this post was submitted on 05 Aug 2026
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Well obviously it would take more a.c.'s to cool a house but again it depends on needs. If the house was a single floor unit it wouldn't need a mini split. It could use a window a.c. which can be 120v; mini splits are 220v-240v. It's probably a little more on volts but that's if both are ran at the same time. If you're in a main room while the main bed room AC is off you're not consuming twice as much power.
But the more cassettes with mini splits the more power you draw, the more you have them on the more energy you're consuming regardless.
So if you have two cassettes running 4 units, you're running 2 zones per cassette at 220v-240v each cassette plus the refrigerant, plus the amount of time on which can get to over 1,000w each easily. How they make it cost effective, idk. Maybe city programs but they cost 4 times as much as my window ac, the unit not the amount of money to run them.
I'm only going to use my AC 4 months out of the year, if that. It doesn't seem worth drilling into my house for 4 months out of the year.