Boiler inside a sealed garage query

i think that boiler is room sealed therefore takes it's combustion air sirectly from outside via the flue pipe, a quick check would be to look at the flue and you should see a pipe within a pipe.

anual check would be advised after the wall was built and the corgi guy would/should answer your question and check the ventilation

yes you are correct. There is a pipe within a pipe when I looked at the end of the flue.

AIUI, the Suprima is a fanned flue boiler and doesn't require ventilation for combustion air. However, AIUI, it DOES require compartment ventilation for heat dissipation reasons. I suspect, but please do check, that in a large room like a garage, convective air flows within the room will achieve this heat distribution.

You should also always provide a small amount of ventilation to any room to avoid condensation and air quality issues, and also in this case to provide additional safety in case the room sealing on the boiler is defective. The standard amount of room ventilation would normally be enough for any room sealed boiler installed outside of a cupboard.

Christian.

The requirement for ventilation depends on which model of Suprima you have.

I must look up to see what the definition of a cupboard v. a room is in BS

Anyway no extra purpose ventilation is required for this boiler in a garage.