All electric resistance heaters have the same efficiency: 100%. If the
label says it pulls 1750 watts from the wall, it will deliver 1750
watts of heat to your area.
The features are what differ between them. The ceramic heaters are
nice because they are inherently safe. They use a Positive Temperature
Coefficient (PTC) element, which means that as the temperature goes
up, the resistance goes up, so they are self-regulating. You can
control the amount of heat by the speed of the fan, which effectively
cools the element, allowing it to have a lower resistance, allowing it
to produce more heat. But if it tips over and blocks the fan, the
temperature of the element goes up, the resistance goes up, and they
produce less heat.
So other than paying extra for a ceramic PTC element with a variable-
speed fan, don't spend a lot of money on one heater over another. 1750
watts from a cheap heater will produce the same amount of heat as 1750
watts from an expensive heater. If any of them claim to be "more
efficient," run screaming from the room, as their marketing department
is being paid too much, at their customers' expense.
:::: The earth's immune system, so to speak, has recognized the
presence of the human species and is starting to kick in. The earth is
attempting to rid itself of an infection by the human parasite. --
Richard Preston
:::: Jan Steinman <http://www.Bytesmiths.com>
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