Mr. Cool Breaker Size – What Do You Need? [12K, 18K, 24K, 27K, And 36K Btu]

A circuit breaker became an immediate installment in every household since the age of electricity. Every appliance should have the proper circuit breaker size, or else it can cause a possible electric shock or hazard.

Mr. Cool has different series with 12k, 18k, 24k, and 36k BTU, such as the DIY Series. In this post, we have gathered the facts to determine which breaker size is suitable for your Mr. Cool unit. The collected facts will bring you to light.

 The breaker size differs depending on the kind of series your unit belongs to. Browse your unit model. The item list is by series, followed by the recommended minimum and maximum breaker size:

Mr. Cool DIY 4th Gen E Star Series

  1. Mr. Cool DIY 4th Gen E Star 12k - 19 Amp[min], 25 Amp[max]
  2. Mr. Cool DIY 4th Gen E Star 18k - 18 Amp[min], 30 Amp[max]
  3. Mr. Cool DIY 4th Gen E Star 24k - 22 Amp[min], 35 Amp[max]
  4. Mr. Cool DIY 4th Gen E Star 36k - 28 Amp[min], 35 Amp[max]

Mr. Cool DIY 4th Gen Multi-Zone Series

  1. Mr. Cool DIY 4th Gen Multi-Zone 12k,18k, 24k, and 36k [Indoor]  - 3 Amp[min], 15 Amp[max]
  2. Mr. Cool DIY 4th Gen Multi-Zone 18k [Outdoor] - 18 Amp[min], 25 Amp[max]
  3. Mr. Cool DIY 4th Gen Multi-Zone 27k [Outdoor] - 26 Amp[min], 40 Amp[max]
  4. Mr. Cool DIY 4th Gen Multi-Zone 36k [Outdoor] - 27 Amp[min], 45 Amp[max]

Mr. Cool Easy Pro Series

  1. Mr. Cool Easy Pro 12k - 20 Amp[min], 30 Amp[max]
  2. Mr. Cool Easy Pro 18k - 15.5 Amp[min], 25 Amp[max]
  3. Mr. Cool Easy Pro 24k - 21 Amp[min], 35 Amp[max]

Mr. Cool DIY 3rd Gen E Star Series

  1. Mr. Cool DIY 3rd Gen E Star 12k - 15 Amp[min], 20 Amp[max]
  2. Mr. Cool DIY 3rd Gen E Star 18k - 15 Amp[min], 20 Amp[max]
  3. Mr. Cool DIY 3rd Gen E Star 24k - 18 Amp[min], 25 Amp[max]
  4. Mr. Cool DIY 3rd Gen E Star 36k - 25 Amp[min], 30 Amp[max]

Mr. Cool DIY 3rd Gen Multi-Zone Series

  1. Mr. Cool DIY 3rd Gen Multi-Zone 12k,18k, and 24k [Indoor] - 3 Amp[min], 15 Amp[max]
  2. Mr. Cool DIY 3rd Gen Multi-Zone 27k [Outdoor] - 21 Amp[min], 35 Amp[max]
  3. Mr. Cool DIY 3rd Gen Multi-Zone 36k [Outdoor] - 30 Amp[min], 45 Amp[max]

Mr.Cool Advantage 3rd Gen Series

  1. Mr.Cool Advantage 3rd Gen 12k [Indoor]-  3 Amp[min], 15 Amp [max]
  2. Mr.Cool Advantage 3rd Gen 12k [Outdoor] -  18.5 Amp [min], 25 Amp[max]
  3. Mr.Cool Advantage 3rd Gen 18k - 20 Amp[max]
  4. Mr.Cool Advantage 3rd Gen 24k - 25 Amp[max]

Mr. Cool Olympus E-Star Series

  1. Mr. Cool Olympus E Star 12k - 15 Amp
  2. Mr. Cool Olympus E Star 18k - 15 Amp[min], 20 Amp[max]
  3. Mr. Cool Olympus E Star 24k - 15 Amp[min], 25 Amp[max]

Mr. Cool Olympus Hyper Heat Series

  1. Mr. Cool Olympus Hyper Heat 12k - 9 Amp[min], 15 Amp[max]
  2. Mr. Cool Olympus Hyper Heat 18k - 18 Amp[min], 25 Amp[max]
  3. Mr. Cool Olympus Hyper Heat 24k - 20 Amp[min], 30 Amp[max]

Finding out the right breaker size for your Mr. Cool is out there. But, if you just got your Mr.Cool unit and want to discover more about the breaker sizes, how to install it, and all the safety guidelines, especially when you're considering a DIY, get on and read the page until the end.

A collage of a split type airconditioner, Mr. Cool Breaker Size - What Do You Need? [12K, 18K, 24K, 27K, And 36K Btu]

Breaker Size for Mr. Cool: 12k, 18, k24k, 27k and 36k

Electrical circuit breakers on a gray background, close-up.

Oversizing the circuit breaker for your Mr. Cool can lead to overheating and damage to your unit. Undersizing the breaker can be forgivable, but it is best to find the right size of the breaker to match your Mr. Cool.

Mr. Cool 12k: Breaker Size 15, 25, 30, and 35 Amp

Mr. Cool DIY 4th and 3rd Gen Multi-Zone 12k, Mr.Cool Advantage 3rd Gen 12k [Indoor], Mr. Cool Olympus E Star 12k, and Mr. Cool Olympus Hyper Heat 12k have a maximum circuit capacity of 15 Amp.

