Vaillant EcoTec Plus 937. Flue adapter removal and heat exchanger seal replaced

I've already posted a couple of videos replacing the seal on the top of the heat exchanger. However on this particular model the removal of the flue adapter proved tricky due to its different design. I therefore decided to post. Only for qualified gas safe registered engineers.

Видео Vaillant EcoTec Plus 937. Flue adapter removal and heat exchanger seal replaced канала North West Gas Certificates