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Liquidación de sistemas completos mini split sin ductos MRCOOL: Ahorre $300 →

MRCOOL DIY 5th Gen Single-Zone Mini-Split — All Sizes Comparison

MRCOOL DIY 5th Generation

Compare MRCOOL DIY 5th Gen Single-Zone Systems

Compare the five eligible MRCOOL DIY 5th Gen complete single-zone systems from 9,000 to 36,000 BTU. Review capacity, efficiency, electrical requirements, Quick Connect line-set specifications, exact system SKUs and current promotional pricing.

R-454B Refrigerant 25 ft Pre-Charged Line Set No Vacuum Pump Required Built-In Wi-Fi Alexa & Google Assistant
Manufacturer Promotion · Through Dec 31, 2026

MRCOOL DIY 5th Gen Blowout — Save $300

Five eligible complete single-zone systems are reduced by $300 while promotional inventory lasts.

 Shop the Blowout →
9K · 115V
MRCOOL DIY 5th Gen
$2,029
$2,329
SAVE $300
View 9K →
12K · 115V
MRCOOL DIY 5th Gen
$2,059
$2,359
SAVE $300
View 12K →
18K · 208/230V
MRCOOL DIY 5th Gen
$2,609
$2,909
SAVE $300
View 18K →
24K · 208/230V
MRCOOL DIY 5th Gen
$3,029
$3,329
SAVE $300
View 24K →
36K · 208/230V
MRCOOL DIY 5th Gen
$3,469
$3,769
SAVE $300
View 36K →

Side-by-Side System Comparison

Scroll horizontally on smaller screens to view all five systems.

Specification 9K BTU 0.75 Ton · 115V 12K BTU 1 Ton · 115V 18K BTU 1.5 Ton · 208/230V 24K BTU 2 Ton · 208/230V 36K BTU 3 Ton · 208/230V
System Performance
Cooling Capacity 9,000 BTU/h 12,000 BTU/h 18,000 BTU/h 24,000 BTU/h 36,000 BTU/h
Heating Capacity 10,000 BTU/h 12,000 BTU/h 18,000 BTU/h 24,000 BTU/h 36,000 BTU/h
SEER2 23.6 23.5 22.5 22.7 18.0
EER2 14.0 12.5 13.7 12.7 8.5
HSPF2 — Region IV 11.5 10.2 11.5 9.5 8.5
HSPF2 — Region V 8.6 7.6 8.5 7.1 6.5
Coverage Guidance Up to 350 sq ft 350–500 sq ft 500–700 sq ft 750–1,000 sq ft 1,000–1,500 sq ft
Refrigerant R-454B R-454B R-454B R-454B R-454B
Electrical Requirements
Voltage 115V 115V 208/230V 208/230V 208/230V
Minimum Circuit Ampacity 18A 18A 18A 24A 33A
Max Fuse / Breaker 20A 20A 20A 25A 35A
Installation Details
Included Line Set 25 ft Pre-Charged 25 ft Pre-Charged 25 ft Pre-Charged 25 ft Pre-Charged 25 ft Pre-Charged
Maximum Line Set Length 82 ft 82 ft 98.4 ft 164 ft 213.2 ft
Liquid Line Size 1/4" 1/4" 1/4" 3/8" 3/8"
Suction Line Size 3/8" 3/8" 1/2" 5/8" 5/8"
Vacuum Pump Required No No No No No
Smart Features & Controls
Built-In Wi-Fi Yes Yes Yes Yes Yes
SmartHVAC App iOS / Android iOS / Android iOS / Android iOS / Android iOS / Android
Voice Control Alexa / Google Alexa / Google Alexa / Google Alexa / Google Alexa / Google
Follow Me Function Yes Yes Yes Yes Yes
Quiet Mode Yes Yes Yes Yes Yes
Warranty & Certifications
Base Parts Warranty 5 Years 5 Years 5 Years 5 Years 5 Years
Base Compressor Warranty 7 Years 7 Years 7 Years 7 Years 7 Years
Exact System SKU & Promotion
Complete System SKU DIY-09-HP-WM-115D25-O DIY-12-HP-WM-115D25-O DIY-18-HP-WM-230D25-O DIY-24-HP-WM-230D25-O DIY-36-HP-WM-230D25-O
Regular MAP $2,329 $2,359 $2,909 $3,329 $3,769
Blowout Price $2,029 $2,059 $2,609 $3,029 $3,469
Shop System View 9K View 12K View 18K View 24K View 36K

What's Included in the Complete System

Outdoor Condenser

  • Inverter-driven compressor
  • Gold Fin corrosion-resistant coating
  • R-454B refrigerant system
  • Single-zone configuration

Indoor Wall-Mount Air Handler

  • Wall-mounted indoor unit
  • Built-in Wi-Fi capability
  • Follow Me function
  • SmartHVAC app compatibility

25 ft Quick Connect Line Set

  • Pre-charged for the R-454B system
  • Quick Connect fittings
  • No vacuum pump required
  • Insulated refrigerant tubing

Controls & Installation Items

  • Wireless remote control
  • DIYPro communication cable
  • Installation documentation
  • Model-specific supplied components

Important Sizing, Installation & Warranty Notes

Coverage ranges are general sizing guidance. Actual sizing depends on climate, insulation, ceiling height, window exposure, occupancy, equipment loads and other building conditions.

These systems are designed around MRCOOL Quick Connect installation technology, but electrical work, equipment placement, clearances and all installation steps must follow the manufacturer instructions and applicable codes.

MRCOOL lists a base warranty of 5 years on parts and 7 years on the compressor for these systems. Optional manufacturer warranty or care programs remain subject to MRCOOL's current terms.

MRCOOL DIY 5th Gen Comparison FAQs

Which capacities are included?

This comparison covers the eligible 9K, 12K, 18K, 24K and 36K BTU complete single-zone systems.

Do all five systems use the same maximum line-set length?

No. Maximum line-set length varies by model. The current specifications used in this comparison are 82 ft for 9K and 12K, 98.4 ft for 18K, 164 ft for 24K and 213.2 ft for 36K. Follow the exact model installation documentation when using extensions.

Is a vacuum pump required?

The supplied pre-charged MRCOOL Quick Connect line-set system is designed so the refrigerant connection does not require a vacuum pump when installed according to the manufacturer's instructions.

What should I verify before ordering?

Confirm the complete-system SKU, BTU capacity, voltage, minimum circuit ampacity, breaker requirements, refrigerant-line sizes, current price, availability, supplied components and installation requirements for the exact system.

Need help selecting the correct MRCOOL system?

Send the application details, required capacity, quantity and delivery ZIP code. HVACProSales can review the exact system and commercial purchasing requirements.

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