Flueless fire don´t need to be connected to a chimney or flue pipe. Rather, they burn cleanly enough to be able to release their fumes back into the room through a vent at the front or top of the fire. The flames reach up through gaps in artificial ceramic fiber logs.

They´re actually designed to burn gas more efficiently than vented versions, so they produce less fumes.  Flueless fires require an air vent leading from the room where it is located to the outside. Depending on the size of the kW heat input dictates how large the air vent neeeds to be.

Flueless gas fires and stoves are some of the safest products on the market and to improve their performance a catalytic converter system is integrated.