YES!!!!
Making a real long story short, I did the math for the ones I bought. I got the KWH useage for the heater which is about the same as a MODERN coffee pot for hourly useage and then I called Cass County Electric here in N.D. and then I did the math. It came out to .08$ an hour to run the 1500 I think it is. The ones that I got had a 500, 1000, and a 1500 and they had a promotion where if you got the 1500 you got the 500 for 'free'.
I finished my basement last year and it is about 1400sf. There is a gym, family room, full bath room, and a bedroom. The only room that had heat running to it was the bed room. There are NO heater vents anywhere else at all in the basement of my two story home. We put the big heater down there and set it at medium....it stays 66 down there with that heater alone!
My father-in-law came in January with my brother-in-law from Virginia here for my wife's Grandma's funeral. Anyways, the in-laws have thin blood and were "freezing" down there so the wife turned it on high. A week after they left, the main floor of our home was 74 and we couldn't figure out why as the thermostat was at 68. We finaly remembered that she turned the heater up! The heat coming up was making the main floor warmer too.
Also, my wife has a business out of the home so we have to add up our total expenses for the house so the accountant can do his stuff with them..anyways, our heating bill was 250.00 LOWER then the year before! No Shiat!
We are actually buying another set for this year too as we are going to put the big one on the main floor and the little one up stairs as we have 3 bedrooms and two full baths upstairs. My wife put the little one from before in her office (Licensed Massage Therapist so her massage room has to be warm/hot).
I can not sing the praises enough for these things. Tonight I will get the companies name and contact for you and you can do the KWH/cost math yourself! I was going to do this anyways as I am going to get the same ones I have.
Peak KWH is @ .075000
Off-Peak KWH is @ .06000
Be careful as there are many different companies selling these and I have heard that some of them are not that hot. (Sorry had to use that pun.) I am only talking about the ones that I bought.
When I bought mine it was like 500.00 for the two or something like that.