Bosch GC 7000 WP Quick Reference Manual page 8

Flue and ventilation

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Bosch Flue and Ventilation Quick Reference Guide 2022

Table below is direct reference to

IMAGE NO: DESCRIPTION

300mm adjacent to a boundary line

The dimension below eaves, balconies and car ports can be reduced to 25mm, as long as the flue terminal is extended to clear any overhang. Any external flue

joints MUST be sealed with suitable silicon sealant

1,500mm between a vertical flue terminal and a window or dormer window, 300mm between two flue terminals

at multiple heights, please see fig 7/8.

1,200mm between terminals facing each other

Vertical flue clearance, 300mm adjacent to a boundary line

600mm distance to a boundary line unless it causes a nuisance. BS5440: Part 1 recommends that care is taken when siting terminal in relation to boundary lines

600mm minimum clearance from a skylight to a vertical flue

Vertical flue clearance, 500mm to non-combustible building material, and 1,500mm clearance to combustible building material

300mm above, below, or either side of an opening door, air vent or opening window

600mm diagonally to an opening door, air vent or opening window

300mm to an internal or external corner

2,000mm below a Velux window, 600mm above or to either side of the Velux window

400mm from a pitched roof or in regions with heavy snow fall 500mm

500mm clearance to any vertical structure on a roof, 600mm to a room sealed flue or 1,500 to an open flue

200mm below eaves and 75mm below gutters, pipes, and drains

The dimension below eaves, balconies and car ports can be reduced by 25mm, making sure the flue terminal is extended to clear any overhang. Any external flue joints

MUST be sealed with suitable silicon sealant

Flue clearance must be at least 300mm from the ground. Terminal guards must be fitted if the flue is less than 2 metres from the ground. Terminal guards must be fitted if

the flue is less than 2 metres from the ground or if a person could come into contact with the flue terminal

600mm distance to a surface facing a terminal unless it will cause a nuisance. BS 5440: Part 1 recommends that care is taken when siting terminals in relation to surfaces

facing a terminal

Flue terminal positions in accordance with IGEM-UP-10 (Edition 4) – minimum required distance.

Please note: For the GC 7000 WP 50 kW & 65 kW boilers, the below figures are only used when multiple units are being

cascaded together (refer to IGEM-UP-10), for single installations of the GC 7000 WP 50 kW & 65 kW boilers, please refer

to Figure 4 of this document to follow the guidance BS5440-1:2008.

Figure 5:

Reference

IGEM Calculation used

(See figure 4 & 6)

N/A

Distance G – (IGEM-UP-10, Fig. 12)

(Distance G = 19.32 x (net heat input kW) + 647.59)

N/A

Distance Y – (IGEM-UP-10, Fig. 7)

(Distance Y = 7.232 x (net heat input kW) + 93.708)

Distance F –

(IGEM-UP-10, Fig. 12)

(Distance F = 23.126 x (net heat input kW) - 618.84)

Whilst it is always our intention to fully assist, it is essential to recognise that all information given by the company in response to an enquiry of any nature is provided in good faith and based

upon the information provided with the enquiry. We recommend that advice should always be checked with your installer or contract partner. Consequently, the company cannot be held

responsible for any liability relating to the use or repetition of such information or part thereof. In addition, whilst making every reasonable effort to monitor the performance and quality of

our supply, installation and service network, we do not accept responsibility for the workmanship or operation of any third party company that the company may have promoted either in

conversation, e-mail, or other communication. Similarly, the views and opinions expressed in communication with individuals within the company may not reflect that of the business as a whole.

You can find this, and all issued technical bulletins on the Worcester website at: worcester-bosch.co.uk/tb or worcester-bosch.ie/tb

Worcester, Bosch Group, Cotswold Way, Warndon, Worcester WR4 9SW Technical Services: 0330 123 3366 | technical-advice@uk.bosch.com

figure 4

above.

Description

Distance from openings adjacent to or above

a vertical terminal (i.e., Windows)

Horizontal terminal towards an opposing

terminal (Ref. Figure 6)

Distance from openings below a Vertical

terminal (i.e., Skylight)

Distance required for flues with openings