Mr. Cool DIY 3rd Gen E Star 12k has a max of 20 Amp, while Mr. Cool DIY 4th Gen E Star 12k has 25 Amp.

Mr. Cool Easy Pro 12k has the highest maximum circuit capacity of 30 Amp. On the other hand, the 3rd Gen Multi-Zone offers air comfort in 4 zones. They put one more zone in the 4th Gen Multi-Zone, a total of 5 zones.

Mr. Cool 18k: Breaker Size 15, 20, 25, and 30 Amp

The 3rd Gen Multi-Zone 18k has a maximum circuit capacity of 15 Amp.

The 3rd Gen E Star 18k, Advantage 3rd Gen 18k, and Olympus E Star 18k have 20 Amp, while the 4th Gen Multi-Zone, Easy Pro 18k, and Olympus Hyper Heat 18k have 25 Amp.

The 4th Gen E Star 18k can carry a maximum of 30 Amp.

The Olympus E Star has a sophisticated design, and it operates quietly. At the same time, the Olympus Hyper Heat is enhanced performance.

Mr. Cool 24k: Breaker Size 15, 25, and 30 Amp

The 4th Gen Multi-Zone 24k has a maximum circuit capacity of 15 Amp.

The 3rd Gen E Star 24k, Advantage 3rd Gen 24k, and Olympus E Star 24k have 25 Amp, but the Olympus Hyper Heat 24k has 30 Amp.

The breaker's minimum and maximum ampere required for each unit are in the unit's brochure or specification sheet. If you still have yours, check your unit model's recommended minimum and maximum capacity.

Mr. Cool 27k: Breaker Size 35 and 40 Amp

The 3rd Gen Multi-Zone 27k [Outdoor] has a maximum circuit capacity of 35 Amp. On the contrary, 4th Gen Multi-Zone 27k [Outdoor] has 40 Amp.

Mr. Cool's 27k units are seldom, but it requires a higher ampere than most Mr. Cool models. You can avail yourself of up to a 10-year- warranty for your HVAC units. Mr. Cool's lowest BTU[British thermal unit] is 9k.

Mr. Cool 36k: Breaker Size 30, 35, and 45 Amp

The 3rd Gen E Star 36k has a maximum circuit capacity of 30 Amp. The 4th Gen E Star 36k has 35 Amp. Moreover, the 4th Gen Multi-Zone 36k and the 3rd Gen Multi-Zone 36k [Outdoor] have a 45 Amp maximum circuit capacity.

The brand offers the only 2011 patented DIY installation for HVAC systems present in the market.

Besides healing and cooling systems, Mr. Cool has become a competitive manufacturer of heat pumps, central systems, water solutions, and thermostats. It's an American company based in Kentucky, USA.

Does A Mini Split Need Its Own Breaker?

Yes. It is advisable to secure a circuit breaker for each mini split unit. The disconnect box installment should be near the system. It is better to let a technician access the power-off button of the system whenever there's a need for repair.

Mini Splits systems are operational indoors and outdoors. Some series come in with specific indoor and outdoor models. Remember that mini splits should not have a standard outlet as plug-ins.

Check these 20-Amp circuit breakers on Amazon.

What Electrical Does A Mini Split Need?

A mini split has a specific power condition based on the model and size. The standard is 220 volts or higher for most systems. However, a few 9,000 to 12,000 BTU units may only require 110 volts.

Mini-splits are easier to install compared to central heating and cooling systems. Inquire from a ductless expert if you are interested in buying one, and it is better to call a technician to repair your mini-split.

Check this plug [input 110V-220V] on Amazon.

How Many Square Feet Will A 12000 BTU Mini Split Cool?

Modern studio living room with dining area and hallway in brown and beige color with wood plank wall and bookcases. 3d rendering.

A 12,000 BTU mini split system can cool a room of about 450-550 square feet, about the size of a typical studio apartment.

If you're planning to have your mini split professionally installed, the estimated cost is $3,000. The installation cost rests on the model and its energy efficiency rating.

Does More BTU Mean More Electricity?

Modern Living Room Interior With Air Conditioner, Orange Sofa And Green Armchair

The higher the BTU, means the more energy the system requires. 

BTU is the energy utilized to eliminate heat from a room. Since it has more BTU, it cools a room faster. It has higher efficiency. 

How Much Electricity Does A 12000 BTU Air Conditioner Use Per Hour?

air conditional panel and power plug on wall

A 12,000 BTU AC assuming a minimum of 13 SEER rating, consumes around 900 watts/hr. Air conditioners run for almost all year in America, especially in the South.

Your air-conditioner can most likely be the most energy-consuming appliance in your house. It helps to know the right size of unit for your room.

In Conclusion

Mr. Cool has a range of series that require circuit capacity from 15 Amp to 45 Amp. Learning about your unit's breaker size is important since every system should have an allotted circuit breaker.

By discovering the correct circuit capacity, you can prevent electrical faults and damage to your appliance and your whole wirings in the house. You are one step wiser in managing a comfortable home!

Before leaving the page, find more solutions for your Mr. Cool in these posts: "How Do I Reconnect Mr. Cool Wi-Fi?" and  "Mr. Cool Follow Me Not Working – Why And What To Do?"

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