources
Product Literature
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 www.energystar.gov.
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