If an ordinary residential unit won't work for you, then you should consider something such as a Santa Fe, Ultra Aire, or another unit made by Therma-Stor. These are the kind that can be ducted, have ... read more
Make sure the room is well sealed. I don't know how old your house is, but there is a surprising amount of noise that can leak in around poor quality windows. If you need to replace the windows, find ... read more