These flexible heat ducts fit in the 3″ outlets on the Snowbird Heater Duct models, and expand up to 62″ in length to route the heat where you want it most. The visible end has an attractive adjustable “delta” louver to control output.
For example you can mount the heater in a locker or compartment in the salon, then route one duct into the forward cabin and one into the salon, etc.