Yamato Co., Ltd is involved in developing, manufacturing and selling the silencers to prevent the noise for industrial silencer, automobile exhaust and home use silencers.

Customers using household (oiled) hot-water boilers in winter seasons As a result of inconveniences to neighboring residents when using at midnight, consulted about the noise of exhaust combustion gases and installed a silencer like a photo I was allowed to do.

As a result, complaints of neighboring residents are said to disappear.