Device with parallel flue gas discharge material
Use the longest pipe to test for the maximum length. In this case this is the flue gas discharge pipe, that has a length of 25 metres. These 25 metres are composed of the pipe material parts 1, 2, 3, 4 and 5. The length of the transition piece need not be taken into account. The total number of used bends, in the flue gas discharge and air supply, is eight. The bend in the transition piece need not be taken into account. According to the table, 4.6 metres shall be calculated for each bend. This makes the total pipe length:
(4.6 x 8) + 25 = 36.8 + 25 = 61.8 m.
This is shorter than the length of 100 metres given in the table. Therefore the installation meets the requirements.
Instruction manual TWI | 27 |
