Ductless Mini-Splits: 2022 Installation Cost Guide

Heather Robbins
by Heather Robbins

There are many different types of air conditioners on the market. Before you purchase any of them, it’s essential to know the amount of square footage that you need to cover, as well as any costs that surround this purchase. For this cost guide, we’re going to focus primarily on ductless micro split air conditioning. So, how much would this cost?

The average mini-split AC installation cost is $5,100 including the unit, materials, and labor. Simple mini-split ac units that can cover 350 square feet cost an average of $3,500. You can expect to spend $1,600 to replace key components of a mini-split air conditioner.

Use this guide to price your mini split ductless air conditioning unit accurately. That way, you can get an idea of the size you will need and exactly how much that will cost you.

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Mini Split Installation Cost

Average Cost
LowAverageHigh
$1,500$5,000$,8,500

The price for a mini split ductless system highly depends on the number of rooms you have; the more rooms you have, the higher your cost will be.

The cost of a single ductless air conditioner unit is about $1800, and around $2500 for two ductless air conditioners. It would cost about $3000 to install three ductless air conditioners as well as about $3800 + for four or more ductless air conditioners.

Ductless Air Conditioner Installation

To install a ductless air conditioning system, you’ll need a qualified AC installer who can verify that all pipes, cables, valves, and drains are properly placed and operating. But, before we look for a reputable installer, let’s have a look at how these systems operate. This will assist you in comprehending the procedure and determining your contractor’s level of expertise.]

Find out what do if your Window Air Conditioner Leaking Water?

Ductless Split AC system

There are three key components to the split system. Outside is the compressor, inside is the air outlet (air handler), and there is a remote control. The compressor and the interior air exit can be separated by up to 50 feet and still work correctly.

Copper tubing, which links the exterior and interior units, was also used in the installation. The tube transports the refrigerant required to run the system. A plumbing connection is also required to drain the system’s collected condensate. A line can be installed into an indirect drain in the household, such as the drain for the washing machine, or a dedicated drain can be installed.

Multi-split Ductless AC system

The multi-split system employs the same equipment as the split system but only has one air exit. Up to five air outputs can be found in a multi-system. Because each air outlet is linked to the compressor separately, the multi-split system needs additional copper tubing and wiring.

What Size Mini Split AC Unit Do I Need?

You’ll want to install a ductless mini split unit with the BTU capabilities to properly handle the temperature of your house, depending on the size of your property or the rooms that require heating and cooling.

A micro split unit capable of producing 9,000 BTUs is required to cool or heat a 400 square foot space. Below is a complete list of room sizes and cooling capacities.

Ductless Heat Pump Size Needed

Heat Pump Size Needed
BTUs NeededRoom ( SQ FT)
6,000 BTUs150 to 250 SF
7,000 BTUs250 to 300 SF
8,000 BTUs300 to 350 SF
9,000 BTUs350 to 400 SF
10,000 BTUs400 to 450 SF
12,000 BTUs450 to 550 SF
14,000 BTUs550 to 700 SF
18,000 BTUs700 to 1,000 SF
21,000 BTUs1,000 to 1,200 SF
23,000 BTUs1,200 to 1,400 SF
24,000 BTUs1,500 SF+

How Much Does an HVAC Replacement Cost?

Your estimate is based on data from hundreds of home contractor projects performed in 2019 across the US. RSMeans data, a cost database used by construction professionals to develop budgets, estimate projects, and check the material, equipment, and labor prices, gave this information.

Mini Split vs. Multi Split AC

Mini split air conditioners and multi split air conditioners are identical machines that use a heat pump to push heat in and out as well as refrigerant to chill the air that is pushed through.

Mini split AC units, on the other hand, have several air handlers inside that regulate the temperature of the pushed air and just one thermostat to manage each room with the same temperature output.

You may have various temperature settings in each room that has a ductless wall unit installed if you install a multi-split air handler. If you’re thinking of replacing your entire HVAC system, evaluate if the expenses of a new air conditioner and furnace are worth it.

