Tired of hot-and-cold rooms, noisy window units, or wanting real comfort in a space that doesn’t have ductwork? When you need reliable cooling (and heating) without remodeling your whole home, a ductless mini-split can be a practical upgrade—but only if the features and installation reality match the hype.
In this review, we’re looking at the DELLA Motto Series 12,000 BTU mini split: a 115V, 20 SEER2 ductless inverter system with a pre-charged heat pump and 16.4 ft installation kit, designed by the manufacturer to cool up to 550 sq. ft. it also includes smart controls via the free della+ app, supports 2.4 GHz Wi‑Fi, and is compatible with Alexa for voice control, plus modes like sleep, scheduling/timers, and “I Feel” sensing.
We’ll cover sizing guidance, key comfort features (like 4D airflow and defrost protection), smart-home usability, and what customer feedback commonly highlights—many reviewers mention easy setup, strong heating/cooling, and convenient phone control.
We’ve researched and compared mini-splits across BTU sizes, SEER ratings, and control options, so we’ll focus on what matters before you buy.
Commercial Performance Overview for small Business Spaces and Daily Operations

For small business environments like boutique retail floors,salons,treatment rooms,or compact offices,the DELLA Motto Series is positioned as a practical “daily driver” mini-split thanks to its core sizing and efficiency specs. According to DELLA, it delivers 12,000 BTU/h cooling with a 20 SEER2 efficiency rating and is rated to cool (and heat) spaces up to 550 sq. ft., which aligns well with many single-zone commercial suites.The ductless inverter design is built to modulate output rather than cycling on/off aggressively,a benefit for maintaining steadier comfort during open hours. For spaces that need reliable airflow distribution across a customer area and a back counter, DELLA also lists features like 4D airflow, multiple fan speeds, and specialized modes (cooling, heating, dehumidifying/dry, turbo, sleep, and eco).
In day-to-day operations, convenience features can matter as much as raw capacity—especially when staff are busy. This model is listed as WiFi-enabled and compatible with Alexa, and DELLA notes it supports the 2.4 GHz band; the ability to adjust settings remotely can be helpful for pre-cooling before opening or correcting temperatures after hours. Customer feedback provided is consistently positive on performance and usability—reviewers say it was “easy to install and use,” that “heat and AC works great,” and one user specifically appreciated controlling temperature “from my phone while I travel,” which speaks to real operational versatility.DELLA also claims quiet operation at 27 dBa, which is valuable in client-facing spaces where noise can affect the experience, tho keep in mind installation quality matters and the brand notes that line-set vacuuming is required during setup.
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Energy Cost Savings Real Numbers for Our Monthly Utility Budget

For “real numbers,” the only defensible starting point is what DELLA states on the spec sheet: this is a 12,000 BTU mini split rated at 20 SEER2 on 115V, designed to cool (and heat, via heat pump) up to 550 sq. ft. According to DELLA, the DC inverter system is designed to reduce energy use, and they claim up to 30% power savings (that’s a manufacturer claim, not a guaranteed result for every home). In plain budget terms, higher SEER2 equipment is generally more efficient than older, low-SEER window units or many portable ACs—especially because inverter compressors can ramp down instead of cycling hard on/off—so the “numbers” you’re aiming for in your utility budget usually show up as a lower kWh draw for the same comfort level, not necessarily a dramatic, instant bill drop.
Where the monthly budget can become more predictable is in how you use the controls and modes that target efficiency rather than peak output. This DELLA includes energy-focused options like an eco energy saving mode,sleep mode,a 24-hour timer,and app/Wi‑Fi control (2.4 GHz band only) so you can avoid cooling an empty space longer than needed. A few reviewers also mention day-to-day satisfaction that often correlates with steadier energy use—e.g., being “a few months into using this unit” and liking phone control while traveling, plus multiple comments that it “works great” and is “easy to install and use”—but none of the provided reviews give specific dollar amounts or bill screenshots, so it wouldn’t be honest to promise exact monthly savings. If you want true “real numbers” for your household, the cleanest method is to compare your electric bills (kWh) for the same months year-over-year and note thermostat setpoints and run time; without that, any $/month figure would be guesswork.
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Installation Without Business Disruption and Fast Ramp Up for Continuous Service

