I know i am asking a question in the wrong forum but so far this forum has answered almost all of my problems.
if a heater says 1500w with 70% efficiency, does that mean the actual Watt it is consuming is 1500/.7 which is 2142w? (which will tax on my utility bill)?
And what is the efficiency (doin't need to be exact) for a Ceramic Electric Heater?
What it says is that 30% of the energy it consumes is wasted, pretty much. Unfortunately, I don't know the average efficiency for a certain type of heater, sorry. Try Google? :(
As an aside, if an electric heater is only 70% efficient, where does the other 30% go, given that usually inefficiency in energy transformation in appliances is dumped as heat?
I'd expect heaters to be really, really efficient. Sound doesn't take much energy. What else is there?