So, I was kind of worried about all the stories on here of the horns coming alive at 2 am in winter. Well so far they are working good even at -40 to 50 degrees celcius. They do require a priming blast ( to clear the cold air?) to get the correct tone. But after that its smooth sailing. my compressor, tank is mounted inside and everything else is out side. This is a hornblasters shocker kit.
As well with the compressor mounted internally there is maybe a drop if that of water in the tank over a 4 month period.
I know I was worried about this so maybe it will be of future use to another fellow Canadian or even some americans;)