Ariston C Operating Instructions Manual page 16

10. Installation Requirements
iii) Terminating into a gully, below the grid level but above
the water level.
iv) Into a soakaway.
N : If any condensate pipework is to be installed
OTE
externally then it should be kept to a minimum and be
insulated with a waterproof insulation and have a continuous
1. Internal termination of condensate drainage pipe to internal stack
2. External termination of condensate drainage pipe via internal discharge branch
16
(e.g. sink waste) and condensate siphon
(continued)
fall. The total length of external pipe used should not exceed
3 metres.
Some examples of the type of condensate terminations can
be found below.