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Community and Q&A

Mini-split owners: home warm during “polar vortex”?

vap0rtranz | Posted in Green Products and Materials on

How have mini-split owners fared in this latest “polar vortex”?

We’ve been considering swapping our forced air gas furnace for a mini-split ductless system for over a year but this is another winter that makes me 2nd guess.  Our low here (in northeast Wisconsin) for last month was -20F, which is getting uncomfortably close to what Mitsubishi/Daikin/Fujitsu say their units can still work with (though with diminishing square footage / efficiency).

I realize very low temps in many regions aren’t the norm (and was reading a journalist who dug up our local weather history to find that what we now call “polar vortex” has usually happened only once a decade) so are mini-split owners using backup heat sources?  wood stove?

Curious to hear what folks have experienced or heard out there.


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  1. GBA Editor
    Martin Holladay | | #1

    The topic has already been discussed on an existing Q&A thread. Here is the link.

  2. vap0rtranz | | #2

    Ah, I'd look for someone already asking but obviously didn't see this. Thx Martin!

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