As Amazon Associates, we earn from qualifying purchases. This means we may receive a small commission at no extra cost to you if you click through and make a purchase.
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
The Della Vario 18k BTU 21 SEER2 delivers quiet cooling and smart remote sensing for medium rooms. If you need different specs, these della vario 18k btu 21 alternatives cover your needs. The original unit offers 21 SEER2 efficiency and works with Alexa. Some buyers prefer smaller units for tighter spaces. Others require more BTU output for larger areas. You might also want a different voltage option. This list compares seven models with overlapping specifications.
Each alternative shares key traits like inverter technology and heating modes. You can choose a budget-friendly 12,000 BTU model or a premium 23,000 BTU unit. Some options provide multi-zone control for whole-home comfort. Others focus on ultra-quiet operation for bedrooms. We selected these products because their specs align with your potential requirements. You can compare SEER2 ratings, coverage areas, and smart features directly. This helps you find the right fit without guesswork. All units are ductless mini splits designed for professional installation.
How these units compare to the Della Vario
YITAHOME 12000 BTU 230V Mini Split
The YITAHOME 12000 BTU Mini Split covers up to 750 square feet, which is smaller than the Della Vario’s 1000 square foot range. It runs on 230V but offers 17 SEER2 efficiency, lower than the Vario’s 21 SEER2 rating. This unit weighs only 21.1 pounds, making it significantly lighter and easier to handle during installation. It includes Wi-Fi app control and voice commands via Alexa, matching the smart features of the original. If you need a more compact system for a smaller room or want a lighter unit that is easier to mount, this budget-friendly option fits your needs. It sacrifices some efficiency and coverage area for a lower footprint.
DELLA Serena 12000 BTU 230V Mini Split
The Della Serena 12000 BTU Mini Split provides 22 SEER2 efficiency, which is slightly higher than the Vario’s 21 SEER2. It covers a smaller area with 12,000 BTUs compared to the Vario’s 18,000 BTUs. This model weighs just 16.5 pounds, making it much lighter than the Vario unit. It also supports voice control through Alexa and operates on 230V power. The Serena is ideal if you prioritize maximum energy savings and quiet operation in a medium-sized room. You give up raw cooling power for better efficiency and a lighter design. If your space is smaller and you want the highest SEER2 rating in the Della lineup, this unit is a practical choice.
Della Econo 23000 BTU Mini Split
The Della Econo 23000 BTU Mini Split offers 23,000 BTUs of cooling power, which is stronger than the Vario’s 18,000 BTUs. It has a lower SEER2 rating of 17, meaning it uses more energy to produce the same cooling effect. This unit weighs 101 pounds, making it much heavier and more robust than the Vario. It includes Wi-Fi app control and Alexa voice commands, matching the smart capabilities of the original. The Econo is designed for large rooms that need extra power. If you have a larger space and need more BTUs, this premium option is suitable. You trade efficiency for higher cooling capacity and a heavier build.
DELLA Vita 24K BTU 20 SEER2
The DELLA Vita 24K BTU 20 SEER2 Mini Split provides 24,000 BTUs of cooling, which is stronger than the Vario’s 18,000 BTUs. It has a SEER2 rating of 20, slightly lower than the Vario’s 21 SEER2. This unit weighs 26.5 pounds, which is heavier than the Vario. It supports Wi-Fi app control and Alexa voice commands, matching the smart features of the original. The Vita is ideal for larger rooms that need strong cooling power. If you need more BTUs for a bigger space and want a balance between power and efficiency, this model is a good fit. You gain cooling capacity but lose a small amount of efficiency compared to the Vario.
Senville Tri Zone 28000 BTU Mini Split
The Senville Tri Zone 28000 BTU Mini Split is designed for multi-room climate control with three 9000 BTU indoor units. It uses a single outdoor unit to manage temperature in three distinct areas, which is different from the single-zone Vario. This system supports voice control via Alexa and operates on 230V power. It is ideal for homeowners who need to cool or heat multiple rooms separately. If you have a larger home with distinct zones, this zoned system offers flexibility that the Vario cannot match. You gain the ability to control different areas independently but lose the simplicity of a single-unit setup. It is best for complex layouts requiring zoned comfort.
