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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 12000 BTU Mini Split Heat Pump AC Wall Mount Indoor Unit System | 23.5 SEER2 5th Generation DIY 115V | R454B
- Outdoor Unit: DIY-12-HP-C-115D25-O
- Indoor Unit: DIY-12-HP-WMAH-115D25-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.
As low as $3,009.60 was $3,168.00
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MrCool 12000 BTU Mini Split Heat Pump AC Condenser | DIY 5th Generation | 115V | R454B
Model Number
DIY-12-HP-C-115D25-O
Dimensions
30.12" W x 11.93" D x 21.85" H
Documents
Warranty
Parts: 5 years | Compressor: 10 years
MrCool 12000 BTU Mini Split AC Wall Mount Indoor Unit | DIY 5th Generation | 115V | R454B
Model Number
DIY-12-HP-WMAH-115D25-O
Dimensions
31.57" W x 7.44" D x 11.69" 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
216032544
MrCool 12000 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® 12000 BTU Mini-Split Heat Pump — a powerful, easy-to-install heating and cooling system perfect for rooms up to 550 sq. ft. Whether it’s a bedroom, office, or small living space, this system keeps you comfortable in every season. It’s designed for true DIY installation, so you can set it up yourself without special tools or professional help.
DIY-Friendly Installation
No special tools or professional help required! The included 25-foot pre-charged line set snaps into place without vacuuming or messy refrigerant handling—saving you time and money.
Smart Control, Your Way
Control your comfort from anywhere using the wireless remote, the SmartHVAC app (iOS & Android), or even voice commands with Amazon Alexa or Google Assistant.
Built to Last
The Gold Fin® Condenser resists rust and corrosion—great for coastal areas. The DIYPRO® cable adds extra protection from weather and wildlife, no electrical conduit needed.
Comfort That Follows You
The remote’s Follow Me feature tells the system to adjust based on where you are in the room, not just where the unit is.
Humidity Control
Switch to Dry Mode to reduce moisture and prevent that sticky, muggy feeling indoors.
Peace of Mind
Enjoy long-term reliability with industry-leading warranties:
- Limited Lifetime Warranty
- 7-Year Compressor Warranty
- 5-Year Parts Warranty
Experience easy installation, smart features, and all-season comfort with MRCOOL® DIY®.
Features
- Intertek listed 5031495
- Easy DIY installation
- Future-proof your investment with the included DIYPro® cable, eliminating the need for electrical conduit.
- Keep the included remote close by, and MRCOOL DIY®'s Follow Me® function will track the air temperature around you to ensure maximum comfort.
- The MRCOOL® Smart HVAC Controller® Module and App fully support Google Assistant & Amazon Alexa out of the box.
