The thing to remember with aluminium foil is both sides are different. One is reflective (shiny side) and the other is dull and would absorb heat. As with the baked potato, one would wrap the foil with the shiny side in!
Kennard, thanks for the props, if only someone could come up with a way to point the filter at the air without cutting.
Question to ponder, would the airflow from tumble-dryer ducting become turbulent, or could one use it to route air to the filter that is in the low position?
Also, any input on whether the filter in the low position is better there with a bend in the flow, or positioned up higher without the bend?
Looking forward to all your response.
