Installs remotely in the interior of the home - not restricted by exterior applications.8-position mounting brackets or suspends with special suspension chains (hanger kit included).Designed to work independently from Internal or External blowers, this is not a boost blower - the HLB series needs no other blowers in the system.Specially designed resilient motor mounts and housing isolation mounts prevent vibration noise.Flexible duct design allows straight-through or right-angle connections with built-in damper.