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Lennox Versus York Air ConditionersLennox Versus York Air Conditioners - Here is a Lennox and York comparison for their premium model air conditioner as requested by a reader of the site. Just off the top of my head, both systems are good systems. I would say Lennox had a slight advantage but first-hand experience in the field gives most HVAC technicians the opinion that Lennox is over-engineered.

Lennox Versus York Air Conditioners

That is not my own opinion as I have heard this among other technicians that have worked on Lennox products. Additionally, finding parts for the Lennox is difficult as some Lennox parts are proprietary (as many manufacturers have proprietary parts) but can only be purchased through a Lennox dealer which makes them more expensive.  Despite that reputation, Lennox does make a good air conditioner system that has quality workmanship and quality materials and parts in the air conditioners Lennox produces. York has an excellent reputation for quality products also.

York also has some air conditioner condensing units that are very aesthetic and pleasing to the eye so York units can be very stylish and pleasing. That is not to say the Lennox units are ugly as they are not. I once heard a former co-worker refer to the new style Lennox units as looking like a spaceship.  As far as quality and workmanship both Lennox and York are good systems.

Lennox Versus York Air Conditioners Models Comparison Matrix

Lennox XC21 Air Conditioner


York CZH Affinity Key Features


icomfort™-enabled technology internal air conditioner communication with an easy to use touchscreen air conditionerDiagnostic features available with an optional communication control
High & Low Pressure Controls to Protect the CompressorHigh & Low Pressure Controls to Protect the Compressor
Humidity Control with indoor variable speed air handler – Humiditrol CompatibleHumidity Control when matched with an Affinity Air Handler or Affinity Furnace.
SmartHinge™ louvered cabinet for coil protection and easy maintenanceStamped Metal Decorative Coil Guards
Lennox XC21 System has a two-stage compressorThe York QuietDrive™ System has a two-stage compressor
Variable Speed Blow & Low RPM Condenser Fan MotorAffinity Variable Speed Blow & Low RPM Condenser Fan Motor
R-410A RefrigerantR-410A Refrigerant
Pre-paint high quality steel for extended lifePowder paint over a baked on primer using a galvanized, zinc base metal for extended life
Compressor in Insulated Compressor Compartment for quiet operationCompressor in Isolated Molded Composite Compartment
Composite Base for Durability
Enhanced diagnostics for easier air conditioner troubleshootingEnhanced diagnostics with communication feature
10 Year Limited Parts Warranty on compressor and covered components10 Year Limited Parts Warranty
Energy Star Rated up to 21 SEEREnergy Star Rated up to 18 SEER
SunSource® Solar-Ready option

Lennox Versus York Air Conditioners - Differences

There are some differences in the two brands between York Affinity and Lennox XC21 air conditioner systems but the premium air conditioner models compare well aside from the Lennox system being a little higher in efficiency. Engineering and design of the systems, as well as aesthetic looks, is excellent for both models so the differences lay in the price and the quality of contractor doing the installation.

The Lennox high rating for efficiency does decline as the tonnage of the system rises. With a 21 SEER rating for a two ton Lennox XC21 and 16.5 SEER for a 5 ton Lennox XC21. Keep that in mind especially if you need the larger size unit. Lennox also advertises that this system can be hooked up the Lennox solar electrical systems. These systems are called SunSource® which uses solar panels to convert sunlight into electricity. It is somehow tied into your for air conditioning and heating electrical system. It’s designed to trim a little off the electric bill.

Solar Sense?

According to Lennox, their solar power system is a grid tied system. Theoretically, if your solar power system can produce enough electricity then the electric company will send you a check. It will take a lot of solar electric panels to do this feat. For some people, this is impractical as they do not have space for it. However upon a cursory review, it does seem like a good system. A system that will save you money in the future.

You probably cannot use these in Historical districts. These units are energy efficient and anything energy efficient is banned in historical districts.  Additionally, you must live in an area that has net metering. From what is understood, many people do live in net metering areas.

Lennox Versus York Air Conditioners - Conclusion

The York and the Lennox systems have some comparable features and have a reputation for quality in materials and workmanship. There are some negatives that go with both manufacturers – see above – but this goes with the territory.

As always we must always recommend to the customer that the most important part of purchasing any type of HVAC equipment is not the name on the HVAC equipment but the quality of job the contractor does when installing the HVAC equipment. We are going to qualify that statement as I seen a unit from an unnamed Asian country that begins with a big C that was true junk. The installing contractor needs to install the equipment correctly. Otherwise, you will not realize the efficiency the equipment is rated at.

Lennox Air Conditioner Reviews
York Air Conditioner Reviews

Lennox Versus York Air Conditioners - High Performance HVAC

Lennox Versus York Air Conditioners

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