No clue as to good contractors.
Find out the average electrical power consumption a.k.a. average electrical power input for each of those models and then post them here. You have to do your homework on this. Only then can we really compare inverter vs. non-inverter.
Note that average power input is not the same as cooling capacity a.k.a. cooling power a.k.a. power output. Also, EER is supposed to somehow reflect 'efficiency' but its formula is so complicated that it is not clear to me whether it is possible and how to estimate energy usage using EER. I prefer the simple and direct way, namely (average power consumption in kilowatts) x (hours).
If not on the spec sheet or website, you have to specifically ask for it from a technically competent representative of a dealership or of the manufacturer. They SHOULD be able to provide this data because otherwise there is no way to make energy usage and cost estimates prior to purchase.









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