Is CARRIER AC Better Than MRCOOL? A Comprehensive DIY Guide

When it comes to choosing an air conditioning system for your home, the decision between Carrier AC and MrCool can be a challenging one, especially for DIY enthusiasts. This comprehensive guide will delve into the technical details, installation process, and performance considerations to help you make an informed decision on whether Carrier AC or MrCool is the better choice for your DIY project.

Ease of Installation: MrCool Shines for DIY Users

One of the key factors that sets MrCool apart from Carrier AC is its focus on user-friendly installation. MrCool’s DIY product line is designed with the homeowner in mind, offering several advantages:

  1. Pre-Charged Refrigerant: MrCool units come pre-charged with refrigerant, eliminating the need for complex refrigerant charging procedures that are typically required for traditional HVAC systems. This simplifies the installation process and reduces the risk of improper refrigerant handling.
  2. Intuitive Installation Guide: MrCool provides a detailed, step-by-step installation guide that is easy to follow, even for those with limited HVAC experience. The guide covers everything from unit placement to electrical wiring, making the installation process more accessible for DIY users.
  3. Plug-and-Play Connectivity: MrCool’s units feature plug-and-play connectivity, allowing for a straightforward electrical installation process. This eliminates the need for complex wiring and reduces the risk of improper electrical connections.

In contrast, Carrier AC is a more traditional HVAC brand that typically requires professional installation. While Carrier’s systems are known for their quality and reliability, the installation process can be more complex and may not be suitable for DIY enthusiasts without prior HVAC experience.

Performance: Carrier AC Offers Proven Reliability

is CARRIER AC better  than MRCOOL

When it comes to performance, Carrier AC has a well-established reputation for delivering high-quality and reliable HVAC systems. Some key performance considerations include:

  1. SEER Ratings: Carrier AC units can achieve SEER (Seasonal Energy Efficiency Ratio) ratings of up to 26, indicating excellent energy efficiency and cost-saving potential. In comparison, MrCool units have a maximum SEER rating of 22, which is still respectable but not quite as high as Carrier’s top-of-the-line models.
  2. Heating Capacity: Carrier AC units can provide heating capacities of up to 60,000 BTU, making them suitable for larger homes or areas with high heating demands. MrCool units, on the other hand, have a maximum heating capacity of 48,000 BTU, which may be more suitable for smaller to medium-sized spaces.
  3. Durability and Longevity: Carrier AC is known for the durability and longevity of its HVAC systems, with many units lasting 15-20 years or more with proper maintenance. While MrCool has made strides in improving the quality of its products, it may not have the same long-term track record as Carrier AC.

It’s important to note that while MrCool has received mixed reviews, with some users praising its performance and others reporting issues, Carrier AC is widely regarded as a reliable and high-performing HVAC brand.

Cost Considerations: MrCool Offers More Affordable Options

One of the key advantages of MrCool for DIY users is its more affordable pricing compared to Carrier AC. MrCool’s DIY-focused product line is generally less expensive, making it an attractive option for homeowners looking to save on installation costs.

However, it’s crucial to consider the long-term costs of ownership, including maintenance and repairs. MrCool units may have a higher repair rate compared to Carrier AC, which could offset the initial cost savings. Additionally, the availability and cost of replacement parts for MrCool units may be a consideration, as Carrier AC has a more established and widespread distribution network.

Technical Specifications Comparison

To help you make a more informed decision, let’s take a closer look at the technical specifications of Carrier AC and MrCool units:

Specification Carrier AC MrCool
SEER Rating Up to 26 Up to 22
Heating Capacity Up to 60,000 BTU Up to 48,000 BTU
Compressor Type Scroll Compressor Rotary Compressor
Refrigerant R-410A R-32
Noise Level 55-65 dB 50-60 dB
Warranty 10-year Compressor Warranty 7-year Compressor Warranty

It’s important to note that these specifications may vary depending on the specific models and configurations, so it’s always best to consult with the manufacturer or a professional HVAC contractor for the most up-to-date and accurate information.

Tools and Equipment Needed for DIY Installation

Regardless of whether you choose Carrier AC or MrCool, the DIY installation process will require a specific set of tools and equipment. Here’s a list of the essential items you’ll need:

  1. HVAC Manifold Gauge Set: This tool is used to measure the refrigerant pressure and charge the system properly.
  2. Vacuum Pump: Necessary for evacuating the refrigerant lines and removing any moisture or contaminants.
  3. Refrigerant Hoses: High-quality, flexible hoses to connect the indoor and outdoor units.
  4. Tubing Cutter and Flaring Tool: Used to properly cut and flare the copper refrigerant lines.
  5. Torque Wrench: Ensures the proper tightening of connections and fittings.
  6. Multimeter: Helps with electrical troubleshooting and verifying proper wiring connections.
  7. Drill and Bits: For drilling holes to route the refrigerant lines and electrical wiring.
  8. Level: Ensures the proper installation and leveling of the indoor and outdoor units.
  9. Pipe Insulation: Helps prevent heat transfer and condensation buildup in the refrigerant lines.
  10. Safety Gear: Includes gloves, safety glasses, and a respirator to protect yourself during the installation process.

It’s important to familiarize yourself with the proper use and handling of these tools and equipment, as improper use can lead to safety hazards or damage to the HVAC system.


In the battle of Carrier AC vs. MrCool, there is no clear-cut winner, as the choice ultimately depends on your specific needs, budget, and DIY experience. MrCool’s user-friendly installation process and more affordable pricing make it an attractive option for DIY enthusiasts, while Carrier AC’s proven reliability and high-performance specifications may be more appealing for those seeking a long-term, high-quality HVAC solution.

Ultimately, it’s crucial to carefully evaluate the pros and cons of each brand, consider your specific requirements, and consult with HVAC professionals or experienced DIY forums to make an informed decision that best suits your home and needs.


  1. Reddit Discussion on MrCool DIY
  2. YouTube Video: MrCool DIY Installation
  3. Garage Journal Forum: MrCool Experiences
  4. Garage Journal Forum: MrCool Reputation
  5. YouTube Video: Carrier AC Overview