... system used for central heating for nearby houses or office buildings. 40-60 degrees celsius through radiators makes sense. ...
Forced hot water heat temp is 82-98C. 40-60 for radiant heat (not really common).
Would have to be fairly special houses -- central heating (for apartments) usually means *steam* heat (convenient, because no return pipes with steam).
MFW "... According to a report published in the Science Daily" misread "Suicide Daily."
Also the language in the chart:
"Jumping
from heights" (So jumping up & down
won't do it; check.)
"Cutting
with sharp objects" (Put away those marshmallows!! I read the Wikipedia, it simply won't work!)