Generator noise
Has anyone been successful in using something to help quite the noise your generator makes? Mine is onboard in a compartment. I'm thinking along the lines of a sound dampening blanket or something.
Forum Discussion
Given the room, you can make an RV Onan as quiet as you want. You have to deal with a couple of issues- you can have transmitted sound- through the enclosure, or you can have reflected sound- from openings for cooling in the enclosure.
Most modern Onans already do pretty well with transmitted sound, but it can be made better. Mass is the standard for reducing transmitted sound (hence the lead), but changes in mass can do wonders- 2 layers of 1/2" plywood alternated with 2 layers of thin foam do better than 1 layer of 1" ply and 1 layer of foam.
But- reflected sound is the major complaint now- that can easily be helped with baffles lined with sound absorbing material- just make it so there is no line of sight to the noise producing item. Onan installation manuals give great instructions on baffling.
The final issue is exhaust- most reviews of the add on Onan resonator have been very positive- it quiets the exhaust, and makes it much "mellower".
Most modern Onans already do pretty well with transmitted sound, but it can be made better. Mass is the standard for reducing transmitted sound (hence the lead), but changes in mass can do wonders- 2 layers of 1/2" plywood alternated with 2 layers of thin foam do better than 1 layer of 1" ply and 1 layer of foam.
But- reflected sound is the major complaint now- that can easily be helped with baffles lined with sound absorbing material- just make it so there is no line of sight to the noise producing item. Onan installation manuals give great instructions on baffling.
The final issue is exhaust- most reviews of the add on Onan resonator have been very positive- it quiets the exhaust, and makes it much "mellower".
