4.5 FLUE TERMINAL LOCATION - Figs. 4.3 and 4.4 Q N O P J D G Boundary H I Fig. 4.3 Notes: 1. In addition, the terminal should not be nearer than 150 mm to the framework of an opening into the building, i.e. a window surround or door surround. 2. This clearance may be reduced to 25 mm without effecting the performance of the boiler. However, to ensure the condensate plume does not affect adjacent surfaces a clearance of 300 mm is preferable. 3. These clearances may be reduced to 25 mm without effecting the performance of the boiler. However, to ensure the condensate plume does not affect adjacent surfaces the terminal can be extended beyond gutters, pipes, eaves, balconies etc.
by upto 500 mm. If the flue is extended more than 500 mm outside, it should be boxed and insulated. 4. To reduce the possibility of nuisance to neighbouring buildings etc. it is recommended the terminal should not be less than 2500 mm from car parking spaces, building boundary walls, fences etc. 5. A terminal must not be sited under a car port roof. 6. In certain weather conditions the terminal will emit a plume of steam. If possible avoid positioning the terminal where this may cause a nuisance, i.e. positions A, D, G, H, J or M. 7. The flue terminal must be exposed to the external air and the position must allow the free passage of air across it at all times. 8.
The flue terminal must be positioned where products of combustion will freely disperse and not cause a nuisance. 9. Where a terminal is sited below 2 m from the ground or floor level, the terminal must be protected by a terminal guard. In these situations, consideration should also be given to prevent nuisance plume and fumes in areas such as access routes, passageways, patios, balconies etc. 12 Alpha E-Tec 28 and 33 - General Boiler Information Terminal position Min. distance (mm) A Directly below an opening, air brick, windows, etc.
300 (See Note 1) B Below gutters, soil pipes or drain pipes 75 (See Note 3) C Below eaves 200 (See Note 3) D Below balconies 200 (See Note 3) E From a vertical drain pipe or soil pipe 150 (See Note 3) F From an internal or external corner 300 (See Note 2) G Above ground, roof or balcony level 300 (See Note 9) H From a surface or boundary facing the terminal 600 (See Note 4) I From a terminal facing the terminal 1200 mm J Above an opening, air brick, window etc. 300 (See Note 1) K Vertically from a terminal on the same wall 1500 mm L Horizontally from a terminal on the same wall 300 mm M Horizontally from an opening, air brick, window etc.
300 mm (See Note 1) N Minimum protrusion through a roof 300 mm O From a vertical obstruction 300 mm P From an openable window 600 mm Q From an adjacent vertical terminal 600 mm