The EUX70 has both cooling air emissions and combustion exhaust components.  The custom thermo-formed polycarbonate cooling air shroud simply attaches onto the black sound cover with four piercing and tapping screws and the combustion exhaust bolts onto the exhaust manifold adapter.  The five inch diameter cooling air tube will extend to approximately three feet from the generator which is the also the length of the one inch flexible combustion pipe.  The EUX70 is designed to allow the enclosure of the generator in an outbuilding for protection from the weather, security, and sound reduction.  Also see the wall attachments #1GDV and 5GDV that Generator-Line.com has to offer to attach the emission pipes to the exterior wall.  Warning!:  The EUX70 is not for operation of the generator in or near living areas because of the risk of carbon monoxide exposure.