Generator quieting
A while back someone mentioned looking for a quieter muffler to reduce the noise of their gen. That question brought to mind that a video needs to be made which should clearly show that much of the...
Forum Discussion
pianotuna wrote:
Since a 1 square inch hole transmits as much sound as 24 square feet of gyprock, sound control for a generator is more about reflecting than containing.
I agree ! There are some materials that will absorb noise energy but the best require a lot of space.
If you can build an insulated box that sit OVER the generator with a 3-6" gap all around the bottom the noise has to bounce around before it can exit through this bottom gap.
Your second problem is HEAT ! Heat wants to go up, so you need a fan to push it down and out.
Where ever the exhaust comes out, you want extra space so that you can install a heat shield. A metal plate mounted on standoffs 3-6" from the side of the box. You probably need a top heat shield mounted on standoffs also. A short extension from the muffler into a 90 degree elbow and another short piece of pipe so that the exhaust exits downward and close to the ground will make a difference.