Single Zone vs. Multi-Zone Installation

The number of zones your home will require is determined by its layout, size, daily usage, and budget. There are two sorts of ductless systems, as previously stated. The first is a small split ductless air conditioner with one compressor and one air conditioner outlet and is designed to chill your home at a single temperature.

A multi-split zone air conditioner system, on the other hand, has one outside HVAC unit that links to up to five inside ductless air units, which are frequently installed on interior walls and can maintain varied temperatures for each separate room and unit combination.

Difference Between Ductless AC and Central AC

The way treated air is circulated throughout the property is the major difference between central air systems and ductless mini split AC units. Cool air must pass through a few inches of thin cable wire in ductless air conditioning systems. On the other hand, central air conditioning necessitates the use of ducts or vents for cold air to circulate.

A central air conditioning system would be quite affordable if you already have ducts or vents in place. However, because the air must travel through ducts before being cooled, part of it is wasted in your home’s unconditioned regions. As a result, the system is less efficient overall, which might lead to higher electricity costs.

The cost of installing a central air conditioner is generally higher than the cost of installing a ductless system. Ductless systems, on the other hand, will not be suitable for homes greater than 2500 square feet.

In that situation, a central air conditioner will be a superior long-term alternative for meeting your heating and cooling demands. In comparison to ductless small systems, central air conditioning can withstand significantly lower temperatures.

Is Ductless Mini-Split AC Cheaper than Central AC?

Yes, one of the most significant advantages of ductless air conditioning is the cost savings. Heating and cooling systems lose significant thermal energy through the ducts. When using ducts to cool your home, the cold air will be warmed by the hotter air outside the ducts as it circulates.

Even the best-insulated ducts will allow some of the cooled air to escape into the surrounding environment. That implies that a large amount of cooled air is wasted via external walls and other non-essential sections of the house when using a central air conditioner.

Ductless air conditioners, on the other hand, distribute heat precisely where it is required. Because there are no ducts to worry about, no cold air is wasted with ductless air conditioning; instead, the system turns on, and heat enters the area immediately.

Unlike a traditional HVAC system, which utilizes a single thermostat to manage temperature throughout the home, a ductless system includes individual thermostats for each unit. This enables customized temperature settings in each room with a ductless AC unit, resulting in increased efficiency and lower utility expenditures.

Other Benefits

  • Installation expenses are usually lower than central HVAC systems since there is no ducting.
  • Because it does not require the same amount of physical space as ducts, installation is typically less disruptive to your current home.
  • Indoor air outlets used with ductless split systems can be mounted against the wall, flat against the ceiling, or recessed into the ceiling.
  • The outlets on ductless multi-split air conditioning systems are available in various colors and designs to match the decor.
  • Multi-zone systems also offer the benefit of employing two to five air outlets, allowing for a single air outlet placement in numerous rooms. For individual room management, each air outlet has its own thermostat.
  • Because ducts are not required, ductless systems allow you to recover closet space or even have higher ceilings.
  • What to Look for in a Ductless Air Conditioner
  • When choosing a ductless mini or multi split air conditioner, keep these energy rating factors in mind. It will assist you in saving money on utility costs.

Energy Star Certification

Keep an eye out for the ENERGY STAR label. The Environmental Protection Agency and the United States Department of Energy have evaluated and approved Energy Star ductless HVAC systems.

EER and SEER are two acronyms for “energy efficiency ratio” and “seasonal energy efficiency rating.” Look for a high EER and SEER (Seasonal Energy Efficiency Rating). A greater efficiency rating will raise the cost of the ductless AC system, but it will pay for itself over time since the unit will be less expensive to run.

BTUs

When you’re looking for a unit, you’ll notice that BTUs are mentioned. It is a measure of power that stands for British Thermal Units. The more BTUs you need to keep your space cool, the bigger it is.

