[TR] Cleaning Cardboard Radiator Duct

[Karl Vacek]

What about cleaning it really well, letting it dry thoroughly (maybe a few 
days in the furnace room ??), and then a good coat of something like 
Thompson's Water Seal before painting ??

Karl


> Oh well.B  Question, then.B  Is there a paint that would render cardboard
> impervious to rain, or is there, as Fred mentioned, a stainless steel duct 
> out
> there being manufactured by someone on the List???