I couldn’t believe what I saw when I was called out for a boiler repair!
Luckily this boiler was off, and had been for a number of months! – I was called out by the estate agent to come and have a look, prepare, repair and service the boiler and actually the boiler its self was new, and had only been used for 8 months until it was switched off.
As you can see from the picture, the flue had become disconnected. I have no idea how, but it just needed to be secured back in place.
Always get your gas appliances checked!