Senville LETO 9000 BTU 115V
The Senville LETO 9000 BTU 115V Mini Split covers smaller rooms with 9000 BTUs, which is less than the Vario’s 18,000 BTUs. It runs on 120V power, making it compatible with standard household outlets, unlike the Vario’s 230V requirement. This unit weighs 25 pounds and supports voice control via Alexa. It is designed for quiet operation in small spaces. If you need a compact system for a smaller room and want to use a standard 120V outlet, this option is practical. You give up significant cooling power and the higher efficiency of the Vario. It is best for small rooms where standard voltage and quiet operation are priorities.
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | DELLA Vario 18k BTU 21 SEER2 Best overall | Medium rooms needing smart sensing and quiet cooling | |
| 2 | YITAHOME 12000 BTU 230V Mini Split Best budget | smaller rooms needing smart control | |
| 3 | DELLA Serena 12000 BTU 230V Mini Split Also great | Quiet, efficient cooling in medium rooms | |
| 4 | Della Econo 23000 BTU Mini Split Best premium | large rooms needing 230V power | |
| 5 | DELLA Vita 24K BTU 20 SEER2 Best 20 seer2 | large rooms needing 24000 BTU cooling | |
| 6 | Senville Tri Zone 28000 BTU Mini Split Also great | multi-room climate control with zoned heating and cooling | |
| 7 | Senville LETO 9000 BTU 115V Best quiet operation | small rooms needing quiet cooling |
DELLA Vario 18k BTU 21 SEER2
Best for: Medium rooms needing smart sensing and quiet cooling
- Cooling Capacity
- 18000 BTU/h, 1.5 tons
- Coverage Area
- Up to 1000 Sq. Ft
- SEER2 Rating
- 21 SEER2
- Voltage
- 208-230V
- Smart Compatibility
- Alexa, Wi-Fi, remote control
- Operating Modes
- Cooling, heating, dry
The Della Vario 18k BTU mini split offers 21 SEER2 efficiency and 230V power for spaces up to 1000 square feet. It includes smart Alexa compatibility and a smart sensor in the remote for precise temperature control. You get 4D airflow and quiet 32 dBa operation. This unit is a strong option if you need reliable heating down to -4℉ and energy savings through inverter technology.
- 21 SEER2 energy efficiency rating
- Smart sensor in remote for personal comfort
- Quiet 32 dBa operation
- Alexa voice control compatibility
- Heats effectively down to -4℉
- 18,000 BTU capacity is lower than the 22,000 to 28,000 BTU options on this list
- Requires professional installation and line-set vacuuming
- 230V voltage requires specific electrical setup
- You need a mid-range 18,000 BTU unit for a 1000 sq. ft. space
- You want smart remote sensing for precise temperature control
- You prefer quiet operation at 32 dBa
- You require higher capacity than 18,000 BTU
- You need a 115V plug-in unit instead of 230V hardwired
- You want a DIY installation without professional help
Verdict: Della Vario 18k BTU 21 SEER2 is a solid choice for medium-sized rooms where smart remote sensing and quiet operation matter more than raw power. It fits buyers who value energy efficiency and Alexa integration over the higher BTU output of larger competitors.
YITAHOME 12000 BTU 230V Mini Split
Best for: smaller rooms needing smart control
- Cooling Capacity
- 12000 BTU
- Coverage Area
- Up to 750 Sq. Ft
- SEER2 Rating
- 17 SEER2
- Voltage
- 208-230V
- Smart Compatibility
- Alexa, Wi-Fi, remote
- Operating Modes
- Auto, Cooling, Drying, Heating, Fan
The YITAHOME 12000 BTU Mini Split is a 17 SEER2 heat pump for spaces up to 750 sq. ft. It runs on 208-230V and connects via Wi-Fi to Alexa. You get five modes and four fan speeds. It operates quietly at under 41 dB and handles temperatures from 5°F to 118°F. This unit suits those needing a budget-friendly, smart-enabled system for moderate climates.
