There's nothing better than the comforting warmth of a fireplace on a fall or winter evening. However, wood burning fires can be messy and release pollutants. Fortunately, there are several environmentally friendly, cleaner burning options.
Although electric fireplaces don't produce as much heat as other options, they're relatively inexpensive, clean burning and 100% energy efficient. If you're looking for a warm glow but don't want a lot of heat, this may be a good choice.
Natural gas fireplace produce more heat than electric and burn cleaner than wood. Keep in mind that gas fireplaces must be vented and will lose heat through the flue.
Ethanol fireplaces burn biofuel, so they are clean burning and eco-friendly. They are easy to install, but care must be taken since ethanol is extremely flammable.
Pellet stoves generate heat by burning sawdust pellets, which are nontoxic and immune to bacteria, fungus and pests. Pellet stoves are 75%-90% efficient and have low emissions. However, they require electricity to operate, and the pellets not cheap.