Unlike vented these logs do not require a chimney or flue to operate allowing more heat to stay in your home.
Vented gas logs vs wood burning.
Wood burning fireplaces and vented gas log fireplaces both require a chimney or similar ventilation to remove dangerous chemicals created by burning fuels.
The reason for this is that they do not burn the gas cleanly and create exhaust that is very similar to burning a real wood fire.
Real logs run the danger of producing flying sparks and creosote buildup in the chimney itself but gas logs produce a tame flame and put less matter into the air when burned.
Gas logs are more environmentally friendly.
If you re looking to add a supplemental efficient heat source to your home you may want to go with a vent free gas log set.
The epa estimates that gas fireplaces emit 99 fewer particlesthan wood burners.
This exhaust needs to be able to go up the chimney.
Also even the pleasant aroma of burning wood can be environmental and health hazards.
Fully vented gas logs must be burned in a fireplace that is capable of burning real wood and must be burned with the damper open.
Gas logs are a much safer heating and aesthetic alternative to a real fire especially if you have pets kids or limited space.
Some cities have no burn regulations at various times.
Vented gas logs are ideal if you value ambience over efficiency or if you have an existing wood burning fireplace that you want to convert to gas.
Yellow flames are usually taller than the ones in vent free gas log sets too.
The realism of the vented gas logs will be better than those in ventless gas log sets.