Mini split systems that include heating and cooling deliver flexible, efficient temperature control without ductwork. Below is a quick comparison of five well-matched models chosen for energy efficiency, inverter technology, smart features, and coverage. Use the table to match capacity, typical room size, and standout features at a glance.
| Model | Capacity | Coverage | Standout Feature |
|---|---|---|---|
| COSTWAY 12000BTU (Blast Series) | 12,000 BTU | Up To 750 Sq. Ft. | 20 SEER2 Inverter, Quiet Operation |
| DELLA Serena 12000 BTU | 12,000 BTU | Up To 550 Sq. Ft. | WiFi & Voice Control, 22 SEER2 |
| YITAHOME 12000 BTU | 12,000 BTU | Up To 750 Sq. Ft. | WiFi, Health Mode, 20 SEER2 |
| Mountman 12000 BTU | 12,000 BTU | Up To 750 Sq. Ft. | Auto-Maintain, Self-Cleaning |
| MRCOOL 18000 BTU Easy Pro | 18,000 BTU | Up To 800 Sq. Ft. | Higher Capacity, DIY Friendly |
Content Navigation
- COSTWAY 12000BTU Mini Split Air Conditioner & Heater
- DELLA Serena 12000 BTU Mini Split AC & Heat Pump
- YITAHOME 12000 BTU Mini Split AC Heat Pump System
- Mountman 12000 BTU Mini Split AC/Heating System
- MRCOOL 18000 BTU 230V Ductless Inverter Mini Split (Easy Pro)
- Buying Guide: How To Choose The Best Mini Split AC With Heater
COSTWAY 12000BTU Mini Split Air Conditioner & Heater
The COSTWAY Blast Series 12,000 BTU mini split combines cooling and heating via a 1-ton heat pump and inverter compressor. The unit is AHRI certified and designed to reduce on/off cycling with inverter technology, which helps lower power consumption and extend component life. It offers five operating modes: Auto, Cool, Dry, Heat, and Fan, plus four fan speeds, sleep and ECO modes, iFEEL and turbo.
Controls include a remote with a 0.5–24 hour timer and an auto-dimming display for undisturbed sleep. The product emphasizes quiet operation and energy efficiency, suitable for larger single rooms or open-plan areas up to the stated coverage. Installation requires a wall opening and outdoor condenser connection; it ships pre-charged to simplify setup.
DELLA Serena 12000 BTU Mini Split AC & Heat Pump
The DELLA Serena 12,000 BTU system targets energy savings and smart home integration. With a higher 22 SEER2 rating and inverter heat pump, it is AHRI certified and designed for rooms up to 550 sq. ft. The unit supports WiFi, Alexa, and Google Home, plus a DELLA app with geo-location to adapt operation based on occupancy.
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Other features include multi-directional 4D airflow, iFEEL temperature sensing, 24-hour timer, sleep and ECO modes, and a mute setting reaching as low as 23 dBA. The system includes a 16.4 ft installation kit and a pre-charged condenser for simplified site work. Maintenance is described as seasonal filter cleaning.
YITAHOME 12000 BTU Mini Split AC Heat Pump System
YITAHOME’s 12,000 BTU option is a WiFi-enabled inverter mini split with a stated coverage of up to 750 sq. ft. The unit highlights energy efficiency via an inverter compressor, claiming about 25% energy savings over non-inverter designs, and comes ETL and AHRI certified.
Operation modes include auto/cool/dry/heat/fan, plus an energy-saving “HEALTH” mode incorporating negative ions, electrostatic dust removal, and PM2.5 filtration. The system offers auto-defrost, self-diagnosis and cleaning, iFEEL, and a sleep timer. Noise levels are listed below 41 dB, and voice control compatibility is noted for Alexa.
Mountman 12000 BTU Mini Split AC/Heating System
Mountman’s 12,000 BTU unit emphasizes practical upkeep and reliable year-round comfort. It supports four core modes—Cool, Heat, Dry, Fan—with multiple fan speeds, Sleep and ECO modes, and Turbo Boost. The unit lists an ultra-quiet sleep setting around 26 dB and claims ECO operation can save up to 30% energy.
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Maintenance-focused features include self-clean and automatic defrost functions to prevent mold and odors by drying the indoor unit and a washable anti-dust filter. The product is presented with a pre-charged condenser and installation kit for faster setup. These features suit homeowners prioritizing low-maintenance operation.
