How Much Does a Mini Split Air Conditioner Unit Cost?

What Are Mini Split Systems?

Mini split air conditioners are ductless systems that have an indoor unit that connects directly to an outdoor unit without the use of ducting, which makes them less prone to air leakage. Typical ducting systems lose between 25% and 40% of heated or cooled air through ducting systems, the U.S. Department of Energy reports.

Due to their increased energy efficiency, mini split air conditioners are a good choice for homes with no ductwork installed, or for rooms where extending ductwork is not feasible. Let’s take a look at costs to install a mini split AC unit.

Average Cost Range of Mini Split AC Systems

As noted, there are a wide range of factors that affect the cost of installing a mini split AC system. On average, though, homeowners can expect to pay about $4,500.

Low-End Mini Split AC Pricing

Entry-level wall-mounted mini split air conditioners can be installed for as little as $1,200. However, costs could run closer to $4,500 depending on the unit size, features, and difficulty of installation.

Mid-Range Mini Split AC Pricing

Homeowners can expect to pay between $3,100 and $9,000 for a multi-zone 1.5-4 ton mini split AC system with some premium features.

High-End Mini Split AC Pricing

Costs for luxury, multi-zone mini split air conditioners could cost between $10,000 and $16,000. Multi-zone systems have additional air handling units in different rooms and require a larger outdoor compressor.

Mini Split AC Installation Costs

There are three main parts required to install a mini split air conditioner: an outside condenser, indoor air handling units, and refrigerant, power, and drain lines that link the two main components together.

Labor

Labor costs could run between $300 and $2,000 depending on the size of the system, number of indoor units, and type of installation — single-zone wall-mounted units are typically easier for HVAC contractors to install than multi-zone ceiling-mounted units.

Materials

Mini split AC systems can be purchased as kits with all the necessary installation materials, such as refrigeration and drainage lines and mounting hardware. Purchased separately, these materials could cost between $300 and $800.

Permits and Inspections

Permitting costs vary by jurisdiction but typically cost between $200 and $400.

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Factors Affecting Mini Split Air Conditioner Cost

Many different factors come into play when determining the cost of a mini split AC system.

Size and BTU Capacity

Size is perhaps the primary factor in mini split AC costs. The size of AC units are denoted in British Thermal Units (BTUs) or tons. A one-ton AC unit has a cooling capacity of about 12,000 BTU. Units with greater tonnage or BTU are larger and more expensive than smaller units.

Brand and Manufacturer

Think of AC units like vehicles — there are base-level models and luxury models with a host of premium options. Some mini split AC manufacturers offer entry-level models, while others make deluxe high-end units featuring the most modern technologies.

Installation Complexity

Regular HVAC systems use a system of ducts to move air throughout the home, which increases the time complexity of the installation process. Ductless mini split systems do not need ducts, so the installation process can be easier; however, an HVAC contractor still will need to mount the indoor air handling unit, as well as drill a hole through the wall for a conduit that holds the refrigerant, power and drain lines.

Additional Features and Technology

Premium mini split AC features include multi-room sensors, wireless remote control, connected thermostats, and wireless local-area-network modules.

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Additional Mini Split AC Cost Considerations

Additional cost considerations for mini split AC systems include:

Size

Size is one of the biggest cost considerations for any type of air conditioning system. Larger systems provide greater cooling capacity and are more expensive than smaller mini split AC systems.

Energy Efficiency

Mini splits with higher energy efficiency ratings will cost more than less-efficient models. Energy efficiency for new AC units is measured in SEER2 rating. Higher SEER2 ratings translate to increased energy efficiency. These units cost more upfront but pay homeowners back over time through lower monthly energy usage and reduced operating costs.

Maintenance and Servicing Expenses

Most homeowners can change the unit’s air filters themselves. Professional servicing includes cleaning the unit’s fan blades and evaporator coil in the outdoor condenser, as well as full inspection of the system’s hardware, refrigeration, and drainage lines. Annual inspection is recommended.

Extended Warranties or Protection Plans

Mini split AC manufacturers typically offer excellent standard warranty plans. Homeowners can opt to purchase extended warranties that can provide an additional five or more years of coverage.

Cost-Saving Tips For Buying A Mini Split AC System

A top-of-the-line multi-zone mini split AC system could set you back $10,000 or more. Here are a few suggestions to keep the budget in a more reasonable range.

• Get your system installed after the summer is over. HVAC contractors are busiest in the dead of summer and middle of winter. Hiring a contractor in early spring or late fall could help you avoid higher labor charges.
• Start small. Purchasing a single-zone system will keep installation costs down, and you can add additional zones as necessary over time.
• Do your research. Comparing brands could lead to significant savings on a new mini split AC system. Similarly, comparing quotes from a minimum of three licensed HVAC contractors could lead to notable savings on installation and labor costs.
• DIY installation. Skilled homeowners may be able to install a mini split AC system. You still might have to hire an electrician and get a permit, though.

Is a Mini Split AC System Right for Me?

Mini split AC systems are a great cooling choice for homes that lack existing ductwork. Since they don’t require any ducting, they offer increased energy efficiency over standard AC units, which can lose as much as 40% of cool air as it travels through the ductwork.

Homeowners will pay an average of $4,500 for a new mini split AC system. However, costs could be much lower or higher depending on your home’s cooling needs. It’s a big investment that likely requires cautious budgeting, but you’ll be paid back in spades through increased comfort and lower energy bills.

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