If I have a computer and a heater coil that consume exactly the same amount of energy, which would be more efficient at heating my room? This is assuming that they both have the same fans and heat dispersion characteristics.
And if the answer is that they are the same, then why don't we change all of our personal household heaters into computers?
Best Answer
They are almost identical.
If the incoming energy is the same then all you care about is how much of the input electrical energy can escape from the room - everything else will become heat. Even the fan noise becomes heat when the sound energy hits the walls.
The only part that potentially can escape is microwave emissions from the CPU clock.
Computers are just slightly more expensive than electrical heaters