The Best Rellytech Mini Splits in 2026: 2 Picks
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Finding the best rellytech mini splits requires checking the specs carefully. We compared 2 models to help you choose the right unit for your space. Rellytech offers white indoor units in various sizes, ranging from compact 12000 BTU models to larger 18000 BTU systems. These units are designed for different power needs, including standard 115V and higher-capacity 230V options. The Rellytech 18000 BTU 230V Mini Split leads this list because it delivers strong performance for large rooms with 230V access. All picks are based strictly on published specifications.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Rellytech 18000 BTU 230V Mini Split Best overall | large rooms with 230V power access | Check price of Rellytech 18000 BTU 230V Mini Split on Amazon |
| 2 | Rellytech 12000 BTU Mini Split Best budget | Standard 115V circuits and quiet rooms | Check price of Rellytech 12000 BTU Mini Split on Amazon |
Our 2 picks
Rellytech 18000 BTU 230V Mini Split
Best for: large rooms with 230V power access
- Cooling Capacity
- 18,000 BTU
- Efficiency Rating
- 19 SEER2
- Voltage
- 208-230V
- Coverage Area
- Up to 1,250 sq. ft.
- Heat Pump
- Heat Pump
- Dimensions
- 9.02 × 40.4 × 12.6 inches
View on Amazon: Rellytech 18000 BTU 230V Mini Split Affiliate link
This Rellytech heat pump delivers 18,000 BTU of cooling and 18,400 BTU of heating for spaces up to 1,250 sq. ft. It runs on 208-230V power and achieves a 19 SEER2 efficiency rating. The unit includes four operational modes and smart eco functionality to optimize energy use. You get four fan speeds and a 90-degree vertical swing for precise airflow control. This system suits homeowners needing robust performance in larger rooms or open areas.
Pros
- 18,000 BTU cooling capacity covers up to 1,250 sq. ft.
- 19 SEER2 and 8.5 HSPF2 ratings ensure energy efficiency
- Includes smart eco function for optimized temperature control
- Offers four fan speeds and 90-degree vertical swing
Cons
- Requires 208-230V electrical connection, not standard 115V
- Indoor unit is 39.6 inches wide, which is bulkier than smaller models
- Weighs 112 pounds, making installation more physically demanding
Good fit if
- You need heating and cooling for a large room or open space
- You have a 230V electrical circuit available for installation
- You want a heat pump with strong efficiency ratings
Skip if
- You only have standard 115V outlets available
- You are cooling a small room under 1,000 sq. ft.
- You prefer a compact indoor unit for tight wall spaces
Verdict: Rellytech 18000 BTU 230V Mini Split is a high-capacity heat pump ideal for larger spaces where 230V power is available. It provides strong cooling and heating performance with efficient energy use for substantial rooms.
Rellytech 12000 BTU Mini Split
Best for: Standard 115V circuits and quiet rooms
- Cooling Capacity
- 12,000 BTU
- Efficiency Rating
- 19 SEER2
- Voltage
- 110/115V
- Coverage Area
- Up to 750 sq ft
- Heat Pump
- Heat pump
- Dimensions
- 11.4 × 31.9 × 8.7 inches
View on Amazon: Rellytech 12000 BTU Mini Split Affiliate link
This Rellytech unit delivers 12,000 BTU of cooling and 12,500 BTU of heating on a standard 115V circuit. It covers spaces up to 750 square feet with a 19 SEER2 efficiency rating. You get four operating modes, including a smart ECO function, and four fan speeds. The indoor unit runs quietly at 42dB, making it suitable for bedrooms. It uses R32 refrigerant for sustainable performance.
Pros
- 12,000 BTU cooling capacity for rooms up to 750 sq. ft.
- 19 SEER2 efficiency rating with 8.5 HSPF2 for heating
- Operates on standard 115V electrical circuits
- Quiet 42dB operation with sleep mode and LED-off function
Cons
- Lower 12,000 BTU capacity compared to the 18,000 BTU option on this list
- Standard remote control without built-in WiFi connectivity
- Requires professional HVAC installation
Good fit if
- You need a mini split that plugs into a standard 115V outlet
- You are cooling a room under 750 square feet
- You want quiet operation for a bedroom or office
Skip if
- You require WiFi control or smart home integration
- You need to cool a space larger than 750 square feet
- You prefer a higher 18,000 BTU cooling capacity
Verdict: Rellytech 12000 BTU 115V Mini Split fits you if you need reliable cooling on a standard 115V circuit for a medium-sized room. It offers solid efficiency and quiet operation, though you should skip it if you need smart connectivity or more power.
Specifications side by side
| Spec | Rellytech 18000 BTU 230V Mini Split | Rellytech 12000 BTU Mini Split |
|---|---|---|
| Cooling Capacity | 18,000 BTU | 12,000 BTU |
| Efficiency Rating | 19 SEER2 | 19 SEER2 |
| Voltage | 208-230V | 110/115V |
| Coverage Area | Up to 1,250 sq. ft. | Up to 750 sq ft |
| Heat Pump | Heat Pump | Heat pump |
| Dimensions | 9.02 × 40.4 × 12.6 inches | 11.4 × 31.9 × 8.7 inches |
| Weight | 112 pounds | not stated |
| Size | 18000BTU,230V,19 SEER2 | 12000BTU-19SEER2-115V |
| Color | White | White |
| Model | CE0-1 | CE0-2 |
Rellytech Mini Split Options Compared
The lineup splits into two clear groups based on voltage and capacity. The Rellytech 18000 BTU 230V Mini Split leads with 19 SEER2 efficiency, designed for large rooms that have 230V power access. This high-capacity unit delivers strong performance for substantial spaces. Its 112-pound weight and 39.6-inch width indicate a robust build for heavier cooling loads. The second group features the Rellytech 12000 BTU Mini Split, which operates on standard 115V circuits. It shares the same 19 SEER2 rating but targets medium-sized rooms. This lighter, more compact model fits standard electrical setups without requiring upgrades. You should choose the 230V model if you need maximum power for a larger area. Select the 115V option if you want reliable cooling on existing wiring. Both units offer efficient operation, but the voltage difference dictates which installation path works for your home.
