What is an “ambient” operating range of a system?

Ambient operating range is technical talk for the minimum and maximum temperatures that the unit will adequately function at.

It is in the extreme temperatures that you really want your heating or air conditioner to work. Whilst some inferior brands they are not designed to operate in the extreme temperatures, you should look for ambient operating ranges of:

  • -10 to 46 degrees in cooling
  • -10 to 24 degrees in heating