Reddit reviews Keystone KSTAD70B 70 Pt. Dehumidifier
We found 3 Reddit comments about Keystone KSTAD70B 70 Pt. Dehumidifier. Here are the top ones, ranked by their Reddit score.
Room dehumidifier removes up to 70 pints of moisture from the air per dayDesigned to dehumidify a room up to 4500 square feetElectronic controls with LED Display and 24-hour timerAuto-restart saves your settings during a power outageSettings include Normal, Turbo and Auto-Defrost
To add some more context, you are basically talking about a dehumidifier. These have been around as a commercial appliance for decades and you can bet that the designs are quite well optimized at this point. Your basic calcs should back that idea up.
As one example of a small but efficient unit meant for home use,
https://www.amazon.com/dp/B00CEZA018
This is rated to remove (or produce depending on your view point) a maximum of about 33 liters of water per day. That will of course depend on the humidity and temperature of its surroundings, approaching zero in arid locales. The average human needs about 2 liters of water a day to survive.
To accomplish this, it requires 720 Watts of power (or about 1 horsepower). This is partially to run fans to provide the massive throughput of air volume I mentioned earlier, and partially to run a compressor for a refrigeration system. Adding refrigeration means you can reduce your 'exhaust' temperature and extract essentially all of the water present in the air.
So again, this is something that is definitely possible, but requires on the order of 10-100W of power. Workable for a stationary unit plugged into the wall, borderline feasible for stationary 'off the grid' applications, and all but impossible for portable units.
The first rule of invention: "Thermodynamics is a cruel mistress".
If you have come to this subreddit late like me then I can recommend the keystone 70 pint dehumidifier for your somewhat flooded basement. Its a frickin champ.
https://www.amazon.com/gp/product/B00CEZA018/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1
You'll also need a canoe and a viking hat. Will leave that to you.
I have similar problems in St. Louis, although mine seemed to be winter humidity more so than right now. I have a dehumidifier running in the basement at 55% and it's been doing a good job of keeping up without making my electric bill skyrocket. No signs of moisture down there. I also pushed dirt up against the foundation and sealed my gutters and roof where I suspected I has leaks and this has helped lower the humidity in my house and basement.
My house doesn't have exhaust fans, so I'll be installing one in the kitchen and the bathroom. I have all of the equipment bought, I've just been dreading doing the electrical. I haven't tried to get into the walls and ceiling yet since I bought the house last year. The old 1930's plaster makes it all a bit harder than current construction methods.
All in all though, if you are below 60% you shouldn't have mold growth but you might feel a little uncomfortable. A dehumidifier may help aid the A/C in removing extra moisture when it isn't running.