I got the Frigidaire 5000 BTU model and I can’t find the watt usage anywhere, but I have read a couple of places it should be about (unconfirmed source) 500 watts. With my military discount I got it for $113.65 at Lowe’s including tax. I set it up in the bedroom and it cooled that room down very quickly and by using a couple of fans I can move some of the cool air into my computer room and toward the kitchen. I think I could cool the whole house with a set up of two of these small A/C units at opposite ends of the house and few more fans for circulation.
The A/C unit isn’t much louder than a box fan, so it did not disturb my nap this afternoon. It also has a fan option so you can switch it if it cools down and just use the fan function. It was a little difficult for one person to install especially if the window you are using keeps wanting to close while you are setting it up, but it would very simple for two people one inside and one out side to brace it. It weighs just over 40 pounds so it’s not all that heavy which will make it easy to remove and store for winter.
Overall I would recommend this little A/C unit for anyone that has hot weather to deal with and needs to cool a room or two for sleeping that can be powered via a generator. The ability to cool down could be critical for someone that has medical issues or suffered a heat related injury. Young children and the elderly can be susceptible to high temps so this little unit seems like a good low end, low power compromise. Plus I don’t trust the utilities or the PTBs deciding what power I get to use or becoming a victim of any” electric load balancing” plans they may hatch up.
UPDATE: According to Frigidaire the 5000BTU A/C unit requires 456 watts. I notice a drag on power when it first starts up the compressor so you will want a little extra range of peak power for your generator. but a 1200-1800 watt small gas generator shoeld work fine.