6.8.14 Oil – combustion air
Installations shall be provided with an adequate supply of combustion air.
Table 6: Combustion air to oil appliances
| Oil up to 45kW output | |
|---|---|
| England, Scotland, Wales and the Isle of Man | 550mm2/kW rating for an appliance in a room or space |
| Northern Ireland | Up to 6kW rating, 550mm2. Over 6kW, add 550mm2 for each kW above 6kW |
Last updated: 2nd January 2024