Installed here is a Grant Vortex Eco 15/26 boiler, For the customer it was installed with a high level balanced flue to get the flue out of harms way outside.
The boiler was installed as part of a complete new heating system in a house that was previously only partially centrally heated downstairs. Hot water was provided by a 170 litre unvented hot water cylinder.
Also in the photo can be seen the heating expansion vessel as well as a Magnaclean filter. The installation soon wont be seen at all as the customer was intending on having a cupboard constructed across that entire end of their utility room.