are hose extensions available
There is a reference that the hose may be extended up to 10', however, it does risk losing efficiency and possibility of not operating properly. The hose part number is 12120600A12675.
From manual: The energy rating and noise information for this unit is based on the standard installation using
an un-extended exhaust duct (Diameter: 6 in., Length: 60 in.) without window slider adapter or
wall exhaust adapter A.
The unit with 10 feet extended exhaust duct is running by using 2 exhaust ducts (Diameter: 6
in., Length: 60 in. + Diameter: 6 in., Length: 60 in.). The Energy rating and noise information for
unit with 10 feet extended exhaust duct is not assessed. (For some models)
NOTE:We recommend that operating the unit at room temperature below 95°F . Since there is
a risk that the unit with 10 feet extended exhaust duct would not work at room temperature
above 95°F under some extreme conditions, such as the lower air intake be blocked for 50%.