How are generator decibel levels calculated?
Most of the famous brands mention the noise output at full load. It would be useless to know the decibel levels unless you are able to compare them to values you would know. Normal speech is at about 60dB. A difference of 5dB would not be discernible. Residential generators should perform at about 64dB to 68dB. The standard distance expected between you and the generator is 21 feet according to US standards and 23 feet according to EU standards. The enclosure, air flow and noise insulation play the main role in deciding noise levels. Be sure to run the generator at full output before checking the noise level.
