Reply to all-- basements are usually under a house. Up here in 16-0 country, most houses have all of there mechanicals in the "basement"-- Some in garages. The lone sprinkler was elbowed/tee'd off of a potable cold water copper line. Can not remember whether the heat was oil or gas?
It took me some thinking to embrace the idea. I'm going to cut in a sprinkler over my oil boiler in Needham and then one over my gas furnance in Maine.
Can't hurt. Might sleep better. Bridgton Fire Dept. never lost a foundation. Needham FD averages 6 minutes to my neighborhood.
Hope this helps. Go Pats

__________________
Jack Ahern Boston on the Charles and
Bridgton,Maine
MEMBER ASHI MeCHIPS SPREI