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This della vs ROVSUN mini split air conditioner comparison looks at two inverter heat pumps. Both units offer quiet operation and smart voice control with Alexa. They share a similar white design and compact indoor dimensions. The main difference lies in capacity and voltage. The Della model provides 12,000 BTU on 230V, while the ROVSUN offers 9,000 BTU on 115V. You need to check your electrical setup and room size before buying.
Cooling Capacity
12,000 BTU
9,000 BTU
Voltage
230V
115V
SEER2 Rating
23 SEER2
20 SEER2
Coverage Area
Up to 550 sq. ft.
Up to 400 sq. ft.
Control Method
Voice Control (Alexa)
Wi-Fi, App, Voice (Alexa/Google)
Smart Sensor
Remote control sensor
Not listed
Choose the first if
- You need more cooling power for a larger room.
- You have a 230V electrical outlet available.
- You want the higher energy efficiency rating.
Choose the second if
- You only have a standard 115V outlet.
- You want to control the unit via a mobile app.
- You are cooling a smaller space under 400 sq. ft.
Verdict
Choose the Della Vario if you need higher capacity and efficiency for a larger room with a 230V circuit. Pick the ROVSUN if you are limited to a 115V outlet or prefer app-based control for a smaller space.
Della vs ROVSUN Mini Split Specs
Coverage area
Edge: DELLA Vario 12K BTU 23 SEER2
The Della Vario 12K BTU unit covers up to 550 square feet. This larger capacity handles bigger rooms or open living spaces effectively. The ROVSUN 9000 BTU model supports areas up to 400 square feet. You should choose the Della if your room exceeds 400 square feet. The ROVSUN is better suited for smaller bedrooms or compact offices. Both units provide adequate airflow for their respective size ratings. Select the model that matches your specific room dimensions for optimal temperature control.
Energy efficiency
Edge: DELLA Vario 12K BTU 23 SEER2
Efficiency ratings differ between the two brands. The Della Vario 12K achieves a 23 SEER2 rating. This higher number indicates superior energy efficiency during cooling operations. The ROVSUN 9000 BTU unit offers a 20 SEER2 rating. While still efficient, it uses more electricity to produce the same cooling output compared to the Della. Higher SEER2 values generally lead to lower monthly utility bills. If minimizing energy consumption is your priority, the Della model provides a clear advantage in operational costs.
Voltage requirements
Edge: ROVSUN 9000 BTU 20 SEER2 Mini Split
Electrical setup varies significantly between these units. The Della Vario 12K requires a 230V power connection. This standard voltage is common for larger mini-split installations. The ROVSUN 9000 BTU operates on 115V power. This allows you to plug it into a standard household outlet without specialized wiring. If you lack a 230V circuit, the ROVSUN is easier to install. Check your home electrical panel before deciding. The voltage difference impacts installation complexity and compatibility with existing infrastructure.
Smart features
Edge: Tie
Both units support voice control via Alexa. The Della Vario includes a smart sensor that measures room temperature at the remote control rather than the indoor unit. This feature adjusts airflow for personalized comfort based on where you are standing. The ROVSUN model adds Wi-Fi app control alongside voice commands. You can adjust settings remotely from your phone. The Della offers precise temperature sensing, while the ROVSUN provides broader remote management options. Choose based on whether you prefer local sensor accuracy or remote app access.
Heating performance
Edge: DELLA Vario 12K BTU 23 SEER2
Both models function as heat pumps for winter warmth. The Della Vario 12K is rated for heating in environments as low as -4°F. This allows it to maintain performance in colder climates. The ROVSUN 9000 BTU provides heating but does not specify a minimum operating temperature in the provided data. Both units include automatic defrost and intelligent compressor pre-heating features. The Della’s specific low-temperature rating gives it an edge in colder regions. Verify local climate needs before relying on heating capabilities during extreme cold.
Which Mini Split Fits Your Space
Large room owners needing powerful cooling
Our pick: DELLA Vario 12K BTU 23 SEER2
The Della Vario offers 12,000 BTU capacity to cover up to 550 square feet effectively. Its 23 SEER2 rating ensures high energy efficiency for larger areas. This unit handles bigger spaces better than the smaller alternative. You get robust heating performance down to -4°F. The higher voltage supports stronger compressor operation for consistent comfort in expansive rooms.
Small rooms seeking efficient quiet operation
Our pick: ROVSUN 9000 BTU 20 SEER2 Mini Split
The ROVSUN 9000 BTU model suits spaces up to 400 square feet perfectly. It maintains ultra-quiet 28 dB operation in mute mode. The 20 SEER2 efficiency rating helps reduce energy consumption for smaller areas. You benefit from precise temperature control in compact rooms. This unit delivers rapid cooling and heating without excessive noise or power draw for modest spaces.
Users wanting smart remote app control
Our pick: ROVSUN 9000 BTU 20 SEER2 Mini Split
The ROVSUN unit features explicit Wi-Fi connectivity for seamless phone app integration. You can set routines and adjust temperatures from anywhere. This direct app control offers convenience beyond standard remote use. While the Della supports Alexa voice commands, the ROVSUN provides dedicated Wi-Fi app management. This allows for easier scheduling and remote adjustments without needing voice commands.
DELLA Vario 12K BTU 23 SEER2
Best for: medium rooms needing smart control
- Cooling Capacity
- 12000 BTU (1 ton)
- Coverage Area
- Up to 550 sq ft
- SEER2 Rating
- 23 SEER2
- Voltage
- 208-230V
- Smart Compatibility
- Alexa, Wi-Fi, remote control
- Features
- Inverter
The Della Vario 12000 BTU mini split offers 23 SEER2 cooling and 9.5 HSPF heating. It covers up to 550 square feet with a 28 dBA indoor unit. Smart features include Alexa voice control and a remote-based temperature sensor. This 230V unit requires professional installation. It suits those needing efficient climate control for medium-sized rooms with smart home integration.
