The MRCOOL® Advantage 5th Generation 12,000 BTU Mini-Split Heat Pump delivers efficient, quiet heating and cooling for rooms up to 550 sq. ft. This ductless system features a WiFi-enabled air handler, a rugged outdoor condenser with corrosion-resistant Gold Fin® coating, and environmentally friendly R-454B refrigerant for reduced global warming impact.

Rated at 21.3 SEER2 and 9.1 HSPF2-4, this system offers year-round comfort with low energy consumption. Use the MRCOOL® SmartHVAC app or voice commands via Amazon Alexa and Google Assistant to control settings remotely. The included remote features Follow Me® functionality to adjust temperature based on your location.

With quiet operation, timer mode, and refrigerant leak detection, the system supports modern comfort and safety expectations. Installation by a licensed HVAC technician is required for optimal performance and warranty eligibility.

Key Features

• Smart Control Integration – Built-in WiFi supports Amazon Alexa, Google Assistant, and the MRCOOL® SmartHVAC app.
  

• High Efficiency – 21.3 SEER2 and 9.1 HSPF2-4 ensure effective energy savings for year-round use.
  

• Follow Me® Function – Remote control senses temperature at your location for personalized comfort.
  

• Quiet Operation – Indoor noise levels as low as 21 dB(A) provide whisper-quiet performance.
  

• Eco-Friendly Refrigerant – R-454B refrigerant reduces GWP by approximately 80% compared to R-410A.
  

• Gold Fin® Condenser Protection – Corrosion-resistant coating ideal for coastal or humid climates.
  

• Low Ambient Operation – Cools in temps as low as 5°F and heats down to 5°F.
  

• Built-In Diagnostics – Includes timer mode and refrigerant leak detection for safety and energy efficiency.
  

• Professional Installation Required – Must be installed by a licensed HVAC contractor.
  

• Warranty Coverage – 1-year parts and remote, 2-year compressor, with optional lifetime coverage via MRCOOL® Care.Specifications

Specifications

• Brand: MRCOOL®
  

• Series: Advantage 5th Generation
  

• Product Type: Single-Zone Ductless Mini-Split Heat Pump
  

• Voltage: 230V, 1 Phase, 60 Hz
  

• Cooling Capacity: 12,000 BTU
  

• Heating Capacity: 12,000 BTU
  

• SEER2 Rating: 21.3
  

• EER2 Rating: 10.8
  

• HSPF2-4 Rating: 9.1
  

• HSPF2-5 Rating: 7
  

• Coverage Area: Up to 550 sq. ft.
  

• Zone Capacity: 1
  

• Outdoor Operating Temperature (Cooling): 5°F – 122°F
  

• Outdoor Operating Temperature (Heating): 5°F – 86°F
  

• Refrigerant Type: R-454B
  

• Refrigerant Volume: 24.69 oz
  

• Liquid Line Size: 1/4"
  

• Suction Line Size: 3/8"
  

• Max Line Set Length: 82 ft.
  

• Indoor Noise Level (Hi/Mi/Lo): 44.0 / 38.0 / 32.5 / 22.5 / 21 dB(A)
  

• Outdoor Noise Level: 54.0 dB(A)
  

• Compressor Type: Rotary
  

• Inverter: DC
  

• Condenser Dimensions: 30.12" W x 11.93" D x 21.85" H
  

• Air Handler Dimensions: 31.57" W x 7.44" D x 11.69" H
  

• Condenser Weight: 59.08 lbs
  

• Air Handler Weight: 19.4 lbs
  

• Max Fuse Breaker: 15A
  

• Min Circuit Ampacity: 13A
  

• Wifi Compatibility: Yes
  

• App Compatibility: Yes
  

• Works with iOS: Yes
  

• Works with Android: Yes
  

• Remote Control Included: Yes
  

• Fan Only Option: Yes
  

• Quiet Mode: Yes
  

• Auto Cool: Yes
  

• Certifications: UL Listed, CSA Listed, ETL Listed, AHRI Certified
  

• Warranty: 1-Year Parts, 2-Year Compressor, 1-Year Remote; Optional Lifetime

• Compressor Coverage with MRCOOL® Care Program

BTU Size Chart

Which BTU rating should I choose?

• The appropriate BTU rating depends on the size of the space you need to heat or cool.
• A higher BTU indicates greater heating and cooling capacity, allowing the air handler to effectively condition larger areas.

*Ceiling height, insulation quality, and local climate can all affect the actual coverage area. For instance, an uninsulated space will need more BTUs to maintain comfort compared to a well-insulated room.

Shipping & Returns

Shipping Policy

• Free Shipping on All Orders – We provide free standard delivery on all orders within the contiguous U.S.

• Ground Shipping for Smaller Items – Accessories and lighter products ship via standard ground carriers such as FedEx, UPS, or similar.

• Freight Delivery – Large items (HVAC/Heaters) ship via LTL freight. Drivers deliver to the curbside only; they cannot bring items into your home or garage.

• Tracking Information – Tracking is typically provided within 3–5 business days after your order is placed.

• Carrier Updates – Once tracking is issued, allow 1–2 business days for the carrier to populate shipment details.

• More Information – Full details can be found on our Shipping Policy page.

Return Policy

• 30-Day Return Window – Return requests must be submitted within 30 days of delivery; requests after this period cannot be accepted.

• Inspect Upon Delivery – Visible damage must be noted on the driver's paperwork. Report all damage within 24 hours to qualify for a replacement.

• Return Condition Requirements – Items must be unused, uninstalled, and in original packaging, including all boxes, crates, or pallets.

• Restocking Fees – Restocking fees of 25–35% apply to most brands; see full policy for details.

• Non-Returnable Items – Accessories, small components (remotes, line sets), and custom-finish items are non-returnable.

• Full Details – See our Return & Refund Policy page for complete guidelines.