TucsonJim,
Could you post a picture (or description) of your son's enclosure? Do you think the muffler or the enclosure helps the most?
I have been thinking about making some sort of enclosure for my generator. I would want it to be able to be stored flat in my truck for transport and not be too heavy or hard to set up. Hubby and I have come up with all sorts of ideas, but cannot settle on one. We have looked at HD for soundproofing. There is a sheet of some material that is lightweight, but seems like it might not do the job. So we were thinking about glueing it to some plywood. Any thoughts?
I have searched this website and gotten some ideas on dampening the noise, but can't find much definitive information.
