"Autymn D. C." wrote in message
"point of use": There are no points; there are spots. How efficient a
heater is is dependent on your room, its outside, and their
temperatures. Yes?


No. Efficiency is the ratio of heat into a room versus the amount of fuel
burned. ALL electric heaters are 100% effiecient. All fossil fueled
heaters are somewhat less if they have a vent to the outside. IOW, if 20%
of the heat goes up the chimney, you have an 80% effiecient heater.



Now, they can use the heat in different ways, but I believe the claim
that this device is somehow dramatically different than other heaters
and is going to save you a whopping lot of money is bunk. You can

Beliefs are bunk.

Heat is heat. 1500 watts is 1500 watt, no matter what style or brand of
heater. $30 gets you a good one.