Gas Installation Ventilation Requirements

Front

Gas installations that do not need purpose provided ventilation.

Back

An instantaneous flueless water heater fitted in a kitchen between 5 m³ and 10 m³ volume.

Front

Minimum ventilation requirement for an open flued boiler with a 30 kW (net) input.

Back

150 cm²

Front

Ventilation requirement for a room sealed boiler with a 27 kW (net) input, vented direct to outside.

Back

High Level: 135 cm², Low Level: 270 cm²

Front

Minimum ventilation for a flueless natural gas space heater with 1.7 kW (net) input in a 60 m³ room.

Back

8.5 cm² + openable window

Front

Ventilation requirement for a flueless instantaneous water heater with 10.5 kW (net) input in a laundry.

Back

52.5 cm² plus an openable window

Front

Gas fire below 7 kW (net) rated heat input fitted in a room.

Back

Does not need purpose provided ventilation.

Front

Natural draught room sealed boiler fitted within a compartment.

Back

Needs purpose provided ventilation.

Front

Open flued boiler in excess of 7 kW (net) rated heat input fitted in a room.

Back

Needs purpose provided ventilation.

Front

Ventilation requirement for a flueless natural gas space heater not allowed.

Back

Not allowed without ventilation.

Front

Ventilation requirement for a flueless natural gas space heater with 100 cm².

Back

100 cm² + openable window