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Where mini-splits make sense
- Garages and workshops
- Casitas and guest suites
- Room additions and converted patios
- Upstairs rooms that stay hot even when the main system is running
- Homes with no existing ductwork
How they work
An outdoor unit connects to one or more indoor heads through a small refrigerant line set, so only a small hole through the wall is needed. Each head has its own controls, so you only cool or heat the spaces you're using. Most mini-splits are heat pumps, so they heat as well as cool.
Installation
- Sizing each zone for its size, sun exposure and use
- Placing heads for good airflow and a clean look
- Mounting the outdoor unit, running the line set and condensate drain
- Electrical connection, startup and a walk-through of the controls
Repair and maintenance
Mini-split problems we fix include heads that blink error codes, units that won't cool or heat, water dripping from the indoor head (often a clogged drain), and dirty coils and blower wheels. The washable filters in each head should be cleaned regularly, especially in dusty Las Vegas homes.
Mini-split questions from Las Vegas homeowners
Sizing for west-facing rooms and sun exposure
A room with large west-facing windows gains far more heat on a summer afternoon than one on the north side. Square footage alone can undersize the head. We look at windows, insulation, ceiling height and how the space is used. A casita or garage gym that's used mostly in the evening has different needs than a home office used all day.
Single-zone versus multi-zone outdoor units
One outdoor unit can feed a single head or several heads in different rooms. Multi-zone systems save wall space outside but mean every zone depends on one compressor. Several single-zone systems cost more but keep spaces independent. We'll lay out both options when you're adding comfort to more than one room.
Line set covers and wall placement
Refrigerant lines and the condensate drain have to run from the indoor head to the outdoor unit. A paintable line set cover keeps the run tidy on stucco walls and protects insulation from sun damage. Placing the head on an exterior wall usually keeps the run short and the drain simple.
Mini-split or extending existing ducts
For a room addition, extending the main system's ductwork is sometimes possible, but only if the existing equipment has capacity to spare. Many Las Vegas systems are already working hard in July. A mini-split adds its own capacity instead. Our duct installation page covers when a new duct run makes more sense.
Common questions
Can a mini-split cool a Las Vegas garage?
Yes, if it's sized for the space and the garage has some insulation. Uninsulated garages with metal doors take a lot more capacity.
Do mini-splits heat too?
Most do. They're heat pumps, so they heat in winter and cool in summer.
How often should I clean mini-split filters?
Check them every month or two and rinse them when dusty. In Las Vegas, that may be more often.