On 13 May 2006 18:19:56 -0700, "
wrote:

how old is your oil tank? they frequently rust more from the inside
out...

moving it may bring about leaking.

ask your oil supplier about safe distance....

You're more likely to be limited by the requirement for working
room around the furnace than by safe set-back limits. If YOU can
get between the two and work, the furnace isn't going to heat
the tank enough to matter, and if the tank blows a seam or
fills the basement with vapor, then no amount of distance is
going to be enough. If you find that the tank is warm to
the touch when the furnace runs, just shove a panel of gypsum
board between them.

-Goedjn