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- SEER2 rating helps consumers compare energy efficiency when choosing a new air conditioner. Higher SEER2 ratings mean significant utility savings. The federal minimum is 14 SEER2 with ratings into the 20 SEER2 range. A 20 SEER2 uses half the energy of a 10 seer much like MPG ratings for vehicles.
- Heat pumps are all electric and good for mild and cold climates.
MrCool 18000 BTU DIY Mini Split Heat Pump AC Wall Mount Indoor Unit System | 22.5 SEER2 5th Generation DIY 230V | R454B
- Outdoor Unit: DIY-18-HP-C-230D25-O
- Indoor Unit: DIY-18-HP-WMAH-230D25-O
- Controller: Included With Indoor Unit
- 25' Precharged R-454B Refrigerant Quick Connect Lineset
- DIY Pro® Armored Cable
Mini Split Sizing BTU Calculator
Use this Free & Easy Mini Split BTU Calculator to Select the Right Size Mini Split AC or Heat Pump for your Home.
When using a mini split sizing calculator for rooms below a conditioned space, apply an additional .7 factor to your final Btu outcome.
For example, if your Btu requirement via this calculator is 18,000 Btu's: 18,000 Btu's x .7 factor = 12,600 Btu's required. When in doubt, it is okay to go up a size or two. Unlike standard non-variable systems, The mini split inverter technology allows the system to adjust to the actual room requirements in both heating and cooling.
- SEER2 rating helps consumers compare energy efficiency when choosing a new air conditioner. Higher SEER2 ratings mean significant utility savings. The federal minimum is 14 SEER2 with ratings into the 20 SEER2 range. A 20 SEER2 uses half the energy of a 10 seer much like MPG ratings for vehicles.
- Heat pumps are all electric and good for mild and cold climates.
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MrCool 18000 BTU Mini Split Heat Pump AC Condenser | DIY 5th Generation | 230V | R454B
Model Number
DIY-18-HP-C-230D25-O
Dimensions
35.04" W x 13.46" D x 26.5" H
Documents
Warranty
Parts: 5 years | Compressor: 10 years
MrCool 18000 BTU Mini Split AC Wall Mount Indoor Unit | DIY 5th Generation | 230V | R454B
Model Number
DIY-18-HP-WMAH-230D25-O
Dimensions
42.52" W x 8.9" D x 13.19" H
Documents
Warranty
Parts: 5 years
Also includes:
- Wireless Remote Controller
- 25' Precharged R454B Refrigerant Quick Connect Lineset
- DIY Pro® Armored Cable
- Ability to turn your smart phone into a remote control using the MrCool App
AHRI Number
216032545
MrCool 18000 BTU Mini Split Heat Pump AC System Overview
Stay Comfortable Year-Round—No Tools or Experience Needed!
Upgrade your home with the 5th Generation MRCOOL® DIY® 18000 BTU Mini-Split Heat Pump — a powerful, easy-to-install heating and cooling system perfect for rooms up to 800 sq. ft. —ideal for larger bedrooms, living rooms, or home offices. It’s designed for true DIY installation
Who installs the AC unit after I purchase it?
ACDirect does not yet provide installation services directly. However, most of our customers successfully arrange installation through local licensed HVAC contractors. These systems are designed for professional installation and typically include the components your installer will need.
Here’s how it works:
- Hire a licensed HVAC technician in your area
- Use platforms like Angi, Thumbtack, or a local HVAC directory to find reliable professionals
- Confirm your installer is experienced with the system type you’re purchasing
Note:
Please be aware if you choose to install HVAC equipment yourself and don’t possess proper HVAC licensing, you will void the manufacturer’s factory warranty. If you are capable of a factory-compliant installation yourself, you will need a licensed HVAC contractor to sign off on your work, fully confirming factory-compliant workmanship.
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