Skip to main content
Precise Air Systems Inc.
Ductless

The LA Homeowner's Guide to Ductless Mini-Splits

February 24, 2026 · 6 min read · By Precise Air Systems

Lennox ductless mini-split indoor and outdoor units

Los Angeles is full of homes that were never built for central air: 1920s bungalows, hillside homes with no attic space, converted garages, and the fast-growing wave of ADUs. Ductless mini-splits were made for exactly these situations.

How they work

A compact outdoor unit connects to one or more indoor air handlers through a small wall penetration — no ductwork required. Each indoor unit conditions its own zone, so you cool the rooms you use instead of the whole house.

Why they fit Southern California

  • Zone control — bedrooms at night, living areas by day.
  • Heat + cool — mini-splits are heat pumps, covering our mild winters efficiently.
  • Quiet — Lennox indoor units run at library-quiet sound levels.
  • Efficiency — no duct losses, inverter compressors, low operating cost.

What installation involves

A typical single-zone installation is completed in a day: mounting the indoor unit, setting the outdoor unit, connecting refrigerant lines, and commissioning. Multi-zone systems take longer, and placement decisions matter — which is where precise measurement pays off.

See our Ductless Mini-Split services or request an estimate.

Back to the Learning Center
From Reading to Fixing

Ready for a precise answer about your home?

Request an estimate from your local Lennox dealer. Transparent pricing, factory-trained technicians, and 1975 roots.