- 17 SEER2 energy efficiency rating
- Wi-Fi and Alexa voice control
- Quiet operation under 41 dB
- Covers up to 750 sq. ft.
- Lower 17 SEER2 efficiency compared to 21 or 22 SEER2 competitors
- Smaller 12000 BTU capacity than 18000 to 28000 BTU options
- Requires 208-230V power, limiting plug-in use
- You need a smaller 12000 BTU unit for a 750 sq. ft. room
- You want Wi-Fi control and Alexa compatibility
- You prefer a quieter system under 41 dB
- You need more than 12000 BTU for larger spaces
- You require a higher SEER2 rating for maximum efficiency
- You only have a standard 115V outlet available
Verdict: YITAHOME 12000 BTU Mini Split AC fits users who need a compact, smart-enabled heat pump for smaller rooms and do not require the highest efficiency or power.
DELLA Serena 12000 BTU 230V Mini Split
Best for: Quiet, efficient cooling in medium rooms
- Cooling Capacity
- 12000 BTU
- Coverage Area
- Up to 550 Sq.Ft
- SEER2 Rating
- 22 SEER2
- Voltage
- 208V-230V
- Smart Compatibility
- Alexa, Google Home, Wi-Fi, remote
- Operating Modes
- Heating, cooling, auto, dry
The Della Serena 12,000 BTU mini split offers 22 SEER2 efficiency on a 230V circuit. It includes inverter technology for stable temperature control and operates at 22 dBA in mute mode. The unit supports Alexa voice commands and features PureClean technology to reduce dust buildup. This 1-ton system covers rooms up to 550 square feet and includes a 24/7 live chat support line with a lifetime warranty.
- 22 SEER2 energy efficiency rating
- Ultra-quiet 22 dBA operation in mute mode
- Alexa voice control compatibility
- PureClean tech reduces indoor dust buildup
- Lifetime warranty with 24/7 live chat support
- 12,000 BTU capacity is lower than the 18,000 BTU Della Vario
- Requires professional installation and line-set vacuuming
- Heavier at 16.5 pounds compared to lighter units
- You need a high-efficiency 22 SEER2 unit for a 550 sq ft room
- You want a 230V system with Alexa integration
- You value quiet 22 dBA operation in mute mode
- You require more than 12,000 BTU of cooling power
- You prefer a 115V plug-in system without hardwiring
- You want a DIY-friendly installation without professional help
Verdict: The Della Serena 12,000 BTU 22 SEER2 fits buyers who prioritize energy savings and quiet operation for medium-sized rooms. Its high SEER2 rating and lifetime warranty make it a durable choice for 230V setups.
Della Econo 23000 BTU Mini Split
Best for: large rooms needing 230V power
- Cooling Capacity
- 23000 BTU/h
- Coverage Area
- Up to 1500 Sq. Ft
- SEER2 Rating
- 17 SEER2
- Voltage
- 208-230V
- Smart Compatibility
- Alexa, Wi-Fi, remote control
- Operating Modes
- Cooling, heating, auto, dry
The Della Econo Series is a 23,000 BTU mini split heat pump designed for spaces up to 1,500 square feet. It operates on 230V power with a 17 SEER2 efficiency rating. You get smart control via Wi-Fi and Alexa compatibility. The unit features a smart sensor in the remote for precise temperature adjustments. It runs quietly at 37 dBa and includes a full installation kit for professional setup.