As it’s a ductless system, the DELLA Motto Series can be added without tearing into existing ductwork—an advantage if you’re trying to keep a home office, rental, or day-to-day household routine running during an upgrade. DELLA includes a 16.4ft copper line set and 6.56ft drain pipe in the kit, which helps streamline the physical setup (and reduces the number of last-minute parts runs that can drag a project out). Having mentioned that, the product description is explicit that line-set vacuuming is required during installation, and DELLA also notes that professional HVAC installation is recommended for best results—so “minimal disruption” is realistic, but it’s still a real HVAC install with mounting, routing the line set, and commissioning.
For ramp-up and continuity of service, the unit’s convenience features are geared toward getting you pleasant quickly and keeping operation simple once it’s in place. It’s rated at 12,000 BTU with 20 SEER2 and sized for spaces up to 550 sq. ft. (per the manufacturer), plus it includes WiFi control through the Della+ app and is compatible with Alexa (with 2.4 GHz WiFi support). In reviews, several customers specifically mention it being “easy to install” and say heating and cooling “works great,” which aligns with a faster day-to-day ramp once it’s mounted and charged properly. If you want the smoothest handoff from install day to everyday use, plan ahead for the vacuum pump step (or a pro) and then leverage the schedules/timers, sleep mode, and remote/app controls to maintain steady comfort without constant manual adjustments.
Customer and Employee Comfort Control with Zoned Efficiency and smart Management

With a ductless mini-split like the DELLA Motto Series, comfort control is naturally more “zoned” than central HVAC because you’re conditioning the specific space where the indoor head is installed. According to DELLA, this model is rated at 12,000 BTU and designed to handle rooms up to 550 sq. ft., which can be a solid fit for a large living room, small apartment, or a shop/office area where you want targeted cooling and heating.Several reviewers echo that real-world use case, noting it “works great” for a big living room and kitchen and that both heat and AC perform well. The unit also includes comfort-focused airflow features like 4D air flow, multiple fan speeds, and modes for heating, cooling, dehumidifying, and dry operation—useful for keeping customers or employees comfortable through changing conditions without over-conditioning areas that don’t need it.
On the management side, DELLA highlights smart controls through the Della+ app, schedules & timer, geo location, and voice controls with Alexa compatibility (with the note that Wi‑Fi is 2.4 GHz only). That matters in a business or busy household setting because it supports consistent setpoints, after-hours setbacks, and speedy adjustments without walking to the remote—one customer specifically mentioned loving the ability to control temperature from their phone while traveling.For comfort where people actually are, the unit’s “I feel” mode uses the remote to sense temperature (rather of only reading at the indoor unit during cooling mode), which can definitely help reduce “hot/cold spots” that happen when the thermostat sensor isn’t in the same part of the room as the occupants. Combined with the system’s 20 SEER2 rating and inverter design (intended to modulate output rather than blast on/off), this setup is geared toward steady comfort with more efficient, smarter day-to-day operation.
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Maintenance and Warranty Readiness for Commercial Use and Long Term Uptime

For long-term uptime in a commercial setting, the maintenance routine on the DELLA Motto Series is the usual mini-split playbook: keep airflow unobstructed and keep the heat-exchanger surfaces clean. According to DELLA’s guidance, you’ll want to seasonally clean the reusable filters, inspect the condenser and evaporator units, and keep the area around the outdoor unit clear—basic steps that directly reduce nuisance shutdowns, icing issues, and performance drop-offs over time. This model is also positioned for hands-off operation with its WiFi/app control (2.4 GHz only), schedules/timers, and multiple operating modes, which can help maintain consistent conditions in offices, small retail spaces, or server/AV rooms (within its rated capacity) without constantly adjusting settings on-site.
Warranty readiness is where commercial users shoudl be extra careful. DELLA states its mini split systems include standard coverage,and that you can get lifetime parts coverage by registering within 100 days; they also note HVAC-licensed installs receive enhanced lifetime coverage,while non-licensed installs receive limited lifetime parts coverage. For a business that needs predictable uptime,that wording strongly favors professional installation and clean documentation (installer invoice,registration confirmation,and model/serial numbers). DELLA also notes that line-set vacuuming is required during installation, so confirming that step was properly performed is important for both reliability and warranty posture.In customer feedback, several reviewers describe it as “easy to install” and report strong cooling/heating performance after months of use, but long-term durability beyond that timeframe isn’t something the current reviews can fully validate.
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How We Compare It to Commercial Alternatives on Cost Efficiency and Operational Fit

