High Efficiency Gas fires

come in Three forms of high efficiency fires available, Conventional Flue (One that uses a Chimney), Balanced Flue (One that has a pipe through the outside wall like a modern Combi Boiler) and Catalytic Flueless (One that uses a Catalyst to absorb harmful fumes from the exhaust gases).

All of these high efficiency fires have one thing in common that is a glass front which is the vital element as it stops the 'draw' of heat up the chimney.