Originally Posted by jgouras
i have a delema. my cold air return ( according to my manual) on my 66 tradewind goes into the black water tank area. why is this? since it is pulling air from this area to the heater to be heated it does not keep the tank from freezing as i once thought.
help i am very perplexed
Your confusion probably lies in the fact that the duct is for heat distribution , not return. It will supply warm air to the black tank to prevent freezing.
Mine has a flex hose that takes off just rear of the rear register. Return air is sucked in under the cabinetry.