A birds nest in a flue
Honey bees have taken home here
An example of how creosote can block your chimney flue/pot
Here wire was stuffed into a pot to try prevent bird entry. The wire allowed creosote to clog up, thus reducing the evacuation of the flue gases and carbon monoxide.
A cowl that had been fitted using solid fuel which wasn't suitable for that use.
This is a terminal which is suited for a disused chimney and was used for a live appliance
Like wise here......The potential for disaster is clearly seen as the flue gases are prohinited from escaping safely.