Zoned for Everything: Fujitsu Mini Splits & Bosch Heat Pump in a Palm Springs Mid-Century Remodel

There is something special about working on a project where the owner is essentially starting from scratch. We are currently midway through the first week of rough-in for a major remodel in Palm Springs, and seeing the house take shape with those vaulted ceilings is incredible. The customer has stripped much of the original structure to make way for a clean, mid-century modern design, and they had one non-negotiable priority: energy efficiency via individual zoning.

The Setup: Precision Comfort

When you are remodeling a home with this much architectural character, the HVAC system shouldn't just be an afterthought—it needs to be part of the design. For this project, we've split the strategy into two distinct systems to handle the different thermal loads and occupant needs.

For the sleeping quarters—which includes a master bedroom, two guest suites with their own bathrooms, and a dedicated ADU—we are installing Fujitsu Airstage multi mini splits. We are using concealed ceiling cassettes so that you won't see bulky units hanging from those beautiful new ceilings. Each of these four zones is individually controlled, meaning you can keep the master cool without wasting energy on an empty guest suite.

Left: A close-up look at the Fujitsu cassette mounting. Right: The wider angle showing the integration between the ceiling joists and the Eclipse radiant barrier insulation.

The Great Room: The Signature Series

While the bedrooms focus on individual control, the heart of the home—the great room and kitchen—demands a more robust solution. For this central area, we are installing our "signature series": the Bosch IDS Premium Connected Heat Pump system. This is a ducted system designed to provide consistent, high-efficiency airflow throughout the open living spaces.

Week 1: The Heavy Lifting

The first week of rough-in has been all about the infrastructure. We've already hung most of the ceiling cassettes and completed the primary ductwork installation for the central Bosch system. One of the most critical parts of this phase was managing the refrigerant lines.

To ensure the longevity of the system, we trenched all refrigerant lines inside corrugated protective drainage tubing. This allows them to run safely underground to the off-site condenser location without risk of damage from future landscaping or ground shifts.

As the project moves into the next phase, we'll be finishing up the rest of the rough-in before the drywall crews move in. We're looking forward to seeing how these systems integrate once the ceilings are closed up and the final trim is installed.