Best Heater Brand..?

[http://houston-heaters.com/]

Hi to all
I am Rose, I bought Electric Heater last year, whole the year its working was very good. Now in side the home its working is good but outside its working is very bad. Its warranty is expired.
I want to buy new one is there any one can tell me which one the best?
But that can be available at online stores because i have no time to go down town.
Thanks