On Portable AC units:
If you're adding supplemental cooling this summer, here are a couple things to keep in mind.
1. You absolutely want a Dual Hose design (hose in hose is ok). It's way more efficient. Single hose uses room air as the intake, creating negative pressure.
2. The Energy Guide "Annual cost" dollar value on the box is for 8 hours a day for 3 months and is based on 13 cents per kWh. The rate in my area is almost 15 cents. Effectively you should consider the annual dollar amount on the box as a monthly amount to be safe. Double-check your utility rates as well. Even if you don't run it all day, your rates may be higher when you need it.
3. Most dual hose units will simply evaporate the accumulated moisture, but draining is better if you can swing it.
Side note: The planet isn't getting any cooler. If a mini-split is simply out of reach, the new U-shaped window air conditioners are a little cheaper for the same cooling capacity, and are quieter due to putting the compressor outside. Keep in mind they shouldn't be left installed year round if you get sub-freezing temps in the winter.
Other side note: Higher end units can also be used as heat pumps, but it's important to understand if it's truly a heat pump or simply supplemental resistive heat+fan (just an integrated space heater).







