Electric thermal heaters

Dear Tom,
I recently read your article on electric heat (BDNAug. 9/10) and was wondering if you would comment on eletric thermal heaters such as those put out by Edenpure or Comfort zone.
Thank-you
Kirby

Hi Kirby,
These are electric heaters, that function in a rather weird way that apparently allows them to use fancy, confusing prose to try to sell you avery expensive electric space heater.
Save your money and buy a more traditional electric heater for a small fraction of their cost!
Tom