Heater?
Anyone used one of these for a heater when hooked to shore power? It would seem to be quiet, compact, and at 425 watts, plug friendly. Envi Heater
Forum Discussion
Dutch_12078 wrote:
A minor nit, but electric heaters with fans are not quite "100% efficient". A small amount of the power drawn is converted to mechanical motion rather than heat.
You are quite mistaken.. Here is why.
While it is true that the motor that turns the fan (if it has one) is less than 100% efficient the difference is expressed as HEAT, and the conversion of the rotary motion of the fan blades to moving air is also less than 100% but again the difference is HEAT, and as the air moves around it rubs up on stuff slightly warming them due to friction (This continues till all the energy imparted by the fan is blead off) so once again we have HEAT.
So all that "Lost Energy" fed to the fan motor, Is recovered as HEAT.
And the heater is once agian 100% efficient.
You should know I have studied this kind of thing.
