They work pretty well, I live in the 2 hours north of Quebec City and it works most of the winter. Today is the first day that I turn it off as it's -22C outsid

They work pretty well, I live in the 2 hours north of Quebec City and it works most of the winter. Today is the first day that I turn it off as it's -22C outside, but as soon as it's -19C it could work again.