Multi-Zone Systems



There is no need to heat and cool every room in your home all year long, when you only occupy a few rooms at a time. Instead, achieve total comfort on demand while saving money and reducing your energy bills with a zoned solution from Formula Fabrication.
A zoned home is divided into segments based on each area’s need for conditioning. Rather than relying on a single unit to cool or heat the entire property, multi-zoned homes utilize a network of small, energy efficient units and thermostats to send the right amount of conditioned air to each zone. This allows homeowners to have room-by-room control.



Slim, wall-mounted indoor units

Precise, Discreet Temperature Control
Slim, wall-mounted units provide individual room, comfort control

Multi-Stage Air Filtration
All indoor models use a sophisticated multi-stage filtration system to reduce contaminants such as allergens, viruses, and bacteria from the air.

Ceiling-Recessed, Cassette-Style indoor units

Discreet Comfort
Wider airflow pattern for better air distribution in a less obtrusive style.
Keeps your walls free
For areas where there is limited walls space, a ceiling recessed unit lets you make the most out of your available space.

Floor-mounted indoor units

Small space? No problem.
Ideal for areas that are smaller or don’t have as much wall space.


NO MORE HOT & COLD SPOTS with H2i Technology!

The H2i hyper-heat models feature special technology for delivering exceptional heating performance in extreme climates.

  • One of the only heat pumps in the world proven to heat at -18°F ambient, producing up to 100% heating capacity at 5°F
  • Hot start technology provides warmth from the start, reducing drafts
  • 30.5 – 22.0 SEER, 13.5 – 12.0 HSPF, INVERTER-driven compressor
  • Quiet operation as low as 20 dB(A)

In other words: HEAT, AND LOTS OF IT!

Our Customers Say

“Our house is no longer an oven at the end of the day and it’s easier to sleep at night!”

Nick & Laura, Trout Creek, MT

“Anyone thinking fire wood is cheaper has never used a Mitsubishi Ductless Heat Pump.”

Wade, Libby, MT

“It’s incredibly simple to use & our home stays at an even temperature. Our wood stove will never compete.”

Wayne & Teresa, Troy, MT

Formula Fabrication
31936 US Highway 2, Libby, Montana
Office Hours:
Monday - Friday, 8:00am to 5:00pm