Answer:
No, mini splits do not necessarily need to be installed on an exterior wall. From our experience, interior wall installations are entirely feasible with proper planning, making these systems highly versatile for different home layouts.
More On “Does a Mini Split Need to Be on an Exterior Wall?”
While exterior wall installations are common for mini splits due to easier access for line sets and drainage, interior walls are also an excellent option. In cases where an exterior wall isn’t available or practical, the line sets can be routed through the ceiling, attic, or walls to connect the indoor and outdoor units. In our view, this flexibility allows for better customization based on room design and layout.
When installing on an interior wall, additional considerations include ensuring proper drainage for the condensate line and securing a route for the refrigerant pipes to reach the outdoor condenser. Over the years, we’ve found that with the right planning and expertise, these installations are just as efficient and reliable as exterior wall setups.
Ultimately, the choice of wall depends on the room’s design and functionality. A professional installer can evaluate the space and recommend the best placement to ensure optimal performance and aesthetics, whether it’s an exterior or interior wall.
