Although they've been around for a significant amount of time, gas fireplaces became quite popular with homeowners since they are energy-efficient and price-effective. Not really only could they be convenient basically due to the fact they burn fuel and never wood, owners don't have to worry about ashes and soot. Their main safety feature which happens to be the sealed combustion unit which reduces the specter of combustion gases spilling right into the room. Direct vent fireplaces draw their combustion air from outside while venting to the identical outside atmosphere. So they aren't consuming the great and comfortable air contained in the house.