- 17 SEER2 energy efficiency rating for cost-effective operation
- Covers up to 1,500 square feet of cooling and heating
- Smart sensor in remote adjusts airflow based on user location
- Quiet operation with noise levels as low as 37 dBa
- Works with Alexa for voice control integration
- Heavier build at 101 pounds compared to lighter 12k or 9k units
- Lower 17 SEER2 efficiency versus the 21 SE or 22 SEER2 options on this list
- Requires professional installation and is not a DIY unit
- You need a 230V unit for a large room up to 1,500 sq ft
- You want smart features like Alexa voice control and a remote sensor
- You prefer a heat pump that works in temperatures down to 5°F
- You need a 115V plug-in unit for smaller spaces
- You are looking for the highest efficiency rating available (22 SEER2)
- You prefer a lighter, more compact indoor unit under 100 pounds
Verdict: Della Econo 23000 BTU Mini Split suits you if you need a powerful 230V heat pump for a large room and value smart remote sensing over peak efficiency.
DELLA Vita 24K BTU 20 SEER2
Best for: large rooms needing 24000 BTU cooling
- Cooling Capacity
- 24,000 BTU (2 Ton)
- Coverage Area
- Up to 1,500 sq ft
- SEER2 Rating
- 20 SEER2
- Voltage
- 230V
- Smart Compatibility
- Alexa, Google Assistant, DELLA App
- Features
- Inverter
The DELLA Vita Series 24000 BTU mini split offers 20 SEER2 efficiency and 230V power for spaces up to 1500 sq.ft. It includes smart controls, an "I Feel" sensor, and operates quietly at 34 dB. This unit suits larger rooms needing strong cooling and heating down to -4℉. You get a complete installation kit with copper lines. It is a solid option if you need higher capacity than standard 18k units.
- 20 SEER2 energy efficiency rating
- 24000 BTU cooling capacity for large areas
- Ultra-quiet operation at 34 dB
- Includes "I Feel" sensor for precise temperature reading
- Works with Alexa and Google Assistant
- Lower SEER2 rating than the Della Serena 22 SEER2 and Senville Tri Zone 28000 BTU options
- Heavier build at 26.5 pounds compared to lighter 12000 BTU models
- Requires 230V power, limiting compatibility with standard 115V outlets
- You need to cool a space larger than 1200 sq.ft
- You have access to a 230V electrical outlet
- You want smart voice control via Alexa or Google
- You only have standard 115V outlets available
- You need the highest efficiency rating available on this list
- You are cooling a small room under 900 sq.ft
Verdict: DELLA Vita 24000 BTU 20 SEER2 Mini Split is a practical choice for larger rooms where you need strong cooling power and quiet operation. It fits buyers who have 230V power and want smart features without paying for the top-tier efficiency of the Serena series.
Senville Tri Zone 28000 BTU Mini Split
Best for: multi-room climate control with zoned heating and cooling
- Cooling Capacity
- 28000 BTU
- Voltage
- 208-230V
- Number of Zones
- Tri Zone
- Smart Compatibility
- Alexa, mobile app
- Features
- Inverter
- Operating Modes
- Heating
This Senville multi-zone system connects three 9000 BTU indoor handlers to one outdoor condenser. It delivers 27000 BTU of cooling and heating for larger spaces. The unit supports 230V power and works with Alexa for voice control. You get independent temperature settings for each room. Professional installation is required. This setup suits homes needing zoned climate control across multiple areas.
- Tri-zone design with three 9000 BTU indoor units
- Total capacity of 27000 BTU for large spaces
- Compatible with Alexa for voice control
- Independent temperature settings per room
- 10-year compressor warranty coverage
- Requires professional installation
- Higher upfront complexity than single-zone units
- Limited to two size options
- You need to cool or heat three separate rooms
- You want independent temperature control for each zone
- You prefer voice control via Alexa
- You only need to condition a single room
- You want a DIY installation process
- You need more than three zones
Verdict: Senville Tri Zone 27000 BTU Mini Split is ideal for homeowners who need to manage temperature in three distinct areas with a single outdoor unit. It offers flexible zoning and smart control for larger residential spaces.