- 23 SEER2 energy efficiency rating
- 28 dBA quiet indoor operation
- Alexa voice control compatibility
- Remote temperature sensing capability
- Heating down to -4°F
- Heavier at 61 pounds
- Limited to -4°F heating minimum
- Requires 230V power connection
- You need efficient cooling for a 550 square foot room
- You want Alexa voice control integration
- You prefer quiet operation at 28 dBA
- You only have 115V outlets available
- You need heating below -4°F
- You are looking for a DIY installation
Verdict: Della Vario 12000 BTU Mini Split provides high efficiency and smart features for medium rooms. It fits users who value quiet operation and Alexa integration, provided they have 230V power and professional installation support.
ROVSUN 9000 BTU 20 SEER2 Mini Split
Best for: small rooms needing efficient quiet cooling
- Cooling Capacity
- 9000 BTU
- Coverage Area
- up to 400 sq.ft.
- SEER2 Rating
- 20 SEER2
- Voltage
- 115V
- Smart Compatibility
- app, Alexa, Google Assistant, remote
- Operating Modes
- cooling, heating, dehumidification
This ROVSUN unit offers 9000 BTU cooling and heating for rooms up to 400 sq.ft. It features a 20 SEER2 rating and inverter technology to adjust compressor speed for energy efficiency. You get Wi-Fi control via app or voice assistants like Alexa. The indoor unit weighs 70 pounds and measures 31.9 inches wide. It operates quietly at 28dB in mute mode, making it suitable for bedrooms or offices.
- 20 SEER2 energy efficiency rating with inverter technology
- Wi-Fi app and voice control compatible with Alexa
- Ultra-quiet 28dB operation in mute mode
- Effective dehumidification and heat pump functionality
- Lower 9000 BTU capacity compared to the 12000 BTU competitor
- Heavier 70-pound indoor unit build
- Requires 115V power connection
- You need a compact unit for spaces under 400 sq.ft.
- You want energy savings with a high SEER2 rating
- You prefer voice control integration with Alexa
- You require more than 9000 BTU for larger rooms
- You only have a 230V electrical outlet available
- You need a lighter unit for easy mounting
Verdict: ROVSUN 9000 BTU Mini Split AC suits those prioritizing energy efficiency and quiet operation in smaller rooms. It fits buyers who value smart home integration and do not need the higher cooling power of a 12000 BTU model.
Specifications side by side
| Spec | DELLA Vario 12K BTU 23 SEER2 | ROVSUN 9000 BTU 20 SEER2 Mini Split |
|---|---|---|
| Cooling Capacity | 12000 BTU (1 ton) | 9000 BTU |
| Coverage Area | Up to 550 sq ft | up to 400 sq.ft. |
| SEER2 Rating | 23 SEER2 | 20 SEER2 |
| Voltage | 208-230V | 115V |
| Smart Compatibility | Alexa, Wi-Fi, remote control | app, Alexa, Google Assistant, remote |
| Operating Modes | – | cooling, heating, dehumidification |
| Features | Inverter | Inverter |
| Control Method | Wi-Fi, Wi-Fi App Control, Wi-Fi App, Voice Control | Wi-Fi, Wi-Fi App Control, Wi-Fi App |
| Color | White | White |
| Operating Mode | Heater | Heater |
| SEER Rating | – | 20 SEER2 |
| Dimensions | 8.07 × 31.9 × 11.5 inches | 7.99 × 31.9 × 11.5 inches |
| Weight | 61 pounds | 70 pounds |
| Size | 12,000 BTU – 230V / 23 SEER2 | 8.07"D x 31.92"W x 11.49"H |
| Model | TL-12K2VB-23S-I+O | RV09T1/20-I/RV09T1/20-O |
Frequently asked questions
Can I control both Della and ROVSUN mini splits with my voice?
Yes, both units support voice control. The Della Vario model is explicitly compatible with Alexa for hands-free operation. The ROVSUN unit offers Wi-Fi app control, which also enables smart integration. You can manage settings remotely or via voice commands depending on your preferred ecosystem.
Do these mini splits work in 115V outlets?
Only the ROVSUN model operates on 115V power. The Della Vario requires a 230V electrical circuit. You must check your home’s wiring before purchasing. Installing the Della unit in a standard 115V outlet is not possible without upgrading the electrical supply to the correct voltage.
Which unit is better for heating in winter?
Both units function as heat pumps and provide heating modes. The Della Vario delivers 12,000 BTUs, making it suitable for larger spaces. The ROVSUN provides 9,000 BTUs, which is adequate for smaller rooms. Both inverters adjust speed to maintain temperature efficiently during colder months.
How wide are the indoor units?
Both indoor units share nearly identical width dimensions. The Della Vario measures 31.9 inches wide. The ROVSUN model is 31.92 inches wide. This similar footprint means they will fit in comparable wall spaces. You can use the same mounting brackets for either unit in most cases.
Are these units inverter-based for energy savings?
Yes, both brands use inverter technology. The Della Vario achieves a 23 SEER2 rating. The ROVSUN unit reaches 20 SEER2. Inverters adjust compressor speed to match demand, reducing energy waste compared to traditional on-off cycling. This results in lower electricity bills and more consistent temperatures.
Which mini split is lighter to install?
The Della Vario is lighter at 61 pounds. The ROVSUN unit weighs 70 pounds. A lighter indoor unit may simplify mounting on the wall. Both units include outdoor components, but the indoor weight difference is minimal. Ensure your wall can support the total system weight regardless of the choice.

