Where Should a Mini Split Indoor Unit Be Installed
Mini-split units are a popular choice in Sacramento homes because of their flexibility. They don’t require ductwork, which makes them ideal for preexisting homes.
For these energy-efficient units to work properly, they need to be placed in the right location. When Fox Family Heating & Air comes out to install your mini-split unit, we’ll carefully review your airflow, room layout, drainage needs, heat sources, sunlight, ceiling height, and maintenance access to determine the best placement.
Why Mini-Split Indoor Unit Placement Matters
When the unit is poorly placed, it can result in uneven temperatures, weak airflow, short cycling, and higher energy bills. Basically, a poor location means your unit has to work harder to achieve the same temperature.
By selecting the right location, we can also ensure the temperature sensor reads the room temperature accurately. For example, a drafty location or a patch of sunlight can cause a reading that is different from the rest of the room. As an added benefit, choosing the right spot makes future filter cleaning and service easier.
The Best Place To Install a Mini-Split Indoor Unit
For your comfort and convenience, we use the following guidelines to install mini-split units.
- High on the Wall: The unit should be placed about 6 to 8 feet off the floor on a vertical wall.
- Central Location: For proper airflow and even temperatures, we try to install the unit in a central part of the room whenever possible.
- Airflow Optimization: No matter where the unit is installed, our goal is to place it in a location where air can move freely across the space.
- Exterior Walls: As long as it is practical, we will install the unit on an exterior or perimeter wall. This makes it easier to set up electrical connections, line set, and condensate drainage.
- High-Use Rooms: The best location is in a space where you and your family spend most of your time. For example, bedrooms, living rooms, offices, additions, and converted spaces are popular locations.
Keep the Unit Away From Obstructions
For the best airflow and comfort, it’s important to keep the unit away from anything that could obstruct or block it.
Avoid Furniture, Curtains, and Shelving
The unit should never be installed behind tall furniture, curtains, shelving, or wall decor. If the airflow is blocked, it can create hot and cold spots in the room. Instead, there should be proper clearance around the top, sides, and front of the unit.
Avoid Tight Corners
Corners can limit the distribution of air. Because of this, we generally recommend placing the unit in a central location on the wall and not in a tucked-away spot.
Avoid Heat Sources and Direct Sunlight
You should never install the unit above heat sources. Ovens, televisions, computers, and strong lighting can cause the temperature sensor to have an inaccurate reading, leading to inefficient indoor temperatures. The unit should not be in a location that receives direct sunlight for extended periods of time.
Do Not Aim Airflow Directly at People
Similarly, the mini-split unit should be set up so that it doesn’t blow air directly onto a bed, sofa, desk, dining table, or crib. For bedrooms, this means the airflow should be aimed at a walkway instead of the bed. Meanwhile, airflow in the living room should not be focused on seating areas. Finally, avoid aiming the airflow at the table in your kitchen or dining room.
Should a Mini-Split Go in a Hallway?
Hallways are not ideal for mini-split placement because the conditioned air may not reach adjacent rooms evenly. Additionally, the unit will read the hallway temperature instead of the room where your family is actually located. Instead of a hallway placement, we recommend putting units in the rooms where people spend the most time.
What About Large Rooms or Open Floor Plans?
If you have a large room or open floor plan, the unit’s location should be chosen so that it serves the whole area. You’ll need to consider the shape of the room, furniture layout, ceiling height, and sunlight exposure. Often, we find that multi-zone systems work best when you are trying to condition large spaces, multiple rooms, or areas with vaulted ceilings.
Plan for Drainage, Lines, and Maintenance
When the indoor unit is cooling, it will produce condensation. Condensate drainage lines are needed to transfer this moisture out of your home. Because of this, exterior wall installations tend to be much simpler. If you install the unit on an interior wall, you may need a condensate pump or a longer line to remove condensate.
Your ductless mini-splits should receive a fall and spring tune-up. In between, you’ll need to change the filter and perform routine maintenance tasks. Because of this, the unit should be located where it is easy to reach.
Quick Placement Checklist
As you decide on the placement of your future mini-split units, keep the following checklist in mind.
- 6 to 8 feet high on a vertical wall
- Clear airflow across the entire room
- Away from direct sunlight
- Not blocked by furniture, shelves, or curtains
- Away from any heat-producing appliances or electronics
- Not blowing directly onto beds or seating areas
- Accessible for future maintenance
- Practical access available for the outdoor unit and drain
Why Professional Installation Matters
Our technicians will confirm the sizing, clearances, line routing, wall strength, drainage, and electrical needs necessary for your new unit. We will analyze the space to determine the best placement for your comfort, energy efficiency, and equipment life. By choosing the right placement, we can help you avoid future service issues.
FAQs
How high should a mini-split indoor unit be installed?
We generally recommend placing it 6 to 8 feet off the floor. The unit should have proper clearance from the ceiling.
Can a mini-split be installed on an interior wall?
They can, but they will generally need a condensate pump, more complex drainage, or longer refrigerant lines. As a result, an exterior wall is generally easier.
Should a mini-split be installed above a bed?
In general, this is not a good location. The unit should be placed so that it doesn’t produce direct airflow over a sleeping area.
Can one mini-split cool multiple rooms?
In open layouts, a mini-split may be able to cool multiple rooms. However, separate rooms normally require separate indoor units to achieve a consistent level of comfort.
Where should you not install a mini-split?
You should never install the unit near heat sources or direct sunlight. In addition, it should not be placed in tight corners, blocked walls, hallways, or any area where the air will blow directly onto people.
Schedule Your Mini-Split Installation
The indoor placement of your mini-split units should deliver a balance of comfort, airflow, service access, and installation convenience. In most cases, this means that a high, central, and unobstructed wall will be the best location. Unsure about where to place your ductless mini-split? Schedule a professional assessment to discover the best location for your unit.