Estimate your demands using an online BTU calculator or chart depending on the square footage of each room. A 150-square-foot room, for example, may require up to 5000 BTUs. 10,000 BTUs are required for a 500-square-foot space, whereas 28,500 BTUs are required for a 1,960-square-foot area.

Typical mini-split systems have a SEER of 15 and work on 230 volts, as an example. This system provides excellent energy efficiency of 22,000 BTU. Approximately 1500 square feet can be covered by it.

Ductless AC Labor Costs

Mini-split systems are well known for their comfort and energy efficiency. However, neither of these advantages will be realized if your ductless system is built properly or of the wrong size.

It’s important employing a ductless air conditioner installer with the proper tools unless you’re a builder or remodeler. The contractor must pour concrete for the outside unit, make a hole in the external wall for the conduit, and do additional work as needed, such as removing part of your present system’s components. These components will set you back between $1300 and $2000.

Remember that ductless heating and cooling systems in the United States are still considered a niche industry, despite the temptation to go with the lowest price. You may have to look about for the appropriate contractor, but don’t settle for someone you’re not convinced will do a decent job simply because they have the greatest labor and installation prices.

Other Things To Consider

  • On the hottest days, a ductless air conditioner may not be able to keep up with the demands of cooling your house. You might wish to keep your old HVAC system around to serve as a backup when needed.
  • Instead of converting to ductless throughout your home, whether you have wall units or radiant heating, you can incorporate only one ductless system to take care of your primary living space or “zone.”
  • You may be eligible for rebates and tax advantages, so look into these before approving or rejecting this project.

Finding A Mini Split AC Installer

  • Keep an eye on your money. To analyze your consumption and size your ductless mini split system correctly and according to your home’s layout, contact a qualified mini split AC contractor near you.
  • Request a written estimate as well as documents of their HVAC license and insurance coverage before choosing an HVAC professional. You should check their credentials before signing on the dotted line since most towns require HVAC contractors to have a valid heating and air conditioning license as well as liability and worker’s compensation insurance.
  • Verify their contractor license with your local building department or attorney general’s office. Check with the relevant insurance providers to see whether they have the necessary insurance coverage.
  • Look up the contractor or firm on the Better Business Bureau website to see if there have been any recent complaints or legal action taken against them.

Ductless HVAC Maintenance

Whether you pick a split or multi-split ductless system, you’ll need to take a few measures to maintain both components working at their best throughout the anticipated 12 to 15-year lifespan of your ductless air conditioner:

Clean and change the filter on a regular basis. This allows the system to maintain the air cleansed and prevents system failures. Plants, long grass, and trash should be kept away from the compressor in order to ensure adequate airflow.

Schedule a yearly checkup with a licensed specialist to ensure that all components are working correctly. A licensed professional will do the following:

  • Replace or clean the filter.
  • Clean the compressor and the condenser coils of any build-up.
  • Make that the fan and valve are working correctly.
  • Inspect the copper tubing for any signs of refrigerant leakage.
  • As needed, make further repairs or replacements.
  • Examine all electrical connections for any loose, frayed, or defective wires.

Do You Need Ductless Mini Split A/C Installation or Replacement?

Get free, zero-commitment quotes from pro contractors near you.

What Is A Ductless Mini Split Air Conditioner?

With a ductless unit (also known as a small split AC unit), heat is pumped into and out of your home while the refrigerant is circulated through copper pipes connected to a fan that distributes the cold air throughout the house. They have the ability to properly cool and heat your house.

Ductless AC installation, on the other hand, may not be the ideal HVAC installation choice if you reside in an extremely cold climate. This is because these air conditioners can only provide heat in temperatures as low as -15 degrees Fahrenheit.

Most units automatically shut off if the temperature falls below 5 degrees Fahrenheit. If you need extra heating capacity during the winter, you may simply couple your ductless mini split system with a new furnace.

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Heather Robbins
Heather Robbins

Heather is a passionate writer who loves anything DIY. Growing up, she learned everything from home repairs to design, and wants to share her tips with you. When she's not writing, she's usually hiking or searching for her next DIY project.

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