Can I vent a WC into a garage?

[pmcx9]

I have walled out the corner of a bedroom to create a toilet and now need to vent. Its against the garage so I can vent into the garage. As its not a bathroom or wetroom and its only to remove smell and not moisture can it just be vented like this or do I need to duct it through the garage to an external wall and ultimately to fresh air.
I have read the approved documents but cannot seem to find an answer and its now the weekend so I cant ring building control.

 

[bernardgreen]

Do you want fumes from the garage getting into the bedroom ?

Backdraft shutters will reduce but not elimiante fumes going towards the bedroom when the fan is not running.

 

[pmcx9]

ah, good point. I hadn't considered that and any back smell would annoy me. I can duct it out but will need to fireboard round it so was just trying to avoid work if possible. I can see its necessary. Thanks for quick reply

 

[AronSearle]

Warm air into cold spaces = risk of condensation.

Probabably fine if the garage is quite air leaky, but not the best idea.

 

[^woody^]

You would only need an intumescent collar where the duct pipe passes through the wall into the garage, and do not need to protect the whole length of the duct.