Much more energy efficient than window units, has been WONDERFUL in the Florida heat! At night the fan alone keeps it nice and cool!
Free shipping sitewide
0% APR financing available
24/7 live chat, real support
Free shipping sitewide
0% APR financing available
24/7 live chat, real support
Delivery to: .
Free & fast shipping
30-day money-back guarantee
Free lifetime coverage
Enhance your indoor comfort with the Umbra Series 12,000 BTU mini split. This energy-efficient heat pump offers both heating and cooling for spaces up to 550 sq. ft., perfect for bedrooms, home offices, or small living areas. Operating at just 29dB, it ensures a quiet, comfortable environment while maintaining the ideal temperature. Featuring heating, cooling, and dehumidification modes, it also comes pre-charged with refrigerant and includes all components for a quick, easy installation.
1. Indoor Unit
2. Outdoor Unit
3. Refrigerant Pipe
4. Drain Lines
5. Remote Control
6. 2 AAA Batteries
7. Mounting Plate
8. Plasticine Putty
9. Wall cap
10. Plastic Wrap
11. Power Cords
12. Communication Cable
13. Bracket Template
Shipping Policy
How Long Will It Take for My Order to Ship?
It normally takes us 1 business day to arrange the shipment. During peak seasons, it will take 2-4 business days to arrange the shipment. We provide free ground shipping, so there are no additional charges for shipping and handling.
How Do I Track My Order?
Log into YOUR ACCOUNT, and you may see each individual order that you’ve placed with us. Select one that you want and you’ll be provided with all the details you need about the order.
Once your order is on the way you will receive a notification email.
What Should I Do If I Haven’t Received My Order?
Please contact us immediately.
For the full shipping policy, click here to view our shipping policy.
Return
We offer return guarantees to ensure your satisfaction with every DELLA purchase.
DELLA provides comprehensive assistance for all orders within 30 days of purchase. If you're not satisfied with your product within 30 days of purchase from dellahome.com, you can return the product for a full refund.Products must be returned in their original operating condition, including all accessories and packaging.The customer is responsible for return shipping costs.
If a product defect is confirmed, DELLA will, at its discretion, provide the necessary replacement parts free of charge. DELLA will also cover all shipping expenses for the delivery of replacement parts.
Need to Start a Return?
To initiate a return, call us at (800) 863-4143 or contact our live chat team.
For full return terms, click here to view our return policy.
Standard Warranty (1 Year): Products are covered by a 1-year limited warranty from the date of purchase.
Extended Warranty Program: Customers who register their mini split unit within 100 days of purchase will receive complimentary lifetime parts coverage.
Registered Product and Non-professional Install: If a product defect is confirmed, DELLA will, at its discretion, provide the necessary replacement parts free of charge. The customer is responsible for all shipping costs.
Registered Product and Professional Install: If a product defect is confirmed, DELLA will, at its discretion, provide the necessary replacement parts free of charge. If, after parts are replaced, the customer’s unit is still malfunctioning and the customer has a licensed HVAC tech's defective report, Della will take care of the customer at its discretion. In any event, the customer is responsible for all shipping costs.
Unregistered Product: If a product defect is confirmed, DELLA will, at its discretion, provide the necessary replacement parts. The customer is responsible for the costs of all parts and shipping.
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Unit Dimensions (WxDxH):31.18" x 7.91" x 11.5"
Net/Gross Weight:19.4 / 25.4
Unit Dimensions (WxDxH):27.76" x 10.98" x 20.87"
Net/Gross Weight:49.6 / 60.6
Cooling Capacity:12000
Heating Capacity:12000
SEER2:17
Fitting Area:550
Voltage:230V
Refrigerant Type:R-32
Maximum Fuse Size:10A
Copper Line Length:13ft
Copper Line Size:3/8 inch and 1/4 inch
Climate Range:19°F - 118°F
No.1 Selling Mini Split Brand on Amazon
Why blend in when you can stand out? The Umbra Series takes the proven performance of our Motto series and wraps it in a stunning, all-black finish. Designed for modern interiors and bold architectural statements, it’s more than a mini-split—it’s a design piece.
