On Aug 17, 4:54 pm, "thehip" wrote:
Can I use teflon tape(white) on the steel black pipes(2 1/2") for a steam
boiler? The pipe threads
in question are the ones that connect directly to the boiler. Or should I be
using some kind of paste?

Black pipe for a steam/water line? My boiler is galvanized for the
hookup to the boiler, then goes to all copper for the manifold and
bleeder, etc.