When it comes to effective heating systems, heat-only mini splits provide reliable, energy-efficient solutions that can keep your home warm during colder months without the bulk of traditional systems. Below is a selection of top-rated mini splits from Amazon, focusing on heating performance combined with versatile features such as inverter technology, quiet operation, and easy control options. These units cover a range of room sizes and include modern conveniences like WiFi compatibility for smart home integration.
| Product | BTU Capacity | Coverage Area | Key Feature |
|---|---|---|---|
| COSTWAY 12000BTU Mini Split AC & Heater | 12,000 BTU | Up to 750 sq. ft. | Inverter with 5 modes & quiet operation |
| ROVSUN 9000 BTU Wifi Enabled Mini Split | 9,000 BTU | Up to 400 sq. ft. | Energy-saving inverter & whisper-quiet |
| Confortotal 12000 BTU Mini Split AC & Heat Pump | 12,000 BTU | Up to 550 sq. ft. | WiFi compatible with Alexa |
| Manastin 12000BTU Mini Split AC & Heater with Inverter | 12,000 BTU | Up to 750 sq. ft. | Eco-friendly R32 refrigerant & multi-mode support |
| YITAHOME 18000 BTU Mini Split AC & Heat Pump | 18,000 BTU | Up to 1,250 sq. ft. | WiFi & Alexa compatible with advanced filtration |
Content Navigation
- COSTWAY 12000BTU Mini Split Air Conditioner & Heater
- ROVSUN 9000 BTU Wifi Enabled Mini Split Air Conditioner & Heater
- Confortotal 12000 BTU Mini Split Air Conditioner and Heat Pump
- Manastin 12000BTU Mini Split Air Conditioner & Heater with Inverter
- YITAHOME 18000 BTU Mini Split Air Conditioner Heat Pump System
- Buying Guide for Heat-Only Mini Splits
COSTWAY 12000BTU Mini Split Air Conditioner & Heater

This COSTWAY 12000BTU mini split combines an energy-efficient heat pump with inverter technology to deliver reliable heating and cooling for rooms up to 750 square feet. It features five operation modes: auto, cool, dry, heat, and fan, complemented by four fan speeds, sleep mode, ECO mode, and turbo functionality. The innovative inverter reduces power consumption by adjusting compressor speed instead of frequent cycling, ensuring quieter operation and a longer system lifespan. A handy remote control and a 0.5-24 hour timer allow easy, quiet management without disturbing sleep.
ROVSUN 9000 BTU Wifi Enabled Mini Split Air Conditioner & Heater

The ROVSUN 9000 BTU mini split provides powerful heating and cooling ideal for rooms up to 400 square feet. Equipped with inverter technology yielding a 19 SEER2 energy rating, it adjusts compressor speed based on temperature needs, offering up to 35% energy savings. The system operates at a whisper-quiet 28 dB on mute mode, ensuring a peaceful environment. Its effective dehumidification feature and wide temperature range from 61°F to 88°F make it a reliable choice for year-round comfort, especially suited for bedrooms and small living spaces requiring efficient heat-only configurations.
Confortotal 12000 BTU Mini Split Air Conditioner and Heat Pump

This mini split with a 1-ton heat pump effectively heats or cools rooms up to 550 square feet. It stands out with WiFi compatibility allowing control via Alexa or smart home devices, enhancing convenience and automation. Designed for efficient ductless operation, it offers controlled, quiet heating without bulky installations, making it ideal for residential applications where a dependable heat-only mini split is desired alongside integrated cool functions.
Manastin 12000BTU Mini Split Air Conditioner & Heater with Inverter

The Manastin model offers energy-efficient heating and cooling for rooms up to 750 sq. ft., utilizing R32 refrigerant for a greener footprint. Its inverter technology allows quiet operation and five functional modes: Cooling, Heating, Auto, Fan, and Dry. Fans can be adjusted across four speeds to regulate airflow. Additional features include Turbo Boost for rapid temperature changes, ECO mode for energy saving, Sleep mode, and a 24-hour timer for scheduling, catering to varied comfort preferences throughout the colder months.
YITAHOME 18000 BTU Mini Split Air Conditioner Heat Pump System

The YITAHOME 18000 BTU mini split is a high-capacity unit designed for larger spaces up to 1,250 square feet. It combines a heat pump with 19 SEER2 efficiency and inverter technology resulting in up to 25% energy savings. The unit supports WiFi and Alexa control, plus offers advanced filtration including negative ions, electrostatic dust removal, and PM2.5 filtering, which improves indoor air quality. Its quiet operation at under 47 decibels makes it suitable for various residential and light commercial uses where robust heating performance is needed.
Buying Guide for Heat-Only Mini Splits
Choosing the right heat-only mini split requires understanding key factors that impact performance, energy efficiency, and comfort. Here are essential considerations:
Heating Capacity and Room Size
Measure the square footage of the area you need to heat. Mini splits come in various BTU ratings—9000 to 18000 BTU models typically cover spaces ranging from 400 to 1250 square feet. Selecting a unit that matches the room size ensures efficient heating without excessive energy use.
Inverter Technology
Models with inverter compressors adjust the speed to meet temperature demands continuously, offering energy savings and quieter operation versus conventional on/off compressors. Look for units with inverter technology for improved efficiency and durability.
Energy Efficiency Ratings
Check SEER (Seasonal Energy Efficiency Ratio), HSPF (Heating Seasonal Performance Factor), and certifications such as AHRI or ETL. Higher SEER and HSPF numbers indicate better energy efficiency, saving money on your utility bills.
Heating-Only Versus Heat Pump
Heat pumps provide both heating and cooling functions, making them versatile for year-round use. If you specifically want heating only, some models or settings disable cooling. Consider your climate and whether you want a dual-function system for the best value.
Noise Levels
Review decibel ratings to ensure the system runs quietly. Models with noise levels below 30 dB are ideal for bedrooms or offices where minimal disruption is essential.
Installation Requirements and Accessories
Check if the mini split comes with the installation kit or mounting brackets, especially for outdoor compressors. Professional installation may be necessary depending on unit complexity and refrigerant handling.
Smart Features and Controls
WiFi and voice assistant compatibility provide convenient remote control and scheduling. Features like sleep mode, timers, and adjustable fan speeds add to comfort customization.
Environmental Impact
Choosing units using eco-friendly refrigerants like R32 reduces environmental harm. Many modern mini splits list refrigerant type and emphasize greener operation in their specifications.