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MRCOOL DIY 5th Gen 2-Zone 30,000 BTU Ductless Mini Split Air Conditioner & Heat Pump (12K+18K) (DIY2-B-36HP1218)

by MRCOOL
SKU DIY2-B-36HP1218
Save $1,040.75 Save $1,040.75
Original price $5,203.75
Original price $5,203.75 - Original price $5,203.75
Original price $5,203.75
Current price $4,163.00
$4,163.00 - $4,163.00
Current price $4,163.00
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MRCOOL DIY 5th Gen 2-Zone 30,000 BTU Ductless Mini Split Air Conditioner & Heat Pump (12K+18K) (DIY2-B-36HP1218)

Take Control of Your Comfort. Enjoy efficient, year-round comfort with the MRCOOL DIY 5th Gen Multi-Zone Mini Split System — the easiest and most affordable way to get powerful, energy-saving heating and cooling without hiring a professional.

  • Perfect Comfort for Two Rooms - Easily heat or cool two areas — one up to 500 sq. ft. and another up to 750 sq. ft. — each with independent temperature control for a truly personalized experience.
  • Simple, DIY Installation - Say goodbye to expensive installation fees. No HVAC license or special tools required — if you can use basic hand tools, you can install this system yourself.
  • Energy Efficiency That Pays Off - With up to 23 SEER2 cooling efficiency and 9.9 HSPF2-4 heating performance, this system delivers powerful performance while keeping your energy bills low.
  • Reliable Comfort in Every Season - Stay cozy even in extreme cold — dependable heating continues to perform at temperatures as low as -13°F.
  • Backed by a Strong Warranty - Enjoy long-lasting peace of mind with a 7-Year Compressor Replacement Warranty and 5-Year Parts Coverage.

No matter the season, the MRCOOL DIY Mini Split keeps your home comfortable and your costs down.
Smart. Simple. Affordable.

WHAT YOU GET:

  • OUTDOOR UNIT (36K) x 1

MRCOOL DIY® 5th Gen 36,000 BTU 5-Zone Multi-Zone Mini Split Condenser 230V (DIY-MULTI5-36HP230D-O) 

  • INDOOR UNIT (12K) x 1

MRCOOL DIY® 5th Gen 12,000 BTU Multi-Zone Mini Split Air Handler 230V (DIY-12-HP-WMAH-230D25-O)

  • INDOOR UNIT (18K) x 1

MRCOOL DIY® 5th Gen 18,000 BTU Multi-Zone Mini Split Air Handler 230V (DIY-18-HP-WMAH-230D25-O)

  • REMOTE CONTROL x 2

NOTE: Line sets are not included. Please choose your line set above. 

SPECIFICATIONS: 

SYSTEM OVERVIEW
System Type Ductless Mini Split Air Conditioner & Heat Pump
Zones 2
Capacity Total: 30,000 BTU
Zone 1: 12,000 BTU
Zone 2: 18,000 BTU
Coverage Area Total: 1,250 sq. ft.
Zone 1: 500 sq. ft.
Zone 2: 750 sq. ft.
Refrigerant R-454B
Line Sets Included None - Choose Your Line Sets Above!
Warranty 7 Years Compressor
5 Years Parts
OUTDOOR UNIT (36K) x 1
Model DIY-MULTI5-36HP230D-O
Dimensions 37.24" W x 16.14" D x 31.89" H
Cooling Capacity 34,000 BTU
SEER2 23.0
EER2 12.0
Heating Capacity 36,000 BTU
HSPF2-4 9.9
HSPF2-5 7.5
Outdoor Noise Level 64.0 dB(A)
Outdoor Operating Temperature Cooling: -13°F – 122°F
Heating: -13°F – 75°F
Voltage 208–230V
Phase 1
Cycle 60Hz
Min Circuit Ampacity 30.5A
Max Fuse Breaker 35.0A
Weight 169.75 lbs
Certifications ENERGY STAR Certified
AHRI Certified
UL Listed
ETL Listed
INDOOR UNIT (12K) x 1
Model DIY-12-HP-WMAH-230D25-O
Dimensions 31.57" W x 7.44" D x 11.69" H
Mounting Type Wall
Cooling Capacity 12,000 BTU
Heating Capacity 12,000 BTU
Coverage Area 351 to 500 sq. ft.
Liquid Line Size 1/4"
Suction Line Size 3/8"
Modes Auto Mode: Automatically selects heating or cooling based on the room's temperature.
Cool Mode: Lowers the room temperature to your desired setting.
Heat Mode: Raises the room temperature to your desired setting.
Fan-Only Mode: Circulates air without heating or cooling.
Dry Mode (Dehumidification): Reduces humidity levels in the room.
Sleep Mode: Gradually adjusts temperature settings for comfortable sleep and energy savings.
Weight 24.47 lbs
INDOOR UNIT (18K) x 1
Model DIY-18-HP-WMAH-230D25-O
Dimensions 42.52" W x 8.9" D x 13.19" H
Mounting Type Wall
Cooling Capacity 18,000 BTU
Heating Capacity 18,000 BTU
Coverage Area 501 to 750 sq. ft.
Liquid Line Size 1/4"
Suction Line Size 1/2"
Modes Auto Mode: Automatically selects heating or cooling based on the room's temperature.
Cool Mode: Lowers the room temperature to your desired setting.
Heat Mode: Raises the room temperature to your desired setting.
Fan-Only Mode: Circulates air without heating or cooling.
Dry Mode (Dehumidification): Reduces humidity levels in the room.
Sleep Mode: Gradually adjusts temperature settings for comfortable sleep and energy savings.
Weight 35.49 lbs

GUIDE:

Installation Manual

MRCOOL 5th Gen Brochure

Energy Guide

ARHI Certificate

Remote Control Manual

Warranty

SHIPPING POLICY:

Free Curbside Delivery
MRCOOL orders include free curbside delivery via FedEx Ground, FedEx Freight, or the most trusted carrier available. Please note that delivery is to the curbside only - be sure to arrange for assistance if needed, as the carrier will not bring items inside your home.

Tracking & Delivery Scheduling
In most cases, you will receive tracking details 3-5 business days after you place your order. When the tracking number is sent, please allow 1-2 business days for the tracking number to populate details.

RETURN POLICY:

MRCOOL returns must be requested within 30 days of your delivery date. We are unable to process returns submitted after this period. Products must be unused, uninstalled, and in their original packaging, including the box and pallet, to qualify for a return.

Restocking Fee
Please note, a 35% restocking fee will be applied to all approved returns.

Non-Returnable Items
Accessories including lineguards, wall mounts, linesets, couplers, and similar items are not eligible for return.