Install Your Own MR COOL DIY Mini Split and Skip $6,200+ in Contractor Costs
Save thousands on installation—and have it running the same day!
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Swipe to browse our full range of single and multi-zone DIY mini splits. Tap any system for live pricing.
Can You Install a MRCOOL Mini Split Yourself? (Yes - Here’s How)
Yes. With MRCOOL DIY, you can install a mini split yourself in a few hours - no HVAC license, no special tools, and no refrigerant handling required. That’s what makes it different from every other system on the market.
How Much Does It Cost to Install a MR COOL DIY Mini Split AC Unit?
Most homeowners pay $2,000–$3,000+ in labor alone and much more for a multi-zone mini split. (Up to $25,000 - $30,000 in labor alone).
That cost has nothing to do with the equipment - it’s strictly installation.
With MRCOOL DIY, you eliminate that cost completely.
What Size MRCOOL DIY Mini Split Do You Need?
Choosing the right size system is critical for performance, efficiency, and comfort. If your system is too small, it won’t keep up. Too large, and you lose efficiency and control.
Use Our Sizing Guide
*Representative savings comparison
What Makes MRCOOL DIY Mini Splits Different?
MRCOOL DIY systems are built specifically for homeowner installation.
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Pre-charged lines - No HVAC tools needed
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Simple connections - install it yourself
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No refrigerant handling - no certification or license required
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Running the same day - no waiting on contractors
Key Features
Easy DIY Install
Comes with a pre-charged 16-ft line set - no special tools or experience needed.
Control from Anywhere
Adjust temperature from your phone or with Alexa/Google.
Lower Energy Bills
Up to 22 SEER. Designed to run efficiently and keep monthly costs down.
Quiet Operation
Runs smoothly at just 55dB (similar to a modern refrigerator).
Built to Last
Coated to resist rust and handle humid or coastal areas.
Works in Cold Weather
Can still cool and heat effectively even when outdoor temps drop low.
Average Mini Split Operating Cost (Real Numbers)
(Florida used as high-side benchmark—most areas are lower.)
| System Size | Cost Per Hour | Monthly Cost |
|---|---|---|
| 9,000 BTU | 6 cents | $12 |
| 12,000 BTU | 8 cents | $15 |
| 18,000 BTU | 12 cents | $24 |
Bottom line: Nothing costs less to cool and heat your home.
How Does a MRCOOL DIY Mini Split Work?
The system includes a patented Quick Connect® Line Set pre-charged with R-454B refrigerant.
No special tools. No vacuum pump. No gauges. No handling refrigerant. Just connect and go.
What You Don’t Need
- No HVAC license
- No refrigerant handling
- No vacuum pump
- No gauges
- No contractor
This is true DIY HVAC.
What Comes with the System?
- EasyPro® 5th Gen Outdoor Condenser
- Wall-mounted Air Handler
- 16-ft Pre-Charged Quick Connect Line Set
- Factory charged with R-454B Refrigerant
- DIYPro® Armored Power Cable (no conduit needed)
- Follow Me® Thermostat
- Smart HVAC Controller® (Alexa & Google)
- Intertek Listed
How to Install a Mini Split Yourself (Step-by-Step)
Step 1 – Mount the Indoor Unit
Install the air handler wall bracket, drill the hole, and place the condenser outside.
Step 2 – Connect the Line Set
Pre-charged fittings connect directly to the units—no tools required.
Step 3 – Power On the System
Connect electrical wiring and start the system. (Electrician may be needed if no existing connection.)
Most installs take 3–5 hours.
How Much Can You Save Installing a Mini Split Yourself?
Same comfort. Thousands saved.
Is a DIY Mini Split Right for You?
Best Fit for Homeowners Who:
- Want to avoid high installation costs
- Prefer control over project timing
- Are comfortable with basic DIY home projects
If not, a professionally installed system may be a better option.
View Single Zone Mini SplitsMRCOOL DIY Reviews from Real Customers
"The pre-charged lines made this an absolute breeze. I had cooling in my garage workshop the exact same day it arrived. Saved me $2,500 easily."
- James W.
"I was skeptical about doing it myself, but the instructions and the Quick Connect fittings are foolproof. The unit is incredibly quiet."
- Brian S.
"We installed a 3-zone system. The shipping was fast, everything came securely palletized. AC Direct customer support helped me verify my sizes before ordering."
- Sarah M.
MRCOOL DIY Mini Split FAQs
Is the MRCOOL DIY system really pre-charged?
Yes, absolutely! The MRCOOL DIY system features a patented Quick Connect® line set that comes pre-charged with the exact amount of R-454B refrigerant needed. Because the lines are completely sealed, you simply plug them in and tighten the fittings. There is no need for a vacuum pump, no need to measure pressure with gauges, and zero risk of leaking refrigerant during a standard installation.
How long does it take to install a mini split yourself?
While it depends on your comfort level with basic DIY projects, most homeowners complete the entire installation in just 3 to 5 hours. The process is straightforward: mount the indoor bracket, drill a small hole through the wall for the lines, place the outdoor condenser, and connect the pre-charged lines. If you don't have an existing dedicated electrical circuit, you may need a licensed electrician to run the power, which is typically a quick and inexpensive job.
Do you need a license to install a mini split?
No HVAC license is required to install the MRCOOL DIY series. Traditional mini splits require an EPA-certified technician to handle the refrigerant, but because MRCOOL's Quick Connect® lines are pre-charged and sealed at the factory, you can legally and safely connect them yourself. This unique design is exactly how you save thousands of dollars on contractor labor.
How much electricity does a mini split use?
Mini splits are incredibly energy efficient. A standard 12,000 BTU MRCOOL DIY system typically costs between $15 and $18 per month to operate, depending on your local electricity rates and usage habits. Thanks to variable-speed inverter technology, the compressor ramps up and down smoothly rather than turning completely on and off, which uses significantly less power than traditional window units or older central AC systems.
Can someone help me choose the right size system?
Yes! Sizing your mini split correctly is the most important step for ensuring maximum comfort and efficiency. Our team of HVAC experts is standing by to help you calculate the exact BTU requirements for your specific room size, ceiling height, and climate. Just give us a call at 866-862-8922, or use our online sizing calculator before you place your order.
Stop Paying for Installation You Don’t Need
Get the system. Install it yourself. Keep the savings.
Talk to a MRCOOL DIY Expert Before You Order
Call for fast, accurate system advice and selection.
866-862-8922
