"Stormin Mormon" wrote in message
...
The units are rated in watts. That's how we know they are
electric.

The one I am familiar with, is 1500 watts gives 5,200 BTU.
That's a normal, household heater sold in the USA. These
don't seem to have any advantage. I like the black box
"ceramic" heaters, they seem safer. They are supposed to
also be higher efficiency, but who can tell?

--
Christopher A. Young
Learn more about Jesus
www.lds.org
.
Changing electricity into heat is pretty much 100% efficient regardless of
the way it is done.
Perhaps the ceramic heater is .0001% more efficient at it, but as you say,
"who can tell".