On Mon, 13 Nov 2017 09:56:03 -0800 (PST), wrote:

However, she also mentioned the inlet and outlet pipes. Could
they
freeze and present a risk? Anyone venture an opinion?

They could but assuming the house underneath is heated not very
likely unless you get several consecquative days around -10 C at
night and not rising above freezing during the day.

Omit insulation underneath the tank, lag tank & pipes. You can always
use scrap cloth if you've got nothing else.

Yep, doesn't take much to keep Jack Frost out. The biggest danger is
if the pipes pass through an area with a draught from outside coming
in.

--
Cheers
Dave.