MOST POPULAR Mr Cool mini split single zone heat pump system

DIY 4th Generation E Series offers a 5-year parts and 7-year compressor warranty.

 Easy Pro provides a 2-year parts and 1-year compressor warranty.

 Easy Pro offers 9K, 12K, 18K, and 24K BTU options.

DIY 4th Generation E Series offers 12K, 18K, 24K, and 36K BTU options

DIY 4th Generation systems generally have higher performance ratings (SEER)  making them more energy efficient.

                                             SEER/SEER2

 12K               4th   Gen  22 / 22.5      Easy Pro  18 / 18.9

18K                4th Gen   22 / 22.7       Easy Pro   18.3 / 19.3

24K                4th Gen 20.5 / 20.5      Easy Pro   18 / 18 

The SEER rating is crucial because it directly relates to the operational cost of the air conditioner. An air conditioner with a higher SEER uses less electricity for the same cooling, saving you money on energy bills.

As of January 1, 2023, the Department of Energy (DOE) will introduce the new SEER2 standard. SEER2 keeps the basic ideas of SEER but improves the testing methods to better match real-life situations.

 Cool Mode: -13°F - 122°F
Heat Mode: -13°F - 75°F 

 Cool Mode: 5°F - 122°F
Heat Mode: 5°F - 75.2°F 

 Easy Pro comes with a 16' line set, while DIY 4th Generation includes a 25' line set. 

 If wanting a longer warranty, wider operating temperatures if you live in a more extreme climate, and higher efficiency rating, the DIY 4th Generation Series is the better choice despite being more expensive. 

However, if these factors are not top priorities for you, the Easy Pro Series is still a great option.

 Both series qualify for tax and energy rebates and can be installed by yourself.