Senville LETO 9000 BTU 115V
Best for: small rooms needing quiet cooling
- Cooling Capacity
- 9000 BTU (0.75 Ton)
- Voltage
- 110/120V
- Smart Compatibility
- Alexa, app, remote control
- Operating Modes
- AC, heat pump, dehumidifier, fan
- Features
- Inverter, Quiet Operation
- Control Method
- Voice Control
The Senville LETO is a 9,000 BTU wall-mounted mini split designed for small rooms. It operates on 110/120V and features DC inverter technology for precise temperature control. The unit includes a heat pump functional down to 5°F and works with Alexa. It is a compact, quiet option suitable for bedrooms or small offices where lower cooling capacity is sufficient.
- 9,000 BTU cooling capacity for small spaces
- DC inverter technology for energy efficiency
- Heat pump functional down to 5°F
- Alexa voice control compatibility
- Quiet operation mode
- 9,000 BTU capacity is lower than other listed options
- 110/120V voltage requires standard outlet
- 25-pound weight adds to installation weight
- You need a compact unit for a small bedroom
- You want quiet operation for sleeping areas
- You have a standard 120V outlet available
- You require more than 9,000 BTU of cooling
- You need a 208/230V high-voltage connection
- You want a larger unit for open living spaces
Verdict: Senville LETO 9000 BTU Mini Split is a quiet, efficient choice for small rooms. It fits buyers who prioritize low noise and smart control over raw power.
Specifications side by side
| Spec | DELLA Vario 18k BTU 21 SEER2 | YITAHOME 12000 BTU 230V Mini Split | DELLA Serena 12000 BTU 230V Mini Split | Della Econo 23000 BTU Mini Split | DELLA Vita 24K BTU 20 SEER2 | Senville Tri Zone 28000 BTU Mini Split | Senville LETO 9000 BTU 115V |
|---|---|---|---|---|---|---|---|
| Cooling Capacity | 18000 BTU/h, 1.5 tons | 12000 BTU | 12000 BTU | 23000 BTU/h | 24,000 BTU (2 Ton) | 28000 BTU | 9000 BTU (0.75 Ton) |
| Coverage Area | Up to 1000 Sq. Ft | Up to 750 Sq. Ft | Up to 550 Sq.Ft | Up to 1500 Sq. Ft | Up to 1,500 sq ft | – | – |
| SEER2 Rating | 21 SEER2 | 17 SEER2 | 22 SEER2 | 17 SEER2 | 20 SEER2 | – | – |
| Voltage | 208-230V | 208-230V | 208V-230V | 208-230V | 230V | 208-230V | 110/120V |
| Number of Zones | – | – | – | – | – | Tri Zone | – |
| Smart Compatibility | Alexa, Wi-Fi, remote control | Alexa, Wi-Fi, remote | Alexa, Google Home, Wi-Fi, remote | Alexa, Wi-Fi, remote control | Alexa, Google Assistant, DELLA App | Alexa, mobile app | Alexa, app, remote control |
| Operating Modes | Cooling, heating, dry | Auto, Cooling, Drying, Heating, Fan | Heating, cooling, auto, dry | Cooling, heating, auto, dry | – | – | AC, heat pump, dehumidifier, fan |
| Features | Inverter | Inverter, Cover | Inverter | Inverter | Inverter | Inverter | Inverter, Quiet Operation |
| Control Method | Wi-Fi, Wi-Fi App Control, Wi-Fi App, Voice Control | Wi-Fi, Wi-Fi App Control, Wi-Fi App, Voice Control | Wi-Fi, Wi-Fi App Control, Wi-Fi App, Voice Control | Wi-Fi, Wi-Fi App Control, Wi-Fi App, Voice Control | Wi-Fi, Wi-Fi App Control, Wi-Fi App, Voice Control | Voice Control | Voice Control |
| Color | White | White | White | White | White | White | White |
| Operating Mode | Heater | Heater | Heater | Heater | Heater | Heater | Heater |
| SEER Rating | – | 17 SEER2 | – | 17 SEER2 | 20 SEER2 | – | – |
| Mounting Type | – | – | – | – | – | Wall-Mounted | Wall-Mounted |
| Heat Output | – | – | – | 23,000 BTU | – | – | – |
