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When making the connection between pellet boilers and chimneys, install T-joint with inspection hole, connected
directly to the boiler or elbow with cleaning door. Using of T-joint must allow cleaning of ash that builds up on the
bottom of the pipes without dismantling them. Smoke in the chimney connector is under slight pressure. Whenever
cleaning is done, it is required to check tightness of the lid.
Figure 5 – Elbow with a cleaning hole
It is recommended that elbows of 90° should be in three parts (see Fig. 6).
Figure 6 – Shapes of elbows (knees)
Connection between pipes must be made with a male connector facing up (see Figure 7).
Figure 7 – Way of connecting flue pipes
Avoid long horizontal connection of pipes to the chimney, up to 3 m. Place the flue gas pipe at an angle of 5°
upward. Connecting the boiler to the chimney with the horizontal pipe larger than 1 m, without a T-inspection hole,
is not recommendable.
Direction of
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