News wrote:

I know, a 4" pipe under _your_ roof ridge should be fine, but you're
practically in the tropics :-)

England in the tropics? Well if it stays below freezing all day, it is a
very cold day. In Winter, dropping below freezing during the night is
common.

Well the UKs most northerly part, is further north than the most southerly
point of Greenland.

Note the smiley... You are, in fact, almost 7 degrees north of me. I was
born in London, I know the temperature difference.
--
derek