Mini Split Air Conditioners
What Is a Mini Split Air Conditioner?
A mini split air conditioner, also called a ductless AC, is a two-part system that uses an outdoor compressor and one or more indoor air-handling units to cool (and often heat) specific rooms. Unlike central AC, mini splits don’t require ductwork, making them highly efficient and flexible for targeted comfort. They’re available in single-zone and multi-zone setups, with wall, ceiling, and floor-mounted options.
How Mini Split ACs Are Used
- Room Additions: Ideal for spaces not connected to central HVAC, like sunrooms or garages.
- Multi-Zone Homes: Heat or cool multiple rooms independently with one outdoor unit.
- Older Homes: Add modern cooling without the cost or disruption of installing ductwork.
- Energy Savings: Cool only occupied spaces for maximum efficiency.
- Year-Round Comfort: Many mini splits include heat pump technology for both heating and cooling.
Top Brands of Mini Split Air Conditioners
Shop trusted brands known for efficiency, reliability, and advanced technology:
- LG — Sleek indoor units, Wi-Fi connectivity, and strong performance in compact designs.
- Friedrich — High-value systems with strong efficiency ratings and wide product range.
BTU Room Size Chart for Mini Split ACs
Use this BTU chart to size your ductless mini split system. Proper sizing ensures efficient cooling and dehumidification without short cycling.
| Room Size (sq ft) | Recommended BTU Capacity | Typical Usage |
|---|---|---|
| <150 | 6,000 BTU | Small bedroom, office |
| 150–250 | 9,000 BTU | Bedroom, small living room |
| 250–400 | 12,000 BTU | Primary bedroom, office |
| 400–550 | 18,000 BTU | Large living room, open den |
| 550–800 | 24,000 BTU | Great room, basement |
| 800–1,200 | 30,000 BTU | Extra-large space |
| 1,200–1,500 | 36,000 BTU | Multi-room or small apartment |
Note: Add ~10% capacity for kitchens, west-facing sunny rooms, or high ceilings. Oversizing can reduce efficiency—choose the closest correct size or consider multi-zone systems for larger homes.
Top Features to Look For
- Inverter Technology: Variable-speed compressors for quieter operation and major energy savings.
- Heating & Cooling: Heat pump models deliver year-round comfort.
- Multi-Zone Capability: Control multiple rooms with one outdoor unit.
- Wi-Fi & Smart Controls: App-based scheduling, remote adjustments, and voice assistant compatibility.
- Quiet Performance: Indoor units often run under 30 dB for bedroom use.
- Air Filtration: Multi-stage filters improve indoor air quality.
- Flexible Installation: Wall-mounted, ceiling cassette, floor console, or concealed duct options.
- High SEER Ratings: ENERGY STAR® models with SEER ratings 20+ for maximum efficiency.
Frequently Asked Questions
- What’s the difference between a mini split and central AC?
- Mini splits are ductless and cool rooms individually. Central AC requires ducts and cools the entire home.
- Can mini splits heat as well as cool?
- Yes. Most ductless systems are heat pumps, offering efficient heating in addition to cooling.
- How many rooms can a mini split cool?
- Single-zone models cool one space. Multi-zone systems can support 2–8 indoor units connected to one outdoor unit.
- Are mini splits expensive to run?
- No. They’re more efficient than many central and window systems due to inverter compressors and zoned cooling.
- Do they require professional installation?
- Yes. Installation should be handled by licensed HVAC professionals to ensure performance and warranty protection.
- Are mini splits noisy?
- Not at all. Indoor units often run at whisper-quiet levels (25–30 dB), and outdoor units are quieter than traditional central AC compressors.
Why Buy from ShopAppliances.com?
- Wide Selection: From budget-friendly models to high-end systems, we stock proven mini split air conditioners.
- Expert Guidance: Get help sizing your system, choosing single- or multi-zone, and selecting the right BTU capacity.
- Competitive Pricing: Transparent deals on top ductless AC brands.
- Fast Delivery: Nationwide shipping with careful handling and optional services.
- Post-Sale Support: Warranty guidance and responsive customer care for long-term peace of mind.
Stay cool and efficient with the latest mini split air conditioners. Use our BTU chart to size your system and shop trusted brands at ShopAppliances.com.