Install a Mitsubishi ductless single-zone system and instantly improve your utility bills!

With just three major components – the indoor unit, the outdoor unit, and the controller, these energy efficient systems are installed quickly and easily.


  • Hyper-Heat models – Guaranteed heat at -18° (heating & cooling)
  • Slim, wall-mounted air conditioners (AC only)
  • Slim, wall-mounted heat pumps (heating & cooling)

These units are ideal for living rooms, dining rooms, basements, kitchens, sunrooms, bedrooms, offices and more!

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

In other words: HEAT, AND LOTS OF IT!

Click here to read more about H2i Hyper-Heat models…
    The MSZ-FS family of Hyper-Heating INVERTER residential systems offer year-round, high-efficiency cooling and heating for a variety of rooms, including bedrooms, basements, sunrooms, and more. The slim, wall-mounted indoor units provide zone comfort control while the INVERTER-driven compressor and electric LEVs in the outdoor unit provide closer control and higher efficiency with minimal power usage.
  • 30.5 – 22.0 SEER, 13.5 – 12.0 HSPF, INVERTER-driven compressor
  • Quiet operation as low as 20 dB(A)
  • Triple action filtration:
    • Nano-platinum filter
    • Electrostatic anti-allergen enzyme filter
    • Deodorizing filter
  • Double-vane air delivery for enhanced circulation
    • Option to set each vane separately
    • Indirect or direct airflow setting options
    • Natural flow setting that creates air movement like a natural breeze
  • 3D i-see Sensor™
    • Infrared human sensing technologies to measure location of human heat signatures
    • Senses floor temperature in order to deliver conditioned air to the areas that need it, using double-vane airflow and motorized vertical vanes
  • NEW multi-function wireless controller

Our Customers Say

“This system is a God send, power outages happen frequently. Our ductless heat pump turns right back on.”

Duane & Helen, Troy, MT

“Warmest the old house has ever been.”

Shawna, Troy, MT

This thing ROCKS! Even when it was super cold it took care of everything. I’d give it 10 stars!


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