Flues at wrong angles (again!)

We are increasingly being asked to look at boilers that have developed leakage problems from the flue joints. 9 times out of 10 we find that the clues have not been placed at the correct angle of 1.5-3.0° depending on manufacturer and so condensate liquid (carbonic acid) collects in the seals and destroys them.

This time the faulty flue was on an Ideal iMax 60kw commercial boiler and so made the whole job a lot more complicated.

The whole flue system was replaced and then fitted at an elevation necessary to create a 2.5° fall. This meant lifting the flue terminal from its original position so that it has sufficient gradient.

The flue was then effectively supported with clamps at ensure there was no movement and that it stayed at the correct angle and the angle of fall checked with a laser.

Unfortunately, for the church, the second boiler’s flue has also been installed at the wrong angle and this will need replacing soon.

But for now the boilers are you and running and the church is once again a warm place to worship.

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