Plenty of Denver-metro homes have a room that never gets comfortable. It might be the upstairs bedroom that bakes in July, the finished basement, a garage turned into a gym, or an addition the old furnace was never sized for. Some older homes have no ductwork at all.
For a lot of those spaces, a ductless mini-split is the cleanest answer. Once you decide to go ductless, the next question is usually where the indoor unit goes: on the wall or in the ceiling.
How a ductless mini-split works
A mini-split has two main parts. The outdoor unit sits outside, like a regular AC condenser. The indoor unit mounts inside the room you want to heat or cool. A small bundle of refrigerant lines and wiring runs between them through a small opening in the wall, so there’s no ductwork to build.
Each indoor unit controls its own space, or zone. You can put one in a single room, or several around the house, each with its own setting. Many mini-splits sold today are heat pumps, so they can heat as well as cool. Ask which models are right for your home and our Colorado winters.
Wall-mounted units
The wall unit is the one most people picture: a long, slim unit high on the wall. It’s the most common style and usually the simplest to install. The lines run straight through the wall behind it to the outdoor unit.
Wall units are a good fit for bedrooms, offices, additions, and most single rooms. They’re easy to reach for cleaning the filters, which you’ll want to do regularly.
Ceiling units
A ceiling unit, often called a ceiling cassette, sits flush in the ceiling, with only a square grille showing. It spreads air in several directions from above.
Here’s what surprises people: a ceiling unit doesn’t work any better than a wall unit. The function is the same. The difference is how it looks. Some homeowners just prefer the clean look of a unit in the ceiling, with nothing on the walls.
The function is the same. The difference is how it looks.
A ceiling unit does take more work to install, because it needs space above the ceiling for the unit and the lines. That extra work means it usually costs a bit more. Ceiling units are widely used in Mexico, for example. Here, it often comes down to style and to what’s above the ceiling.
How to choose
A few questions help narrow it down:
- What’s above the ceiling? A ceiling cassette needs room in the attic or between floors. A basement with a finished ceiling or a room with an attic above may work well. A room under a flat roof may not.
- How much wall space do you have? Rooms with lots of windows, built-ins, or artwork can make a wall unit hard to place.
- How much does the look matter to you? If a unit on the wall bothers you, the ceiling option is worth the extra cost.
- How many rooms? One room is simple. Several rooms may mean a mix of wall and ceiling units, or a different system altogether.
- What’s your budget? If the lowest cost matters most, a wall unit usually wins.
Keeping either style running well
Wall or ceiling, a mini-split needs the same basic care. Clean the washable filters in the indoor unit as often as the manufacturer recommends, and more often if you have pets or dust. Outside, keep the unit clear of leaves, weeds, and drifting snow so it can move air freely all year. And like any system, a mini-split benefits from a regular tune-up, including cleaning the indoor and outdoor coils, which keeps it efficient and helps catch small problems early.
Why we look before we quote
The right choice depends on your home, which is why we don’t quote a mini-split over the phone. We come out, look at the rooms, what’s above the ceiling, where the outdoor unit can go, and how the lines will run. Then we give you more than one option, with the price for each, so you can compare wall and ceiling side by side.
Whichever you choose, the install matters as much as the equipment. The refrigerant lines need to be vacuumed and leak-tested before the system runs, so the unit you paid for performs the way it should.
Thinking About a Mini-Split?
K&G Builders HVAC installs wall and ceiling ductless systems across the Denver metro. Call (720) 701-3810 or request a quote.
