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Description
MRCOOL DIY 4th Gen 2-Zone 36,000 BTU 22 SEER (18K + 18K) Ductless Mini Split AC and Heat Pump with Ceiling Cassettes - 230VMRCOOL DIY Multi Zone 4th Gen 36K BTU Dual Zone Ductless Mini Split with Ceiling Cassettes (18K + 18K) Experience superior heating and cooling with the MRCOOL DIY 4th Gen Multi Zone 36,000 BTU Dual Zone Ductless Mini Split System, featuring two 18,000 BTU ceiling cassette air handlers and a 36,000 BTU condenser. Designed for maximum comfort and easy installation, this system is the ultimate solution for homeowners seeking energy efficient, DIY
MRCOOL DIY Multi Zone 4th Gen 36K BTU Dual Zone Ductless Mini Split with Ceiling Cassettes (18K + 18K)
Experience superior heating and cooling with the MRCOOL DIY 4th Gen Multi Zone 36,000 BTU Dual Zone Ductless Mini Split System, featuring two 18,000 BTU ceiling cassette air handlers and a 36,000 BTU condenser. Designed for maximum comfort and easy installation, this system is the ultimate solution for homeowners seeking energy-efficient, DIY-friendly HVAC solutions.
Key Features
1. Advanced Efficiency
- Up to 21.5 SEER Efficiency Rating: Achieve significant energy savings while maintaining optimal comfort.
- Gold Fin® Technology: Corrosion-resistant condenser, perfect for coastal or high-humidity environments.
- Eco-Friendly Refrigerant: Utilizes R-410A refrigerant for an environmentally responsible cooling solution.
2. Discreet Ceiling Cassette Design
- Low-Profile Installation: Fits seamlessly between 16-inch joists, suitable for retrofits or new builds.
- Out of Sight Comfort: Saves wall and floor space while providing powerful, evenly distributed airflow.
3. Multi-Zone Functionality
- Dual 18K BTU Air Handlers: Each unit heats or cools up to 750 sq. ft., providing comfort for larger spaces.
- Flexible System Design: Compatible with ceiling cassette and wall-mounted air handlers for customized setups.
4. Easy DIY Installation
- Pre-Charged Quick Connect® Line Sets: Install without specialized tools or HVAC technicians.
- No-Vac® Coupler Compatibility: Extend line set lengths as needed for various configurations.
- Step-by-Step Tutorials: Access simple instructional videos for a stress-free installation process.
5. Smart Technology
- MRCOOL Smart HVAC App: Control the system remotely from your smartphone.
- Voice Assistant Integration: Compatible with Amazon Alexa and Google Home for effortless adjustments.
- Diagnostics & Alerts: Built-in display provides troubleshooting codes and alerts for easy maintenance.
6. Industry-Leading Warranty
- Lifetime Compressor Warranty: Register for the MRCOOL Care Program for unmatched coverage.
- Standard Coverage: 7-year compressor and 5-year parts warranty included.
Specifications
Condenser
- Cooling/Heating Capacity: 36,000 BTU
- Efficiency Ratings: SEER: 21.5 | EER: 10.5 | HSPF: 11/8.5
-
Operating Temperature Range:
- Cooling: 5°F ~ 122°F
- Heating: -13°F ~ 75.2°F
- Voltage Requirements: 208-230V/60HZ/27-45A
- Dimensions: 37.24"W x 16.14"D x 31.89"H
- Noise Level: 65 dBA
- Maximum Line Set Length: 196.85 ft total
- Warranty: Limited Lifetime Compressor (with registration), 7-year compressor, 5-year parts
Ceiling Cassette Air Handlers
-
18K BTU Air Handlers (Quantity: 2):
- Coverage Area: Up to 750 sq. ft. each
- Modes: COOL, HEAT, AUTO, DRY, FAN-ONLY, SLEEP
- Dimensions: 42.52"W x 8.90"D x 13.19"H
- Warranty: 5-year parts
Pre-Charged Line Sets
- Lengths Available: 16 ft., 25 ft., 35 ft., or 50 ft.
- Refrigerant: Pre-charged with eco-friendly R-410A refrigerant for easy installation.
Why Choose MRCOOL DIY Multi Zone 4th Gen 36K BTU?
- DIY Convenience: Save money and time with straightforward installation.
- Energy Efficiency: Reduce utility bills while maintaining consistent comfort.
- Smart Features: Control temperature settings from anywhere with app and voice control.
- Customizable System: Mix and match air handlers to meet your specific needs.
- Unmatched Warranty: Enjoy peace of mind with comprehensive coverage.
Applications
- Residential: Ideal for larger rooms like living rooms, master bedrooms, or home offices.
- Commercial: Perfect for office spaces or retail areas requiring efficient climate control.
- Renovations & New Builds: Designed to integrate seamlessly into any project.
Order Now
Transform your home or business with the MRCOOL DIY Multi Zone 4th Gen 36K BTU Dual Zone System. Enjoy ultimate comfort, energy savings, and the satisfaction of a DIY installation. Order today from MRCOOL DIY Direct!
