If you’re considering a new HVAC system for your home, a mini-split system is tough to beat. With the help of inverter technology, these systems are highly efficient and only generate enough heating or cooling to meet your specific temperature needs. However, in order to utilize this efficiency while staying cool in the summer and warm in the winter, you need to select the right size unit for your home.
Why is Choosing the Right Size Ductless Mini-Split Unit So Important?
The wrong size mini-split unit can seriously hinder its performance. A correctly sized unit, on the other hand, will be able to effectively and efficiently heat or cool your entire home. So, how do you know which size to choose? When selecting a ductless mini-split HVAC system, it all comes down to the BTUs. Installing a system with a BTU rating capable of meeting your needs and home’s specifications is a must.
The Number of Zones You Need
In general, ductless air conditioning systems come in two main options: single-zone and multi-zone systems. Single-zone means the unit has one indoor unit and one outdoor unit or a 1:1 ratio. It’s typically used to cool one room or one main area of your home. On the other hand, multi-zone systems have multiple indoor units (say, one in each main room) that connect to a single outdoor unit. Multi-zone systems can cool up to five rooms on a single outdoor condenser/compressor, depending on the unit. There are different scenarios that are better for different zone options.
The Option to Heat with the Same System
The customers are often surprised to find that mini-split systems provide cooling and heating. While they may not be able to replace your primary heating source, such as your boiler or furnace, they can certainly warm up your space when temps are low. If you do want your cooling system to be able to serve as a heater as well, you’ll want to select ductless equipment that accommodates both and works with a mini-split heat pump. At ComfortUp, we have a wide variety of multi-zone systems that are rated to provide heat in temperatures as cold as -13°F and some single-zone systems that can be used in conditions that are as cold as -22°F. Of course, your desire to heat some or all of your home will need to be considered in your configuration design.
The Special Features of Your Ideal Unit
At the end of the day, your ductless air conditioner is simply an appliance made with complex technology, equipped with all sorts of user-friendly features that make it great for your space. Not all ductless air conditioning units are created equal. Some features you may want to prioritize include Wi-Fi connectivity (so you can control the unit from anywhere using your smartphone) and inverter technology to help it operate efficiently. Weighing the proper brands and reading ductless AC reviews will help you make the best decision.
Your Noise Preferences
Another thing you should pay attention to when selecting your unit is the sound it puts out. Ductless systems are like any other home appliance, in that they’re often rated by decibel. If you’re particularly sensitive to sound, you’ll want to prioritize selecting a low-decibel unit. There are ductless systems, with units featuring as low as 19 decibels of sound pressure. To put that into perspective, rustling leaves generally produce a decibel level of about 20. Do note that, if you’re upgrading from hefty window air conditioners, you’ll most likely be switching to a much quieter option no matter what system you choose.
The Aesthetics of the Unit
Finally, don’t forget to take some time to think about how you want your ductless air conditioners to look. While there isn’t a huge variation in terms of the aesthetic from one brand or unit to another, you do have some visual options. Sleek modern-looking units are available to those who prefer a more contemporary look. Note that the aesthetic of your unit may affect your price, and you may the option to install a more basic or utilitarian-looking model for less. Compare the look of different brands if this is something that matters to you.

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