Are portable AC units viable in homes? I tested one that's 41% off right now

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The EcoFlow Wave 3, the company's latest portable air conditioner and heater, is typically priced at $1,300 without the add-on battery and $2,299 with the battery. However, a Prime Day deal dropped the price of the Wave 3 to $799 for the standalone unit and $1,359 for the unit with the add-on battery.

Also: The best October Prime Day deals live now

This smart, portable AC is actually a 3-in-1 system: it functions as an air conditioner, heater, and dehumidifier. It can run while plugged in or on battery power, though you can also charge it with solar panels. This makes it a useful companion for RV users or campers, but it can also be helpful in a pinch during power outages or heatwaves.

In my case, I put it through the ringer ...