(ii) in high-risk accommodation, that is, a bedroom or principal habitable room (e.g., living room), where a flue serving a combustion appliance passes through these rooms.
(ii) mewn llety risg uchel, hynny yw, ystafell wely neu brif ystafell fyw lle ceir ffliw sy'n gwasanaethu offer hylosgi yn mynd drwy'r ystafelloedd hynny.