Ventilation Requirements for Gas Appliances

Front

Minimum free area of permanent ventilation for a gas cooker and open flued boiler in a kitchen above 10 m³ with a door to outside.

Back

32.5 cm²

Front

Additional vent free area to remedy spillage from an open flued appliance due to a depressurising extract fan.

Back

An extra 50 cm²

Front

Factors that may reduce allowances for 'adventitious ventilation' for a gas fire.

Back

Curtains, cat flaps, draught proofing, house location

Front

Minimum ventilation requirement for an open flued, decorative fuel effect appliance with a maximum rated input of 10 kW (net).

Back

50 cm²

Front

Placement of permanent ventilation for two open flued, decorative fuel effect appliances in a through room.

Back

Have 50% of the ventilation provision sited equally at either end of the room.

Front

Total rated input for a gas cooker mentioned in the document.

Back

17.5 kW (net)

Front

Maximum rated input for an open flued boiler mentioned in the document.

Back

13.5 kW (net)

Front

Ventilation requirement for a gas cooker and open flued boiler in a kitchen with a door direct to outside.

Back

32.5 cm²

Front

Effect of curtains on ventilation requirements for a gas fire.

Back

May reduce allowances for 'adventitious ventilation'

Front

Effect of cat flaps on ventilation requirements for a gas fire.

Back

May reduce allowances for 'adventitious ventilation'