Oil-filled room heaters are presented as a reliable winter essential in India, offering steady, long-lasting warmth through sealed oil technology. They operate quietly, support healthier indoor conditions, and provide uniform heat distribution suitable for large rooms. Key considerations for selection include heating capacity, safety features, and energy efficiency. Models like the Havells 9 Fin OFR emphasize fast heating, efficient heat retention, and user convenience with features like a PTC fan, wheels, and safety certifications such as ISI and overheat protection.