When you compare the DELLA Motto Series to many commercial mini-split alternatives in the same size class, its cost-efficiency argument starts with the stated efficiency and included kit. this model is rated at 12,000 BTU and 20 SEER2 on 115V, and higher SEER2 equipment is generally considered more efficient than lower-rated options. DELLA also markets this unit as an AHRI Certified, ETL Listed system with DC inverter technology and claims “up to 30% power savings” (manufacturer claim).On the purchase side, the included 16.4 ft copper line set and drain pipe can reduce the number of add-ons you need versus some listings that price the indoor/outdoor units aggressively but leave key install pieces to be sourced separately.
On operational fit, the DELLA aims to act more like a “consumer-smart” alternative to conventional commercial offerings by combining a ductless heat pump with app and voice control. It’s WiFi enabled (DELLA notes it supports the 2.4 GHz band only), compatible with Alexa, and includes features like 4D airflow, I Feel mode, sleep, eco, and a 24-hour timer. That can be a better day-to-day fit for homeowners or light-use spaces—especially since multiple reviewers describe it as “easy to install” and say the heating/cooling “works great,” with one noting they like controlling temperature from their phone while traveling (customer feedback). The main operational caveat versus more “commercial” installs is that DELLA explicitly notes line-set vacuuming is required, and they reccommend professional HVAC installation for best results—so budgeting for tools or pro labor is still part of the real-world equation.
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Customer Reviews Analysis

Customer Experience Summary (Based on Provided Reviews)
1.Overall Sentiment
Overall sentiment was strongly positive. Reviews consistently described the unit as working well,being easy to install/use,and delivering effective heating and cooling. No explicit negatives were mentioned in the provided review set.
2. Common Praise
Installation & ease of use
- Multiple reviews praised straightforward setup, with customers saying it was “Easy to install” and “easy to install and use.”
Heating & cooling performance
- A common theme in reviews was strong performance on both modes: “Heat and AC works great.”
- Several reviewers noted it met or exceeded expectations, including “preformed better than expected” and “Works great… No complaints.”
- One reviewer shared that it handled larger spaces well: “Works great for my big living room and kitchen.”
Quality / overall satisfaction
- Some customers described it as a “High quality unit,” and others gave brief positive endorsements like “Really nice unit” and “Amazing unit.”
Smart/Wi‑Fi control
- One reviewer specifically highlighted remote control convenience: “I truly love being able to control the temperature from my phone while I travel.”
3. Common Concerns
- no concerns or complaints were stated in the provided reviews (one reviewer explicitly saeid “No complaints”).
4. Notable Use Cases
- Cooling/heating a larger combined space: One reviewer mentioned using it successfully for a “big living room and kitchen.”
- Remote temperature control while away: One reviewer emphasized phone control during travel: “control the temperature from my phone while I travel.”
- Longer-term trial before reviewing: One customer noted they waited after “a few months into using this unit” to assess performance,and still reported it was better than expected.
Pros & Cons

Strengths
- Efficient 20 SEER2 inverter system: Listed as 20 SEER2 with DC inverter technology (also described as offering “up to 30% power savings” by the manufacturer).
- Right-sized for medium rooms (up to 550 sq. ft.): Specs state 12,000 BTU cooling and recommended coverage up to 550 sq. ft.
- Heating + cooling in one ductless system: Includes a heat pump with 12,300 BTU heating capacity (per spec table) plus cooling.
- Smart controls included (WiFi/app + voice control): Product description notes the “Free Della+ App,” scheduling/timers, geo location, and voice controls; a reviewer also mentions controlling temperature from their phone while traveling.
- Quiet-operation claim: Manufacturer lists “ultra silent at only 27 dBa,” positioning it as a low-noise option for living spaces/bedrooms.
- Installation kit included with pre-charged system: Described as AHRI Certified and pre-charged,and includes a 16.4 ft copper line set plus a drain pipe and other installation kit components.
Considerations
- Requires line-set vacuuming during installation: The description explicitly states “Line-set vacuuming is required,” which can add tools/steps (or professional install costs) compared with simpler AC options.
- WiFi is limited to 2.4 GHz: Product Q&A/description states it supports the 2.4 GHz WiFi band only (not 5 GHz).
- Designed coverage is capped at 550 sq. ft.: The manufacturer’s recommended room size is “up to 550 sq. ft.” so larger spaces may require a higher-BTU model or additional indoor unit(s).
- extra refrigerant may be needed for some installs: The listing notes that “If additional refrigerant needs to be added to the lines, check R-32 availability,” implying certain line configurations/conditions could require more than what’s pre-charged.
- Warranty coverage varies by installer credentials: The “Lifetime Coverage” description says HVAC-licensed installs receive enhanced lifetime coverage,while non-licensed installs receive limited lifetime parts coverage (after registration within 100 days).
Q&A

