Various manufacturers make electric fan wall heaters for bathrooms.

However, I am trying to find a manufacturer that does a heater that
can be hidden in the loft space about the bathroom.

I imagined that someone might manufacture an electric fan bathroom
heater that came with a piece of ducting tube, so that the warm air
could be fed through a grill in the roof of the bathroom.

I have tried looking around on google. However, most places only seem
to stock the traditional style wall mounted fans.

Any ideas?

Thanks,
Graham