room heater

Hi Guys,

I wanted to know which is the best type of room heater for indoor use. I use to intend to use it in my bedroom which is not more than 5m sq.

Please be kind enough to suggest a good company for the heater as well.

I have already tried an oil based room heater and it proved to be a disaster. even after an hr of keeping it on, i could barely feel any heat (standing at about 2 inches from the heater).

thanks in advance.