What size room will the DELLA Motto Series 12,000 BTU mini split cool?
The product listing rates this 12,000 BTU system for spaces up to 550 sq.ft. DELLA’s sizing guidance in the description also notes that a ~550 sq. ft. room typically needs 12,000 BTUs. Real-world results can vary based on insulation, ceiling height, sun exposure, and local climate.
does this model provide heat as well as air conditioning?
Yes. This is a mini split heat pump system with both cooling (12,000 BTU/h) and heating (listed as 12,300 BTU/h for this series/model line in the comparison table). The description also states it provides cooling and heating and mentions performance in low outdoor temperatures (the page notes efficient performance even as low as 5°F for the outdoor unit with a bottom heating element). For official operating limits for your exact model number, verify on the amazon listing and DELLA documentation.
What Wi‑Fi band does it use, and does it work with Alexa?
It supports the 2.4 GHz Wi‑Fi band only (per the product Q&A text in the description). The listing also states it is compatible with Alexa and Wi‑Fi, and it references the DELLA+ app along with features like schedules/timers and voice controls. If your router uses separate network names for 2.4 GHz and 5 GHz, connect the unit to the 2.4 GHz network.
What electrical power does it require?
This is a 115V mini split system. The listing states it is ETL Listed and notes a maximum fuse size of 20A.Electrical requirements and any needed disconnects can vary by local code—confirm your circuit capacity and installation requirements with the manual or a licensed electrician/HVAC installer.
Does it come with the installation kit and line set, and what are the line sizes?
yes. The product description states a full 16 ft copper line is included and specifies standard sizes of 1/4″ and 3/8″ (outer diameter) copper pipes. It also lists a 6.56 ft outlet drain pipe (inner/outer diameter 15.5mm/16.9mm). If your installation needs a longer line set than 16.4 ft, sizing, routing, and any additional refrigerant requirements should be confirmed with the manufacturer/installer.
Can I install this mini split myself, and do I need to vacuum the lines?
The description recommends professional HVAC installation for best results and explicitly states that line-set vacuuming is required during installation.DELLA also mentions offering a “Rental Kit” with tools needed for vacuuming/installation. Even with a pre-charged outdoor unit, proper evacuation and leak checking are standard HVAC practices; requirements may also depend on local laws and warranty terms.
How do I clean and maintain it?
DELLA’s maintenance guidance in the description recommends seasonally cleaning the reusable filters, inspecting the condenser and evaporator units, and keeping the area around the outdoor unit clear. Exact steps and intervals can vary—follow the owner’s manual for your model and installation environment.
Reveal the Exceptional

The DELLA motto Series 12,000 BTU mini split is a solid single-zone option for small-to-medium areas, pairing a 20 SEER2 rating with 115V operation and coverage rated up to 550 sq.ft. It includes a pre-charged heat pump and a 16.4 ft installation kit, plus Wi‑Fi/app control and Alexa compatibility for basic smart-home convenience.Review themes tend to highlight strong cooling/heating performance, low perceived noise (advertised as 27 dBa), and straightforward day-to-day use once installed.
Best for: bedrooms, studios, garages, additions, or open living areas near the 550 sq. ft.range—especially if you want remote control, scheduling, and ductless comfort in one zone.
Consider alternatives if: you need multi-zone coverage,have a much larger space,require longer line-set runs than the included kit,or want to avoid the added complexity of vacuuming/charge-sensitive HVAC installation (often best handled by a licensed pro).
it looks like a capable value-focused mini split—just size it carefully and verify install requirements.
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