Where Rellytech Fits Your Needs
Rellytech covers medium to large spaces with two white indoor units. You can choose between a compact 12000 BTU model for standard 115V circuits or a larger 18000 BTU system requiring 230V power. Both share a 19 SEER2 efficiency rating. The 18000 BTU unit measures 39.6 inches wide, while the 12000 BTU version is 31.9 inches wide. Neither model offers smart connectivity. If you need smaller capacities or Wi-Fi control, this brand does not currently provide those options in its lineup.
How to choose the right Rellytech mini split
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Check your circuit voltage
You must match the unit’s voltage to your home’s electrical supply. The Rellytech 18000 BTU model requires a dedicated 230V circuit. This is common for larger systems but may not exist in every room. If you only have standard 115V outlets, you must choose the 12000 BTU model. Using the wrong voltage can damage the compressor or trip breakers. Check your breaker panel before buying. Never assume a standard outlet can handle a high-voltage unit. Correct voltage ensures safe operation and prevents electrical hazards in your space.
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Evaluate SEER2 efficiency
Look at the SEER2 rating to understand energy use. Both Rellytech models offer a 19 SEER2 rating. This is a high efficiency score for cooling. Higher numbers mean lower electricity bills over time. You get strong performance without excessive power draw. Compare this rating against older units in your home. A 19 SEER2 system will run more efficiently than a 14 SEER2 unit. This spec matters for long-term costs. It does not change the cooling capacity, but it affects how much power the compressor uses to maintain your desired temperature.
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Match BTU to room size
Select the BTU capacity based on your room’s square footage. The 12000 BTU unit suits medium-sized rooms. It provides enough cooling without overworking the compressor. The 18000 BTU model is for large spaces. It handles substantial heat loads better. Choosing too low a BTU means the unit runs constantly. Choosing too high causes short cycling. Check your room dimensions first. Do not guess the capacity. Proper sizing ensures consistent temperatures and better humidity control. Match the output to the actual thermal load of the space.
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Measure indoor unit dimensions
Verify the physical size of the indoor unit fits your wall. The 18000 BTU model is 39.6 inches wide. It is also 112 pounds. Ensure your wall can support this weight. The 12000 BTU unit is narrower at 31.9 inches. It is lighter and easier to mount. Check your available wall space before installation. Leave room for airflow around the unit. Measure the height and length as well. These dimensions affect where you can place the unit. Proper clearance ensures efficient air circulation and easier maintenance access for you.
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Confirm installation requirements
Prepare for professional installation requirements. Both units require specific electrical connections. The 230V model needs a dedicated line. The 115V model plugs into standard circuits but still needs a hardwired connection to the breaker. You cannot use a standard plug. Plan for refrigerant line routing. Ensure the outdoor unit has space for ventilation. Check local codes for mounting heights. Professional installers handle the vacuuming and charging. Do not attempt DIY electrical work. Proper setup ensures warranty validity and safe operation of the heat pump system.
Frequently asked questions
What is the best Rellytech mini split for large rooms?
The Rellytech 18000 BTU 230V Mini Split is the top choice for larger spaces. It delivers high capacity cooling and heating with a 19 SEER2 efficiency rating. This unit is ideal if you have access to 230V power in your home. It provides strong performance for substantial rooms while maintaining efficient energy use.
Which Rellytech model works with standard 115V outlets?
The Rellytech 12000 BTU Mini Split is designed for standard 115V circuits. It is a compact option suitable for medium-sized rooms. This model offers solid efficiency and quiet operation. You should choose this unit if you need reliable cooling on a standard circuit without requiring more power or smart connectivity features.
How efficient are Rellytech mini splits?
Both listed Rellytech models feature a 19 SEER2 efficiency rating. This high rating indicates strong energy efficiency for both cooling and heating. The 18000 BTU unit uses this rating to manage large spaces effectively. The 12000 BTU model maintains the same efficiency standard for smaller rooms. You get reliable performance with lower energy consumption in either case.
What are the dimensions of the Rellytech indoor units?
The 18000 BTU unit measures 39.6 inches wide, 9.5 inches high, and 12.4 inches long. It weighs 112 pounds. The smaller 12000 BTU model is more compact, measuring 31.9 inches wide, 8.7 inches high, and 11.4 inches long. Both units come in a white finish to blend with most interior decor styles.
Can I use a Rellytech mini split for heating?
Yes, the Rellytech 18000 BTU 230V Mini Split functions as a heat pump. It provides both cooling and heating performance. This dual capability makes it suitable for year-round climate control in larger spaces. The system uses its 19 SEER2 rating to ensure efficient operation during heating cycles as well.
What voltage do Rellytech mini splits require?
Rellytech offers two distinct voltage options for different electrical setups. The 18000 BTU model requires a dedicated 230V circuit. This is necessary for its high capacity output. The 12000 BTU model operates on a standard 115V circuit. You must verify your home’s electrical supply before installation to ensure compatibility with your chosen unit.