Featuring a high-efficiency 20 SEER2 rating and eco-friendly R32 refrigerant, Umbra delivers reliable comfort down to 5°F. It’s the perfect choice for those who demand elite climate control without compromising their home’s aesthetic.
Powered by MightAir X
22% more efficient energy savings
Cleaner air, healthier living
Durable design, lasting comfort
Designed for reliable heating and cooling through changing seasonal conditions, helping keep your home comfortable throughout the year.
Cool mode: Maintain a comfortable indoor temperature by automatically switching between heating and cooling as needed.
Cool mode: Maintain a comfortable indoor temperature by automatically switching between heating and cooling as needed.

Set schedules and timers through the Della+ app to match your daily routine.
Take control your way through the app, remote, or voice. Award-winning remote design makes every interaction seamless.
Your comfort adjusts automatically as you come and go.
Get help anytime with live chat or call, directly in the app.
Control your AC hands-free with Alexa.
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This unit uses R32 refrigerant. This unit comes pre-charged with R32 refrigerant for up to 24.5 feet of lineset. If your installation does not exceed this length, no additional refrigerant is needed.
Yes, you can purchase a longer lineset separately. If you buy it together with the Single Zone Mini split system, you’ll receive a 10% bundle discount. Please note, if the extended lineset is longer than 25 feet, additional refrigerant will be required. Make sure to consult a professional HVAC technician for proper installation.
The mini split condenser and lines are not pre-vacuumed. You will need to vacuum the system during installation to remove air and moisture before releasing the refrigerant—this is essential for proper operation and longevity. You can use our Rental Kit Service, which includes all the necessary tools for vacuuming and installing your mini split.

Not sure which system is right for your home? Our experts can help with sizing, installation, and product selection.
Technical support: Mon - Fri, 8 AM - 3 PM (PST)
24/7 live chat for general question
Overall rating: 4.9 / 5 from 54 reviews.
Much more energy efficient than window units, has been WONDERFUL in the Florida heat! At night the fan alone keeps it nice and cool!
Rachel W. 5/5 Verified
Easy install. Works great
Chuck W. 5/5 Verified
DELLA Umbra Series 18000 BTU 19 SEER2 Mini-Split Heat Pump AC - Up to 1000 Sq.Ft.
I built a 12 x 24 ‘she shed’ and added the Della mini split. This was the best decision I made.
Rhonda A. 5/5 Verified
Umbra Series 9000 BTU SEER2 19 Mini-Split Heat Pump AC - Up to 400 Sq.Ft.
Was nervous about doing this myself but it was fairly easy. I watched a few videos ahead of time. Overall I took about 4 hours as I was in no hurry. A friend of mine did the vacum part of it for me...I didn't want to screw it up lol. But I watched and am confident to install the next one. I am still learning ingredients the functions on the remote. I am ordering a smaller unit next week or so for the bedroom at this one is 18000btu...I love it so far...
Debra E. 5/5 Verified
Straight forward install and exactly what we needed.
Douglas B. 5/5 Verified
Real quiet works great. Nice temp display.
David B. 5/5 Verified
“This unit is amazing! It’s not only beautiful but also fits perfectly with my surroundings. The performance and quietness are impressive, quickly adjusting the room temperature to a comfortable level. I’m very satisfied with the service from Della as well; they’re quick to respond, helpful, and efficient at addressing any issues with the merchandiser. I highly recommend this unit and give it five stars!”