| Dimensions | 8.66 × 39.8 × 12.4 inches | 7.9 × 31.2 × 11.5 inches | 7.87 × 30.2 × 11.8 inches | 8.66 × 39.8 × 12.4 inches | 8.66 × 39.6 × 12.6 inches | 33.4 × 9.18 × 11.8 inches | 9 × 37 × 12 inches |
| Weight | – | 21.1 pounds | 16.5 pounds | 101 pounds | 26.5 pounds | – | 25 pounds |
| Size | 18,000 BTU – 230V / 21 SEER2 | – | 12,000 BTU 230V – 22 SEER2 | 23,000 BTU 230V – 17 SEER2 | 24,000 BTU – 230V / 20 SEER2 | Tri Zone (3) 9000 BTU | 9000 BTU 110/120V |
| Model | TL-18K2VB-21S-I+O | MAYIHNONuN | 12K2VR-22S-M-I+O | IF-23K2VR-17S-I+O | TC-24K2VR-20S-I+O | SENA-30HF/T | SENL-09CD-16 |
Frequently asked questions
Which alternative offers the highest energy efficiency rating?
The Della Serena 12000 BTU Mini Split leads with a 22 SEER2 rating. This inverter-based unit provides efficient cooling for medium rooms. It also supports voice control with Alexa. The Serena model runs on 230V power and includes heating modes. Its compact design fits smaller spaces while maintaining high efficiency standards.
What is the best option for cooling large rooms?
The Della Vita 24K BTU 20 SEER2 is ideal for larger spaces. It delivers strong cooling power with 24,000 BTUs. This inverter unit operates on 230V and includes Wi-Fi app control. It also supports voice commands via Alexa. The Vita balances power and efficiency for bigger rooms.
Can I control these mini splits using voice assistants?
Yes, all listed alternatives support voice control with Alexa. This feature is consistent across brands like Della, YITAHOME, and Senville. You can manage cooling and heating modes hands-free. The compatibility extends to Wi-Fi app control on most models for remote management from your phone.
Which unit is best for multi-room climate control?
The Senville Tri Zone 28000 BTU Mini Split handles multiple areas. It connects three 9000 BTU indoor units to one outdoor unit. This system allows zoned heating and cooling for distinct spaces. It supports voice control and mounts to walls. It is designed for homes needing separate temperature management in different rooms.
Is there a quieter option for small bedrooms?
The Senville LETO 9000 BTU Mini Split is noted for quiet operation. It is designed for small rooms and runs on 115V power. The unit features an inverter system for stable, low-noise performance. It also includes voice control via Alexa. This makes it suitable for spaces where silence is a priority.
Do these alternatives support both heating and cooling?
Yes, every unit in this list operates as a heat pump. They all include heating modes alongside cooling functions. This dual capability allows year-round comfort control. The systems use inverter technology to adjust output efficiently. You can switch between heating and cooling based on seasonal needs.
What is the most compact unit for tight spaces?
The YITAHOME 12000 BTU Mini Split is highly compact. Its indoor unit measures 31.2 inches wide and 11.5 inches high. It covers up to 750 square feet efficiently. The unit runs on 230V and includes smart features. Its small footprint makes it suitable for rooms with limited wall space.
Which model provides the most heating output?
The Della Econo 23000 BTU Mini Split offers the highest heating output. It delivers 23,000 BTUs of heat for large rooms. This inverter unit runs on 230V and includes Wi-Fi control. It supports voice commands via Alexa. The Econo is designed for powerful performance in larger residential spaces.