The size of a mini split in your home depends on how many rooms you’re treating, the house’s size, and what types of air handlers you choose. Generally, however, the equipment is out of the way and operates virtually silently.
We here at Snowflake Air are big proponents of mini splits, or ductless heating and cooling. As we educate homeowners in Eagle, ID and other towns about them, we notice that people understand the benefits quickly: Lower energy bills, better comfort, more control, and silent heating and cooling.
But, the big stumbling blocks are understanding how it will look in their home and just how large the whole thing is.
(Price is also a factor, of course, and we cover that here).
For this article, we’re tackling the nuts and bolts — or, more specifically, the feet and inches. We’ll walk you through the different components’ sizes and how they’ll fit in your home.
But, there’s no easy answer. Since these systems are so customizable, it’s not like we can give you the dimensions of a furnace or AC condenser and call it a day.
Parts And Sizes Of A Ductless Mini Split
There are three main components to a mini split: the heat pump, air handlers, and line sets that connect the two.
This outdoor component is kind of like the condenser for a central air system in that it’s outside your house. But, while most condensers are a few feet tall and bulky, these are much sleeker:
How Big Is A Heat Pump?
Heat pumps are square or rectangular. Most are around two inches wide, a foot tall, and almost three feet deep. There’s a variation to this size, however, and we’ll cover that later.
Unlike AC condensers, these have a side discharge instead of a fan that blows straight up. So, you can put one under a deck, for instance, or tucked away somewhere else.
We install an air handler in every room you want to treat. Each one circulates the warmth or cooling inside. There are three basic model options to choose from, and you can mix and match them throughout the house.
What is the Size of A Ductless Air Handler?
First is the high-wall mount. It’s the most popular model, and we install it on the wall close to the ceiling. The average size is a foot wide, nine inches tall, and 32 inches deep.
Next are floor or low-wall units. These resemble the radiators you often see in motels: Tall, skinny, and mounted to the wall, touching the floor. On average, these are two feet tall, about 9 inches deep, and 29 inches across.
Finally, there are recessed ceiling cassettes. In these cases, the unit installs flush with the ceiling. They don’t stick out, and all you see is a small vent. The vent size varies greatly from model to model, from less than a square foot to almost 24 inches across.
The line set bundles the power supply, condensate line for humidity runoff, and lines that cycles the refrigerant through the system. It connects the indoor and outdoor components, and in most cases, you don’t see it at all.
For starters, we connect these to the back of the air handler. And, whenever we can, we run it directly through the walls, so they’re completely invisible.
When it’s better to run them along the outside of the wall, we encase them in a plastic line hide that you can paint to blend in with the rest of the room.
Single Room Vs. Whole-Home Setups
Now that you know how big everything is, you can estimate the amount of space you’ll use up inside. It depends significantly on whether you’re looking to just treat a single room, like a third floor or bedroom that’s never quite right, or covering your entire house with ductless heating and cooling.
Generally, we put an air handler in each room you want to heat or cooling. So, addressing a single problem room requires a 1:1 setup: one indoor air handler and one heat pump.
After that, we add more air handlers around the house. Open floor plans downstairs often only need one handler — they’re that powerful. In other situations, we have to add more or use different models to accommodate your layout.
Heating And Cooling Vs. Air Conditioning Only
Earlier, we said there was a factor that could change the size of your heat pump. That’s whether you want air conditioning only or plan to use your ductless system all winter long.
Every heat pump provides cooling. But, the average models only provide heating until you hit the freezing point outside. That makes them great for the fall or early spring, but not the winter.
For the coldest times of the year, you need a Hyper Heat model that provides heat even when it’s as cold as negative 13 degrees Fahrenheit outside. The system still works the same way but is about twice as tall — around two feet high.
Ductless Heating And Cooling In Eagle, ID
Are you ready to overhaul and enhance the heating and cooling in your home? Or, do you just need to fix that one room that’s always too hot or too cold? No matter what you’re looking to do, ductless heating and cooling provides better comfort with lower bills than conventional HVAC.