Are fireplaces and wood stoves a “clean way” to heat your home?

I heard that wood burning stoves and fireplaces are cleaner then regular natural gas operated heaters…why? and is that true?

Fireplace??????????

My house has a fireplace which is approximately 13 years old. (the house is 13 years old). Anyway, when I build a fire in the fireplace there is smoke in the house. What could be wrong with it? Could it be clogged up or something. It is a Marco Fireplace. Thanks
How do I know if [...]