MRCOOL® DIY 4th Gen 36k BTU Ductless Mini-Split Air Handler 208-230V/60Hz
Component — Not a Complete System
This is the indoor unit only. To run, you also need a matching outdoor condenser and a refrigerant line set. Looking for the complete system instead? Browse complete 36,000 BTU systems.
SKU DIY-36-HP-WMAH-230C25
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MrCool DIY factory warranty — register after install to activate the full coverage tiers.
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Description
MRCOOL® DIY 4th Gen 36k BTU Ductless Mini-Split Air Handler 208-230V/60Hz
What's in the Box
Here's what you'll receive with your order
Wall-Mount Air Handler
Indoor ductless mini-split unit
Wireless Remote Control
Handheld remote with temperature control
Mounting Plate & Hardware
Wall mounting bracket and screws
Owner Manual
Installation and operation guide
Key Specifications
36000BTU
Cooling Capacity
Up to 1500sq ft
Coverage Area
208-230V
Voltage
52/45/34dBA
Noise Level
36000BTU
Heating Capacity
MRCOOL® DIY 4th Gen 36k BTU Ductless Mini-Split Air Handler 208-230V/60Hz — Model Details
What this specific model is sized for, how it installs, how it performs, and what it costs to run.
Room & Space Coverage — 36,000 BTU
The MRCOOL® DIY 4th Gen 36k BTU Ductless Mini-Split Air Handler 208-230V/60Hz delivers 36,000 BTU of cooling and heating capacity, sized for spaces up to 1,500 sq ft in standard 8-ft ceiling rooms with average insulation. At this capacity the unit is typically used for open-plan main floors, large garages, pole barns, finished basements, and small commercial bays. For homes with vaulted ceilings, heavy sun exposure, or poor insulation, plan on ~20% more BTU per square foot than the nominal coverage.
Power & Electrical Requirements
Power requirement: 208-230V 1-phase 60Hz (standard US residential 240V service).
Install Difficulty — DIY-Friendly
This DIY 4th Gen Wall Mount Air Handler system ships with a pre-charged Quick Connect line set — no HVAC license, no vacuum pump, no refrigerant gauges. The pre-charged fittings use a hand-tightened mechanical seal that a homeowner completes in 15 minutes per connection. Typical install time from unboxing to first cool air is 4–8 hours for a single-head system. The system supports line set lengths up to 213.25ft; longer runs are available as accessory kits. Plan the shortest practical route — every 10ft of line set adds roughly 2% capacity loss. Ships with R-410A refrigerant. R-410A is a mature, widely-serviced refrigerant; service technicians and parts are available at any HVAC supply house.
Sound Level & Comfort Features
Operating sound level ranges from 34 dB(A) on low to 52 dB(A) on high — the low end is whisper-quiet, below a normal conversation (60 dB) and comparable to a library reading room. Quiet mode caps fan speed and compressor rpm for an extra 2–3 dB drop in sound output.
Warranty & Certifications
When you register your unit within 60 days of purchase you get Limited Lifetime Compressor on the compressor through MrCool's registered warranty program. Unregistered coverage drops to 5-year Parts / 7-year Compressor — registration takes 3 minutes at mrcool.com and is the highest-ROI post-purchase step you can take. AHRI certified — required for most utility rebate and tax credit programs.
What's in the Box & Compatibility
Ships as a Mini Split with remote control included.
Product Details
The MRCOOL® 4th Generation DIY 36K BTU Ductless Wall Mounted Air Handler is the highest capacity air handler in the DIY series and has the ability to cover an area up to 1,500 sq. ft. Even with that level of performance, it can still deliver an impressive 18 SEER efficiency rating when connected to a MRCOOL® Condenser. It also features multiple operating modes which include HEAT, COOL, AUTO, DRY (dehumidify), and SLEEP. To take the functionality even further, this unit can also be operated by your Apple or Android smartphone with use of our convenient Smart HVAC app. This air handler has a compact design which makes it easier to mount to most interior walls when using the included mounting plate. This air handler is also designed to be installed using MRCOOL's patented Pre-Charged Quick Connect Line Set. The quick connectors allow the line set to be installed in a few simple steps with two wrenches. It comes precharged with R-410A refrigerant, so no vacuuming or charging of the system is required once installed. Let the MrCool 4th Generation DIY 36K BTU Ductless Wall Mounted Air Handler take care of the heating and cooling of your home.
Specifications
| Cooling Capacity | 36,000 BTU |
| Heating Capacity | 36,000 BTU |
| Voltage | 208-230 V |
| Refrigerant | R-410A |
| Noise Level | 52/45/34 dBA |
| Coverage Area | Up to 1500 sq ft |
| Max Line Set | 213.25 ft |
| Phase | 1 |
| Refrigerant Type | R-410A |
| Liquid Line Size | 3/8 |
| Suction Line Size | 5/8 |
Features
- SmartHVAC app: WIFI control - control your DIY anywhere with your Apple or Android smart device and an Internet connection
- Standard 7-year compressor/5-year parts warranty; register for limited lifetime compressor warranty
- Compatible with Amazon Alexa and Google Assistant
- Includes the new DIY Pro™ Cable, an added safety feature to protect the wiring from the outside elements
Frequently Asked Questions
Everything you need to know about this product
What size room will the MRCOOL® DIY 4th Gen 36k BTU Ductless Mini-Split Air Handler 208-230V/60Hz cool?
Can I install this myself without an HVAC license?
What electrical circuit do I need for installation?
How fast does HVACZAR ship this unit?
What if it arrives damaged or I change my mind?
What is the warranty on the MRCOOL® DIY 4th Gen 36k BTU Ductless Mini-Split Air Handler 208-230V/60Hz?
How long does shipping take?
What size room does 36,000 BTU cover?
Do you offer returns?
How can I pay?
Related Products
Ships Nationwide — Shop by State
We deliver the MRCOOL® DIY 4th Gen 36k BTU Ductless Mini-Split Air Handler 208-230V/60Hz to all 50 states via FedEx, UPS, and truck freight. Each state page lists local rebate programs and utility incentives.