Dustin S. 5/5
The only thing I dislike about it is the line set length it should come with 25 feet like all the rest available on Amazon or put it in bold letters that it comes with 9 feet. Other then that it blows ice cold
Nathan C. 5/5 Verified
First and foremost... This product is designed to be installed by a professional. Lots of key information is not in the manual most likely because this is probably first hand knowledge for an experienced hvac person.Information missing from previous reviews.1) the larger line on the indoor unit is pressurized. Be careful removing the cap.2) the outdoor unit MUST have the lines seated properly.3) on the outdoor unit you must remove the copper caps(the ones pointed away from the unit) and open the valves ONLY AFTER you have properly seated the copper lines. You will hear a slight hissing as the coolant fills the lines. If the hissing last longer than a few seconds or you see liquid escaping you need to close the valve immediately and either seat your line better or find the leak.4) batteries supplied were dead. The remote will still light up, but won't power the unit on in that case.I think that covers all the info missing that we managed to figure out.Unit is incredibly quite inside and out, powerful fan, super sleek, android setup was a breeze. Very happy with this unit.
Angela 5/5 Verified
I Converted my garage into a work space /entertaining area. There is no duct work for air or heat . it very cold right now , feels really goodvery quiet and easy to install you may need an hvac and an electrician to complete install Looks nice !
Kristi L. 5/5 Verified
Love this unit! I would give it 10 stars if possible. I am a retired HVAC guy and purchased three of these for my log cabin vacation home in the mountains. The decor is dark wood with black trimming so this black indoor unit looks great on the wall. It appears to be very well built and loaded with features like "WIFI enabled right out of the box!
Raymondc 5/5 Verified
Just received our unit. Everything feels and looks like high quality, installation seems simple
Alexis F. 5/5 Verified
DELLA Umbra Series 18000 BTU 19 SEER2 Mini Split Heat Pump AC - Up to 1000 Sq.Ft.
Lighter than expected, easy install. Will need a professional to vacuum test the lines prior to charging them. Easy shipping and handling.
Ryan A. 5/5 Verified
DELLA Umbra Series 18000 BTU 19 SEER2 Mini Split Heat Pump AC - Up to 1000 Sq.Ft.
Always consistent operation unlike other brands.
Edwin S. 5/5 Verified
They work really well until they start leaking water inside the house and have to replace units about every three years!! While they are working they are really efficient and do a good job
Robert U. 5/5 Verified
DELLA Umbra Series 12000 BTU 17 SEER2 Mini Split Heat Pump AC - Up to 550 Sq.Ft.
easy to install
Ricardo A. 5/5 Verified
DELLA Umbra Series 12000 BTU 17 SEER2 Mini Split Heat Pump AC - Up to 550 Sq.Ft.
Very easy install with one exception, the 1/2 inch suction line was very difficult to bend without kinking the line. Had to remove the insulation and use a tubing bender to route the line in the correct direction of my application. Then reapply the insulation. As of now, one week running, the system is operating as it should.
David B. 4/5 Verified
The install was as simple as it could be.
Ron C. 5/5 Verified
easy install and works great!
Joe G. 5/5 Verified
Absolutely worked great
Jason F. 5/5 Verified
DELLA Umbra Series 18000 BTU 19 SEER2 Mini-Split Heat Pump AC - Up to 1000 Sq.Ft.
This is my second Della, planning to buy a third.
Nancy D. 5/5 Verified
We have a small wine room and this fit perfectly. Although it doesn't get to 55 degrees (perfect wine temp) it does get the room to 60. And it was 1/5 the price. The unit is very quiet compared to dedicated wine units.
David G. 5/5 Verified
Work great look great!!
Cillia S. 5/5 Verified
Great product
Aldo M. 5/5 Verified
Love it. Works perfect for my enclosed patio.
Tina C. 5/5 Verified
Della support is very responsive, helped me with 100 questions. also do not use torque specs AND NYLOG. Only use one or the other. So far great product.
