My first annual

[Tom-D]

So is it just my opinion, and not based off anything that a whistle slot is a good idea in cold weather.

That without one, if the outgoing moisture freezes, that pressure will still find a way to vent, and you very well might not like the way it finds to vent?

You're the APIA Tom, you tell me, name 2 pros and 2 cons for me

What could I write that would make you believe anything than what you already believe ?

 

[James331]

Not at all Tom, give me some factual info on why a whistle slot is a bad idea, I'm all ears.