Use the wizard to determine the required size,
or if you prefer you can refer to the table below.
| Flue Sizing Wizard |
|
100mm |
125mm |
150mm |
Kerosene Central Heating Boiler |
|
|
|
- Output up to 25kW |
• |
|
|
- Output 25kW-40kW |
|
• |
|
- Output 40kW-60kW |
|
|
• |
Kerosene Stive/Cooker |
• |
• |
• |
Kerosene Water Heaters |
|
|
|
- Input up to 41kW |
|
|
• |
Kerosene Visual Effect Heater |
|
|
|
- Output up to 17kW |
• |
• |
|
High Efficiency Gas Fires |
|
|
|
- 'Radiant' to BS7977-1 2002 |
|
• |
|
- 'Inset' to BS7977-1 2002 |
|
•* |
|
- 'Backboiler' to BS7977-2 2003 |
|
• |
|
Gas Flue Blocks |
|
|
|
- Connection OUT |
|
• |
|
*Subject to appliance manufacturer's testing criteria.
Flue size selection
- B Vent is available in100, 125 and 150mm internal diameters.
- The flue size must be as recommended by the appliance manufacturer and must not be reduced, and never smaller than the appliance spigot.
- This information is provided as a guide only, and for exact flue sizing recommendations, refer to appliance manufacturer's installation instructions and design guide.