J. E. 5/5 Verified
After I finished insulating my garage and hung this unit in it. The installation was pretty simple if you have ALL the tools you need to work and check for HVAC leaks. I would invest in a flare tool set in case you have to re-flare any of the fittings but once this bad boy is running, it keeps my garage in the mid-70s even when it's 100 degrees outside. The unit appears to operate more smoothly when you control it through the app vs the provided remote. It has a built-in dehumidifier already as well. The quality of the unit is not the best, however, it functions almost as well as a new brand unit.
Alexander E. 4/5 Verified
I love this mini split for the price and speed of delivery it was hands down the best decision/purchase I could've made!
Allen 5/5 Verified
The unit is installed and works great. As it has been in the 90's the past week the air conditioning has been marvelous. Install was straight forward, 2 hours from start to finish.
Placeholder 5/5 Verified
I bought this mini spilled because of the price to cool my 35-foot 5th wheel. Living in Arizona during the summer, I needed an a/c that wouldn't cost me a fortune to operate. Both my overhead units were costing me as much as $399 A month. The first month of using this mini spilled cost me $114. The customer ratings on this brand (Della) were mostly good, so I took the chance on it. I put the unit in myself with no problems. I did need to have our park maintenance man wire it into the meter box and vacuum the lines. I placed the unit on the rear wall of the trailer to blow back to front and it's doing a great job. Depending on the day (how hot it is) I run it at 78-80 degrees and pretty cold in the back of the trailer which keeps the front bedroom comfortable. I am very pleased with the purchase of this unit and brand.
Alan 5/5 Verified
Was worried at first due to it being a brand I'm not familiar with, but it works extremely well. Make sure you get an HVAC professional to flail out the ends for flush fittings. Also, get the 3-year warranty jic.
Tiffany 5/5 Verified
My screened porch has gas vinyl windows so it is not an ideal place to air condition, but along with the window ac I already had, it is the coolest room we have, including all inside the house during 103 heat index days. Highly recommend
Walt 5/5 Verified
My home is all cedar and the only source of heat was a small wood stove and a baseboard heater. I installed the Mini Split and it works great at heating my home without the smell of burning wood or high cost of electric heat.
Allen 4/5 Verified
Bought this for my 12'*20'shed now a miniature home. Moved in January 1st, 2024. Now Feb 24, a week from this day remote to ac stopped running ac. The night light worked, batteries are good. Just couldn't turn it on or off or Control the temperature with it. Order for $20 another got in today. All works but the night light on this one doesn't work but everything else does, as of day one today. Wish me luck on this one. Always have a spare remote on the Dela unit. Unit is doing great though so far after a month here in southwest GA
James 4/5 Verified
I've had it for a few months and so far It works great. It's quiet and keeps the area nice and cool in the summer, I'm yet to try the heater pump. Will update when I use it.
Viktor 5/5 Verified
I just got the unit and am working on the install. I just want to write this to let everyone know that the unit I received did not come with a template for the inside unit, and the line set is VERY short, like 9 feet!. That won't be a problem for me because I am installing it in a RV but it might be an issue for some peoples circumstances. If any other issues come up after the install is done I will report back.
Pacific S. 5/5 Verified
The first time it was delivered. Whoever delivered it, they did it very poorly to the point that it was damaged and could not be used. Customer service replied in a timely manner and helped resolve the issue.Now that it is properly installed. This is the best thingI've purchased all year. It has improved my quality of life since I hate the heat and our house does not have central air. We were using a portable AC but it was extremely loud and drained our energy. I have been using this and it cools down a good part of the space and it so quiet I can barely tell if it on or not. Very happy customer
Kristine 5/5 Verified
The unit is has awesome
Ozzie 5/5 Verified
Unit works well. Owners manual doesn't cover all their products
Good P. 4/5 Verified
I think they shipped an openned item to me. after I spent a couple days put it together, and at the end I could not turn it ON at all. Do not have Tech Support at all...After I called Della Customer Support. They were happy to send me a replacement Free of charge, The new replacement working perfect. Their Customer Support is great. I recommend Della ..... :) Great product
Sophie 5/5 Verified
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