MRCOOL DIY 12,000 BTU Mini Split Heat Pump – 22 SEER, No-Vacuum Install, Smart Home

MRCOOL DIY 12,000 BTU Ductless Mini Split Heat Pump – The Original DIY Mini Split

The MRCOOL DIY 12,000 BTU Mini Split revolutionized the ductless HVAC industry as the first truly DIY-installable mini split heat pump. Its patented No-Vacuum pre-charged Quick Connect line set means homeowners can install it without evacuation pumps, flare tools, or licensed HVAC technicians — saving $500–$2,000 in installation costs. Rated at 22 SEER for outstanding energy efficiency and featuring full smart home WiFi integration, this system covers spaces up to 700 sq. ft. with whole-season comfort.

About This Item

• DIY No-Vacuum Installation: MRCOOL’s patented Quick Connect pre-charged line set allows homeowners to install without a vacuum pump or refrigerant tools. Simply connect the lines, snap the fittings, and power on — the system is ready to run in hours.
• 22 SEER Energy Efficiency: High-efficiency inverter compressor adjusts output continuously for maximum comfort with minimum energy consumption — cutting heating and cooling bills by up to 50% vs. conventional HVAC.
• Smart Home WiFi Ready: Native SmartHVAC app integration and Amazon Alexa/Google Home compatibility. Control temperature, schedule, and modes from your smartphone or with voice commands.
• Heat Pump Down to 5°F: Operates in heating mode down to 5°F outside ambient temperature — covering most US climate zones through the full heating season.
• Complete System Package: Ships as a complete matched system including indoor air handler, outdoor condenser, pre-charged 25 ft. line set with Quick Connect fittings, remote control, and all wiring.
• Ultra-Quiet Comfort: Indoor unit operates at just 32 dB — whisper-quiet operation ideal for bedrooms, nurseries, home offices, and quiet living spaces.
• 5-Year Warranty: Full 5-year parts and compressor warranty when registered within 30 days. MRCOOL provides US-based customer support direct from the manufacturer.

Product Information

Customer Reviews Highlights

★★★★ 4.3/5 from 15,000+ verified buyers — MRCOOL DIY is the most reviewed DIY mini split on Amazon. Customers love the simple installation process, noting it takes 4–8 hours without HVAC tools. Performance is consistently praised, with reviewers highlighting the impressive efficiency and reliable smart home integration.