"energy rating" appliances are not based on efficiency of thermo dynamics efficiency limits.. .. its based on a arbitrary amount lower then that.. deemed acceptable to regulators as "efficient" in regards to known materials manufacturers deem cheap/safe to be plausible to use for consumer goods, by which making those products wont risk a companies liability or risk
So you're telling me running a 2kw appliance for one hour will burn 1kwh of electricity and turn it into heat and 1 kwh will just be .. transferred where? Do you actually understand the law of thermodynamics?
Energy can only be transformed in a system, it can't be destroyed, I suggest you write down an essay and send it to those idiots at universities telling them how you found a way to destroy energy and not create any other form.
scared to try? well lets move on to the other thing you are not sure of
It's far better if you try something else.
Buy a heater since you obviously never owned one, buy the cheapest smart socket on the market that has power readings and you're going to be in a for a surprise to what happens to that electric heater when it hits the built-in limits, magically the power consumption will drop to zero.
Because there is no way in this universe to run electricity through something without generating heat, again laws of physics, 6th grade.
you want to imply they must all be following some max efficiency of some natural law of all converting 2kw into Xmj of heat.. that no other product can surpass... you will prove yourself wrong instantly by test driving heaters..
Exactly!
There is a law, you earn it in the sixth grade, and energy can't be created or destroyed in a closed system.
Since the heater is not giving the energy in its pure form away, it only transforms it, there is no way (again laws of physics) for 1 kw to equal once 0.8 joules and once 78 joules, again, it's the law of physics.