MRCOOL 18000 BTU 230V Ductless Inverter Mini Split (Easy Pro)
MRCOOL’s Easy Pro 18,000 BTU mini split provides higher capacity for larger or open-plan spaces, covering up to 800 sq. ft. It’s a ductless inverter system with combined cooling and heating capabilities suitable for whole-season use.
This model emphasizes DIY-friendly installations typical of the Easy Pro series and is positioned for those needing increased capacity without full HVAC replacement. It includes an inverter compressor and is intended for residential and light commercial spaces where higher BTU output is required.
Buying Guide: How To Choose The Best Mini Split AC With Heater
Selecting the right mini split that includes a heater depends on several technical and practical factors. Below are essential considerations and comparison perspectives to ensure you match system performance to real-world needs.
Capacity And Room Size
Calculate the required BTUs based on room square footage, ceiling height, insulation, and heat-generating sources. As a general guide, 9,000–12,000 BTU units suit bedrooms and medium living spaces; 18,000+ BTU models are better for large rooms or open layouts. Oversizing can cause short-cycling and higher energy use; undersizing may not maintain comfort.
Efficiency Ratings (SEER2 And HSPF)
Look for SEER2 (cooling efficiency) and HSPF or comparable heating metrics. Higher SEER2 ratings indicate better efficiency for cooling, which lowers operating costs. Inverter-driven compressors generally offer superior part-load efficiency and quieter operation.
Heating Performance And Low-Temperature Operation
Check the heat pump’s operating range and rated performance at low outdoor temperatures. Some heat pumps provide efficient heating down to around 5°F or lower with dedicated defrost cycles; confirm if the unit lists cold-weather capability if you live in a cold climate.
Noise Levels And Comfort Features
Indoor noise ratings (dB) matter for bedrooms and media rooms. Look for specified mute or sleep modes and multi-speed fans. Features like iFEEL, 4D airflow, and adjustable vanes improve zone comfort and air distribution.
Smart Controls And Connectivity
WiFi, app control, and voice assistant compatibility (Alexa/Google) enable remote scheduling and energy optimization. Geo-fencing and timers can reduce runtime when unoccupied. Remote controls remain useful for direct, local adjustments.
Installation Requirements And Kit Contents
Review whether the unit is pre-charged and the included line length in the installation kit. Pre-charged condensers simplify setup and reduce refrigerant handling. Consider electrical requirements (115V vs 230V) and whether DIY installation is appropriate or you’ll hire an HVAC technician.
Maintenance And Filtration
Reusable/washable filters simplify upkeep. Self-clean, auto-defrost, and self-diagnosis features reduce maintenance burden. If indoor air quality is important, look for PM2.5 filtration, electrostatic dust removal, or ionization features.
Warranty, Certification, And Support
Check AHRI, ETL/UL listings, and manufacturer warranty terms. AHRI certification verifies performance claims. Local support availability and warranty coverage for compressor and parts are important for long-term reliability.
Comparison Perspectives
- Efficiency vs. Budget: Higher SEER2 units cost more up front but typically save more on energy bills over time.
- Capacity vs. Noise: Larger capacity units may produce more noise; look for sleep/mute modes and sound-dampening design.
- Smart Features vs. Simplicity: WiFi and voice control add convenience but may require network setup and updates; simple remotes are straightforward and reliable.
- DIY Installation vs. Professional Install: Some brands offer DIY-friendly kits; complex installs or 230V systems often need a licensed technician to meet codes and ensure optimal refrigerant charge.
Use these criteria to compare models on energy ratings, coverage, control options, and maintenance needs. Matching unit size and features to your climate and living space will deliver the best year-round performance.
Tips for Getting the Best HVAC Prices
- Prioritize Quality Over Cost
The most critical factor in any HVAC project is the quality of the installation. Don’t compromise on contractor expertise just to save money. - Check for Rebates
Always research current rebates and incentives — they can significantly reduce your overall cost. - Compare Multiple Quotes
Request at least three estimates before making your choice. You can click here to get three free quotes from local professionals. These quotes include available rebates and tax credits and automatically exclude unqualified contractors. - Negotiate Smartly
Once you've chosen a contractor, use the proven strategies from our guide — How Homeowners Can Negotiate with HVAC Dealers — to get the best possible final price.