For heat output, ventless gas logs would be a better choice. They provide much better heat output than vented gas logs and vent-free gas logs are much more suitable for heating a room or home than vented logs.
However, burning fuel cleanly produces moisture, so ventless gas logs introduce some moisture into the home's atmosphere. Also, burning vent-free gas logs gradually depletes the oxygen in an enclosed area, so burning them for long periods of time requires cracking a window to allow in oxygen and some cold air that can offset some heating benefits.
Dawn - Elite Deals Product Specialist
on October 21, 2014