Hey, friends! Savvy Mavi here. If you’ve been researching ways to cool and heat your home efficiently, you’ve probably run into terms like mini split AC, ductless mini split, or split air conditioner. These systems have become game-changers for modern homes, apartments, and rooms that need precise temperature control. Today, we’re exploring how mini split systems work, how to choose the right split AC unit, and how they complement a central system like the Goodman 3-Ton 14.5 SEER2 R-32 Bundle.
Why Mini Split AC Systems Are So Popular
Unlike traditional central air systems, mini splits are:
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Ductless, meaning no ductwork is required
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Flexible, with multiple indoor unit options (wall-mounted, floor console, ceiling cassette)
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Energy-efficient, because you only cool or heat the rooms in use
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Easier to install, especially in older homes
Mini splits are perfect for:
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Single rooms or additions without ducts
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Small offices or apartments
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Garage conversions
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Rooms that central AC struggles to reach
According to Energy Star, mini split heat pumps can save 30–40% on energy costs compared to window units or baseboard heaters.
Types of Mini Split AC Units
1. Single-Zone Mini Split
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One outdoor condenser connected to one indoor unit
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Ideal for cooling/heating one room
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Often called single split aircon or small mini split AC
2. Multi-Zone Mini Split
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One outdoor condenser can connect to multiple indoor units
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Perfect for cooling/heating several rooms independently
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Known as mini split AC and heat systems or split AC systems
3. Ductless Mini Split Systems
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No ductwork needed, just refrigerant lines and electrical
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Provides both heating and cooling (mini split heat and air)
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Easier to install than retrofitting ducts in older homes
4. Wall-Mounted, Floor, and Ceiling Units
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Wall-mounted: Most common for bedrooms or living rooms
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Floor console: Ideal for spaces with low ceilings
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Ceiling cassette: Perfect for larger rooms or open-concept spaces
For a comprehensive breakdown of mini split options, see HVAC School’s mini split guide.
How Mini Split AC Works
At its core, a split AC unit has:
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Outdoor Condenser – Compresses and circulates refrigerant
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Indoor Air Handler – Cools or heats the room air
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Refrigerant Lines – Connects indoor and outdoor units
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Thermostat/Remote Control – Lets you adjust settings room by room
Unlike traditional central systems, each indoor unit can be individually controlled. This gives you comfort where you need it and energy savings where you don’t.
How Mini Split AC Complements Central Systems
If your home already has a central system like the Goodman 3-Ton SEER2 R-32 Bundle, a mini split can:
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Provide extra cooling in hot spots
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Heat rooms without running the entire furnace
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Reduce energy bills by targeting specific rooms
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Offer quieter operation than a whole-house AC
In other words, mini splits are the perfect add-on AC units for central systems.
Sizing Your Mini Split System
Choosing the right mini split AC unit is crucial. Oversizing can cause short cycling, while undersizing won’t keep the space comfortable. Here’s a quick guide:
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Small room (150–300 sq ft): 6,000–9,000 BTU
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Medium room (300–500 sq ft): 9,000–12,000 BTU
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Large room (500–700 sq ft): 12,000–18,000 BTU
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Open spaces or multiple rooms: Consider multi-zone mini splits
For a more technical approach, check out the U.S. Department of Energy’s guide on mini split sizing.
Cost of Mini Split Systems
Mini splits vary depending on:
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Size (BTU rating)
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Number of indoor units (single-zone vs. multi-zone)
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Brand and energy efficiency
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Installation complexity
Typical prices:
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Single-zone: $1,500–$3,500 installed
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Multi-zone: $3,500–$8,000 installed
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Largest mini split systems (up to 5 zones): $8,000–$12,000+
Mini splits are an investment, but Energy Star highlights long-term savings from energy efficiency.
Installation Tips
1. Professional Installation is Recommended
Even though mini splits are simpler than central AC, proper installation ensures efficiency and longevity.
2. Placement Matters
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Indoor unit should be high on a wall, away from obstructions
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Outdoor condenser should have adequate airflow and clearance
3. Electrical Requirements
Ensure your circuit can handle the unit. Multi-zone systems may need a dedicated 240V line.
4. Maintenance
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Clean filters every 2–4 weeks
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Check refrigerant lines for leaks
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Schedule annual professional servicing
For DIY tips and detailed procedures, see The Home Depot's mini split installation guide.
Mini Split vs. Window AC vs. Central AC
| Feature | Mini Split AC | Window AC | Central AC |
|---|---|---|---|
| Energy Efficiency | High | Medium | Medium |
| Noise | Low | Medium | Low |
| Installation | Moderate | Easy | Complex |
| Room Control | Yes | Single room | Whole house |
| Aesthetics | Sleek | Bulky | Hidden |
Mini Splits for Sale
At The Furnace Outlet, you can find a wide selection of mini splits for sale, including single-zone and multi-zone options. These units pair perfectly with Goodman’s central systems or standalone in homes without ductwork.
Choosing the Right Brand
When shopping for split system air conditioners:
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Look for energy efficiency ratings
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Check warranty and service options
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Compare BTU capacities with your room sizes
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Read customer reviews
Reliable brands ensure your mini split AC and heat system lasts for years without costly repairs.
Benefits of Ductless Air Conditioners
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Zone-specific heating/cooling
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Lower operating costs
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Flexible installation
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No duct losses
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Improved indoor air quality
Key Takeaways
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Mini splits are flexible, energy-efficient, and perfect for single rooms or additions.
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They can complement or even replace portions of central AC.
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Proper sizing, installation, and maintenance are crucial.
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Goodman’s 3-Ton SEER2 bundle is an excellent backbone system to pair with mini splits.
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Investing in high-quality units pays off in comfort and energy savings.
Mini splits are more than just a cooling solution—they’re a lifestyle upgrade. Whether you’re seeking a small mini split AC for a bedroom, the largest mini split for a multi-zone setup, or a ductless AC system for a retrofit, understanding your options will save you time, money, and frustration.
