Quote:
Originally Posted by
666666
β‘οΈ
Over the past year I've found that in my basement, the temperature seems to be the same as the relative humidity almost all year long.... quite interesting. In other words, in the winter the temp is 50 degrees F and the RH is 50%... in the spring and fall the temp is around 65 degrees and RH 65%... and in the summer the temp is around 75 degrees and RH 75%... seems to track quite consistently all year long.
A problem I am finding now in the basement... if I run just an air conditioner, it does not get the RH low enough per temperature. I can run the AC to get the temp down to say 68 degrees F, but then the RH is still at say 62%... and I'd prefer it a little lower. I can lower the RH by running the AC harder, but then the room will get too cold and be uncomfortable. Looks like I may start using a dehumidifer along with the air conditioner.... keep the AC set to say 70 degrees and the dehumidifer set to say 50% RH. Of course the dehumidifier heats the air so in that regard it will be working against the AC, but... hopefully together both units will be able to keep BOTH the temp and RH where I'd like them.
Oh yeah... if I forgot to mention, basements suck.

Also in a basement.
Your aircon should de-humidify the air. At least ours does. But it is about the length of time it runs, not about the temperature.
Rod Gervais' book, "Build it like the pros", was very educational. Basically, most aircons are over-spec'd in relation to normal environments. Office for example are extremely inefficient when it comes to cooling, because windows are left open, doors are left open, and an enormous amount of the cooling is lost.
In a properly designed studio, the rooms should be air-tight. So from a cooling perspective, studios should be incredibly efficient. The problem is, if your aircon consultant over-spec'd your machine, then the machine only needs to run for 20 minutes to achieve the correct temprature. But the problem is that it takes longer than that for sufficient condensation to build. After reaching the correct temp, the aircon switches off. Now the condensation has built up, but not enough for it to drain away. So it just gets circulated back into the room. On top of this, an aircon's most inefficient period of operation is the first 10 minutes. So you pushing up your energy bill too.
Originally my aircon spec'd a 48,000 BTU machine. With the assistance of Rod Gervais' book and the downloadable tools, I realised i would only need 20,000 BTU for the CR, and 18,000 BTU for the tracking room, before fresh-air was taken into account. So i have ended up with a 24,000 BTU for the CR, and a 20,000 BTU for the tracking room.
There is a link in Rod's book to the downloadable files.