What is the difference between vented and vent-free?
Vented gas appliances (i.e. gas logs) are decorative, they provide little or no heat, because they must be operated with the chimney damper fully open. Also, vented log sets have a high propensity for generating soot. Vent-free gas log sets are operated with the damper fully closed. Therefore, you capture 99.9% of the heat output, comfortably heating from 1000 to 1200 sq. ft. In addition, vent-free gas log sets can be ordered with a built-in automatic thermostat that will maintain the heat level you desire.
