How do radiators work?
October 5, 2005 7:35 AM Subscribe
How do radiators heat my apartment?
posted by RobotHero to Home & Garden (7 answers total)
I've always assumed that heated water went in one side and out the other. I've just moved into an apartment with exposed radiators on the ceiling, and there's only one pipe going in, so that theory's out.
For some of the radiators, when I turn them on, air starts hissing out of what I thought was a safety valve. Others remain silent. Which one of these means it's broken?