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The gas engineer tells me that as well as replacing damaged ridge terminal we HAVE TO also replace the 3 metre plus 2 bends section of asbestos flue from where it enters the attic near eaves up to the ridge with twin skin He says there is an adapter to connect the twin skin to the asbestos pipe...

We have a Janus 3/30 water boiler which is currently flues through an asbestos flue jointly with our warm air boiler. There is damage at the ridge terminal and so we are considering its complete removal of said flue. Ignoring the warm air boiler as plan to replace. The janus document says the...

Thanks , that is very useful and reassuring.

Can someone clarify the ventilation requirements fo a JS J70/90 Mk2 The boiler is in a compartment with a door. The door I believe has adequate ventilation of the high level grill 55 sq ins and low level grills 94 sq ins. The book in words says that the external wall ventilation shoud be at...