High-Velocity Air Conditioning Vs. Mini Split

Sometimes, over a hundred and fifty years old homes do not have the setup for central air conditioning, thus requiring ductwork insulation. But if you prefer not to install the ductwork, you can install a mini-split or high-velocity air conditioning unit instead. But what's the difference between the two? And what are their similarities? We've researched both types of units, and in this post, we will compare and contrast them.

High-velocity a/c units provide air conditioning to buildings with no ductwork. Instead of forcing cooled air through ductwork, they use flexible easy-to-install tubes placed in the walls and ceilings of homes. Mini-split air conditioning systems are operated by an outdoor compressor and indoor units that supply air directly in each room of a home. These wall-mounted systems don't require ductwork and are reasonably easy to install and operate.

While neither system is necessarily worse or better than the other, they have distinctive differences worth noting before installation. And having an initial idea of what your installation budget is will help narrow down your decision. Continue reading to learn about which unit may be best given certain factors.

Ducting layouts inside an unfinished office, High-Velocity Air Conditioning Vs. Mini Split

Comparing High-Velocity Air Conditioning and Mini-Split Systems

A high velocity air conditioning unit

Ductless Mini-Split Air Conditioners

Ductless or "mini-split" systems don't require ductwork, as the outside unit of their system is connected through a small hole in the home's exterior, allowing the interior unit to provide air conditioning to the home or apartment. The outdoor unit draws all of the warm air from outside, cools it, and then delivers it directly to the room.


They are efficient

Mini-split systems have sophisticated technology, which makes them very efficient. They can quickly and easily convert high-voltage electricity, allowing them to run on very little energy. Their compressors can also run at varying speeds. If you find a mini-split system with a SEER rating over 25, you can be sure that this will help you save on your electricity bill.

Varied Zoning

Mini-split systems allow you to establish zones in your home to make rooms more comfortable according to occupancy. For example, if you have an empty bedroom in your home, you can set it to a different temperature than a constantly occupied bedroom. You can have multiple indoor units in your home running at different temperature settings at once, making this one of the most advantageous benefits of mini splits.

They are very quiet

These systems don't make much noise when operating, which is one of their best features. Ductless systems, unlike window systems or central air, operate much more quietly than high-velocity systems. If you're someone who prefers an a/c system that doesn't sound like freight trucks driving around inf your home, a mini-split unit is worth considering.

No duct installation

As mentioned previously, mini-split systems don't require ductwork. This means saving hundreds of dollars on contractors for the units' installation. The only installation needed is for the interior units, which can be done fairly quickly and easily, and the outside unit, which doesn't require as much labor as other HVAC systems.

Read more details about this mini split air conditioning unit on Amazon.


Filtration capability

While mini-split systems do have air filters, they aren't the most powerful filtration systems available. To increase filtration, users often add carbon inserts into the mini-split unit to help mitigate this issue. The filtration capability also depends on the brand and model of the ductless system.


Mini-split systems will typically cost more money than high-velocity systems. However, you will save money on the back end regarding your electricity bill due to their low energy usage.

Multiple units needed

Having multiple mini-splits in your home can be distracting from an aesthetic standpoint. Keep in mind that you'll typically need a unit for each room to cool it efficiently. This also adds to the initial cost of mini-split systems, especially if you have a home with three or more rooms.

High-Velocity Air Conditioners

High-velocity systems make for a great heating and cooling option. Not only can they remove up to 30% of humidity from your home, but they can also create an even air temperature throughout the various rooms of your home. Let's take a look at more of their benefits.


They aren't as distracting.

These units are typically placed in the basement, with the vents placed in inconspicuous areas of your home--unlike mini-split units. Keep in mind that the vents are pretty small, so they are less noticeable on the wall or inside closets.

Only one unit is needed

With high-velocity air conditioners, you only need one unit for the entire home instead of one unit in each room. These air conditioning units can force cold air into multiple rooms and spaces within your home without the extra equipment. This means lower installation costs.

They cool relatively fast

High-velocity units are also known for their ability to quickly force air into several rooms at a fairly high rate of speed. Meaning you don't have to wait for hours for your entire home to cool down, which is pretty similar to that of central air units.


Units can be noisy

On the downside, high-velocity units can be quite noisy as they push air through the small vents around your home. However, some brands are developing models that have sound dampening technologies to reduce their noise levels.

Physical discomfort

High-velocity systems force air through their vents at a fairly high rate of speed. Sitting close to a vent can make you physically uncomfortable, especially if the room is on the smaller side. Contractors will typically recommend placing the vents far away from the seating or sleeping areas within a room to address this issue.

How Much Does A High-Velocity Air Conditioning Unit Cost?

On average, a brand-new high-velocity air conditioning system can cause anywhere from $3,000 to $7,000. Keep in mind that this depends on your location, the structural setup of your home, and your personal preferences.

How Much Does A Mini Split Air Conditioning Unit Cost?

A typical ductless system can cost anywhere from $2,000 to over $10,000 to install. The average install price is around $3,000, however. The total cost will depend on the number of rooms in your home, as contractors will typically recommend installing one interior unit per room. Additional costs can be incurred if you have any special zoning requirements.

Can A Mini Split Cool A Whole House?

Possibly, but it'd have to be a tiny home, such as one that's 400-500 square feet. There are also certain factors to consider before answering this question. It mainly depends on a couple of things. The size of the air handlers and the size of the rooms in the home. Other considerations include the number of windows in the home and the flooring type.

Contractors will usually recommend one air handler per room and possibly an additional air handler if the room is over 500 square feet. Keep in mind that you can use up to eight different air handlers while having them all connected to one outdoor unit. If you are unsure how many handlers you'll need for your home, it's best to consult a contractor so that they can come out, performing an inspection, and give you an accurate estimation of the number of handlers you'll need and their ideal sizes.

Who Makes The Best Mini Split System?

A condenser suspended outside a building

The best way to answer this question is to go by the SEER rating of the mini-split system. The SEER rating measures the ratio of cooling output compared to the amount of energy that the unit uses per hour. It's a great way to determine how efficient the unit is. That being stated, the top contenders would be the Fujitsu General RLS3Y models, which have a SEER rating of up to 33, and the Mitsubishi MUZ-FH models, which have a SEER rating of 25. Both unit models provide over 1200 BTUs of power and have great warranties.

Wrapping Things Up

It's a good idea to weigh all of your options before deciding whether to go with a high-velocity air conditioner or a mini-split system. Important things to consider include current insulation, your home's square footage, overall layout, and the number of people that occupy your home. It's also important to know what your budget is and which system will work best for the structure of your home. A licensed HVAC professional can help you narrow down your choices and plan out the installation process.

Before you go, be sure to check out our other posts:

How Long Does It Take For A Central AC To Defrost?

AC Unit Freezing Up In The Summer – What Could Be Wrong?

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