You pay for watts, not for volts. The 220v, you can use smaller wire when
installing. Not more energy efficient.

I don't know about 220 volt GFCI.

"Hydronic" I thought meant that it heats water, and then the hot water goes
to the area to be heated. It's still electric heat.

--

Christopher A. Young
Learn more about Jesus
www.lds.org
www.mormons.com


"Paul" wrote in message
...
Can someone refresh my memory as to why 240V electric baseboard heaters are
"more efficient" than 120V? In my application I am looking at install one
750W electric baseboard in a bathroom, on a dedicated 20A 120V circuit, but
the heating man strongly suggests I use a 240V model. Problem is the
breaker box is completely full, and I'd have to run a subpanel just for this
circuit if we go 240V.

My other concern was GFCI protection - at 120V I could install a GFCI
breaker in the panel to protect this heater circuit -- do they even make
240V GFCI's for the panel (GE)? I am a little bit worried about someone
splashing water from the sink or a toilet overflow going into the electric
baseboard heater -- the baseboard will be within inches of each.

Last item - electric "hydronic" baseboard sounds better than the standard
electric baseboards - more even temperature - but I also saw a website say
the hydronic units were "safer" - why? because the heating element is
enclosed in a fluid tube and not exposed?

Thanks.

-- Paul