See the photos of this heating system installed in Williams Arizona. It was 15 degrees outside, and these Mitsubishi ductless systems worked great! The existing installed units are heat pumps, meaning that they provide heat and AC. The difference with these units compared to the package/conventional systems are they work great down to zero degrees. They still put out awesome heat, and are still efficient. Conventional systems only really work down to 38 degrees, then they don’t work well.
It took about 20 minutes for the main room to go from 50 degrees to 80 degrees with this new installation.