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Advantages and Disadvantages of Mini Split AC | Are They Worth It?

If you’re tired of utility bills increasing every month or dealing with drafty rooms and experiencing inconsistent temperatures in your home. Then, it’s time to think about a ductless mini-split system. Making such decisions involves weighing the pros and cons to make an informed decision to avoid regret later. I hope you’ll be able to conclude it after this post.

From my experience as a contractor, I’ve seen firsthand the advantages and disadvantages these systems offer. These systems have been installed in various spaces, from businesses to homes. A sleek panel on the wall circulates air quietly. That’s how it beats the traditional heating and cooling units, which sometimes struggle to distribute air evenly.

What is Mini Split AC?

In simple words, a Mini Split AC is a Ductless system that acts as a portable HVAC solution for residential and commercial facilities without any ductwork.

Why consider the mini split AC?

Well, here’s a story from one of our clients, George:

When I first moved into my multi-family home in 2017, which has several small apartments, one of my key concerns was finding a heating and cooling solution. I wanted to adopt a system that takes less space and doesn’t have to spend much on installing extensive ductwork. That’s when I discovered the mini split AC, a versatile system that fits every room, depending on its size.

Mini split AC systems are essentially ductless heating and cooling systems designed to control the temperature in individual rooms or spaces. They are perfect for homes, basements, attics, and even garages not served by traditional ducted systems. They offer significant comfort and are incredibly economical, especially in structures where extending or installing ductwork is impractical or too costly.

2 Types of Split AC

2 Rooms with different temperatures on each

There are generally two mini-split systems, each catering to different needs and preferences. The first is the single-zone system, ideal for heating or cooling one room or area. The second type is the multi-zone system, which can handle up to eight indoor units per outdoor unit. It allows different temperature settings for each room at once.

Components of Mini Split AC & It’s Working

The mini split AC consists of two major components: the outdoor unit and the indoor unit. The outdoor unit houses the compressor and the condenser, which expels the heat outside. The indoor unit includes a specific type of evaporator coil and a blower that distributes the cool air evenly. These units are interconnected by a conduit that houses the refrigerant line, power cable, and condensate drain.

Similarly, refrigerant absorbs heat from the indoor air and releases it outside. You can experience the hot air flowing in front of the outdoor unit. This cycle is supported by inverter technology in advanced models. It mainly adjusts the compressor’s speed and offers reduced noise levels.

5 Advantages of Mini Split AC

Let’s explore some of the pros that a ductless split AC can offer you:

1. Plug-and-Play Setup

First of all, if you’re considering upgrading and want to save money on ductwork, a mini-split system might be the perfect solution. Its easy installation reduces the unnecessary hassle of duct installation and cleaning.

Thus, only a tiny hole in the wall is required to allow the conduit that connects the indoor and outdoor units to pass through. That’s why most homeowners are moving towards it, mostly those with non-traditional architecture or without existing ductwork.

2. Green Efficiency

Do you know that Air Conditioners release 118 million metric tons of CO2 annually?

Yes, this number can shock you. 

That’s why ACs have a large number of environmental concerns, as old ACs use the R22 (referred to as an ozone-depleting gas). Therefore, these split ACs utilize R420 (a less harmful gas for the environment), which can minimize your carbon footprint. You’ll also get a reduction in energy waste and lower utility bills.

3. Purified Airflow

If you think you’ll get cool air with these systems, that’s right. But they also improve air quality in your home. With no ducts to gather dust, allergens, or debris, these systems reduce the risk of respiratory issues.

Likewise, the multi-stage filtration system traps and removes harmful particles, such as mold, bacteria, and dust.

4. Whisper-Quiet Mechanism

HVAC systems make too much noise, and this is common in most houses. Even if there’s no issue with them, you may have to bear their weird noises.

For those of us craving peace in living spaces, the quiet operation of split AC is a godsend. The indoor unit is designed to operate at a noise level as low as 19 decibels—about as loud as rustling leaves.

You’ll enjoy peace at home without any humming, banging, or whirring noises of HVAC systems. External noise and vibration are hardly noticeable when the compressor is outside.

Is it a win-win?

It is!

5. Zone-Specific Control

The built-in zoning capability feature allows you to independently control the temperature of different rooms with the help of Smart Apps or Wi-Fi.

For example, if your kid’s room requires 22°C. At the same time, Grandma wants to enjoy the 26°C she can control. That’s how it reduces wear and tear on the system.

Cons of Mini Split AC

Well, the list of its pros goes further. Yet, it has many cons, too. Below are some of those:

1. Premium Cost Barrier

One of the first factors you’ll encounter is the upfront costs. These systems are notorious for their higher initial cost than forced air conditioners. You have to pay for the labor involved in the installation or may need a licensed technician. Though these units can save money long-term, the initial investment can be a significant concern.

2. Aesthetic Intrusion

Aesthetics are another important consideration. Unlike HVAC systems, where components are often hidden, mini splits require indoor units to be mounted on walls or ceilings. If you want your room to look minimalistic, this can create visual clutter.

Even though they are designed to be compact and attractive, the presence of these units in each room may not align with every home’s decor.

3. Space-Intensive Framework

Installing a mini-split system involves handling technical challenges and physical space requirements. Indoor units require only wall or ceiling space, while outdoor units require a stable surface with adequate clearance from other structures.

For homes without rooftops or with sloped roofs, placing outdoor units can be tricky. Additionally, if you’re in a moderate climate, you might not have the backup space necessary for supplemental heating.

4. Routine Upkeep

Just like HVAC systems, split AC also needs maintenance. This includes cleaning or replacing air filters and checking refrigerant levels. You can clean the filters but need to call Ventiluxes for a whole service. It should be done after 3-4 months.

5. Climate Sensitive Performance

If you live in an area with extreme weather conditions, you may find the cooling capacity or heating performance. At the same time, it leads to energy waste and reduced comfort.

Lastly, it’s a quiet operation, which is a benefit but can also be a con. But why?

It makes it harder to notice when the system runs with minor issues. Unless you feel significant changes in the temperature, you take it as usual.

Should You Invest in a Mini Split AC?

As a homeowner, I’ll choose Split AC if I have to decide whether to install ductless AC or go for traditional HVAC systems.

Since it offers excellent perks and value for money, the hassle is lower than that of giant steps. I can save time and resources by bearing its one-time cost.

At the same time, a mini split AC is not best for most commercial uses. Your situation may be different. That’s why you should consider your needs and then make the decision.

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