I have just bought a home with a broan-nutone system.
I have discovered the previous owner must have only used it on the main floor as I see it damaged the paint and woodwork on every corner on that floor.
( I bought a hose sock after seeing that!)
They did leave behind an extra non-electric hose which they must have only used in the garage as the hose isn't long enough to get the whole upstairs and there was no corner damage up there.
I was thinking about getting the system running up stairs but after trying and an air turbine head and finding it disappointing, and the hose not long enough, I have decided it is more affordable to purchased a hoover for the upstairs.
Just wondering for those of you with this system or any central vacuum, if you actually use it on more than one floor? If so have you bought a complete set for each floor or do you drag hoses and heads around from floor to floor?