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
Works
Size: 3 Panel-102'', Color: Beige, Size: 3 Panel-102'', Color: Beige
It’s beige and not white. Once install - hard to disinstall. Need a drill to put it together
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Reviewed in the United States on May 4, 2026
★★★★★ 3
Does the job, but assembling by yourself is a nightmare
Size: 4 Panel-88'', Color: Black
Does it do the job? Yes, although as others said there are small gaps but it's not a huge deal. The price is also good. But the reason I'm giving it a 3/5 is simply because the assembly for this was a complete nightmare. I honestly don't think I would recommend this to anyone unless they have another person to help them assemble it, because doing it by myself was terrible. I don't think I'd buy this again, I think I'd opt to just spend a bit more money and save myself the trouble personally.
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Reviewed in the United States on May 29, 2026
★★★★★ 4
Reasonably adequate room divider
Size: 4 Panel-88'', Color: Beige
I'm reviewing this as I assemble it.
Couple things:
1. I didn't expect as much assembly. I've ordered dividers before and they more-or-less came as one unit. Sometimes the panels needed screwing together. These require complete assembly and come largely as three rods: two make up vertical columns and snap together. Another one (called part "C") makes the horizontal columns and you have two of these per panel (one attaches to part "A" and the other part "B"). These parts are metal with a plastic shim. Using the wood screws to attach to part "C" is a real pain in the neck. There's not much holding the panel in place so it's a little tricky.
One tactic I've found while I'm assembling that works for the initial connections from parts A and B to their respective "C" rods is to hold the screw in place with a screw driver and then rotating the rod around the screw. This will do a number on your hands if you aren't wearing gloves. This obviously doesn't work when completing the connection.
Using a driller driver on this is really near impossible because there isn't anything you can use to secure it in place. You can use it on the first panel, but as it gets longer, it becomes increasingly difficult and because it isn't wood, it's really tight. I considered drilling larger pilot holes but since there are only 4x4=16 screws I need to screw in, I just decided to use my screw driver to complete it.
2. Also related to assembly. When completing the panels (attaching parts "A" and "B" to parts "C" that have the cloth cover on it), you have to be careful that when you tighten that side that it isn't loosening the other side. Because the pilot holes are so tight, you can end up rotating the rod, which rotates it in the same direction as looser on the original side. Having someone hold the "C" rod in place while you screw it in is probably the easiest approach. I didn't have a 2nd person, so I just had to keep flipping back and forth and tightening both sides as I screwed it in. Not the worlds biggest deal, but annoying nonetheless.
3. The way the instructions are written, they seem to suggest building this thing progressively; that is, you do panel 1, then 2, connect them together, then do 3 and connect it, etc. I took a different route that I suspect saved me quite a bit of trouble, and I assembled all four panels first and THEN connected everything together.
4. For the love of God make sure you check that the plastic tip is on the same side for every panel. Otherwise, you have to take one side apart again and reverse it. On the bright side, if this happens, you've essentially bored out the pilot holes to be the correct size... which is having me question if I shouldn't have just bored them out to the appropriate width in the first place.
5. Attaching all of the panels together is also an enormous pain in the ass unless you happen to have an 88" long elevated surface. Attaching the legs either requires you to elevate one side, which will invariably twist the inexplicably cheap material in the bottom connectors... or you can attach them sideways... or you can put this thing upright, having two people hold the panels in place while you use the allen wrench to tighten the bolts on the underside. None of those are particularly great options.
NOW on to the utility itself.
1. The panels do let some light through (I didn't believe their advertising, and that was one of the reasons that I bought beige, is that I wanted it to not be too dark). They aren't transparent though, so it isn't that far off from their description. They functionally work great, and keep the mess of wires hidden and when I'm sitting at my desk, actually reflect quite a bit of light into my office. Great!
2. My wife has described these as "the most hideous piece of furniture ever conceived of by man." So it does not have spouse approval factor. Granted, she will seldom be in my office area, so that isn't the end of the world.
3. These are really hard to align in a way that doesn't look a little tacky. There are some plastic connectors but they don't do a bang up job of keeping these in place. Each panel is slightly tilted and it's... quite obvious. I may at some point make my own improvements to these to help make them more level. It's not a particularly expensive product so I wasn't expecting much so it's fine and I'm not going to ding them on the rating because of it.
All said, would I buy this product again? Probably not. It's assembly was ~90 minutes which is about 75 minutes longer than I was anticipating spending on this (not including the 5 minute writeup that I'm doing here). But am I going to return it? Also no, if for no other reason I'd be just as annoyed taking it apart and putting it in the original box to return it.
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Reviewed in the United States on October 31, 2023
★★★★★ 5
Good product, poor directions.
Color: Black, Size: B-88''W-4 Panel
The quality of the product was better than most at this price. The directions could have been much better even though I have an engineering background.
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Reviewed in the United States on September 1, 2025
★★★★★ 4
Nice partition for my basement
Color: Beige, Size: B-102''-3 Panel
This 3-panel room divider showed up well-packaged with all the parts and even a little tool for putting it together. The instructions were easy to follow, and while one person can definitely assemble it, having two makes it quicker and less frustrating.
It does exactly what I needed—gives quick, easy coverage in an open area. I'm using it in my basement to hide the furnace and water heater, and it works great for that. It looks nice overall, but I picked the beige fabric (which is really more of a tan), and the black frame makes it stand out more than I’d like. A white or lighter frame would’ve blended better. Not sure that I would use it anywhere besides the basement
It’s lightweight and pretty sturdy. The wheels make it easy to move, but it does get a bit wobbly, and the panel clips need to be readjusted every time you roll it somewhere new. Still, for the price, it’s a solid buy. I’m happy with it and planning to order another one.
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Reviewed in the United States on June 21, 2025