cdevidal wrote:
The genny is rated at 68 dB at 20 feet, thus at 75 feet it's about 55 dB, same as normal office noise or a quiet stream. And when our windows are closed, I doubt we'll hear it at all.
This link confirms that. Says that a single pane window cuts down noise by anywhere from 28 to 35 dB, depending on the thickness.
https://books.google.com/books?id=rxlk9PgRZj4C&pg=PA119&lpg=PA119&dq=how+many+db+do+single+pane+windows+cut+down&source=bl&ots=5TbCwOX8Qs&sig=7-6Mow2ZU1GRWMXsDl0N0CIQgPI&hl=en&sa=X&ei=-cvwVKTmJcijNs-ngZgC&ved=0CDUQ6AEwBA#v=onepage&q=how%20many%20db%20do%20single%20pane%20windows%20cut%20down&f=falseThat means what was 55 dB now becomes 27 dB, same as a whisper or rustling leaves. The air conditioner itself will be much louder.
