What is true about the types of gas appliances allowed in healthcare facilities?

In healthcare facilities, room heaters are generally prohibited due to safety concerns. This restriction helps minimize the risk of fire hazards in environments where patient safety is paramount and where the presence of flammable materials is common. Additionally, room heaters can potentially raise the temperature to unsafe levels, which may interfere with medical equipment or complicate patient care.

It's important to acknowledge that healthcare settings maintain strict regulatory standards to ensure both patient and staff safety, including the types of equipment and appliances that can be installed. These regulations often mandate the use of appliances that ensure proper ventilation and minimize any potential risks associated with gas use.

The other choices indicate a broader allowance or incorrect specifications regarding appliance operation in healthcare settings. Specifically, not all types of gas appliances are permitted; some may pose undue risks if not appropriately managed. Furthermore, the use of natural gas is not a requirement for all appliances, as some facilities may utilize propane or other energy sources. The statement regarding only vented appliances being allowed doesn’t fully capture the regulations in place since certain non-vented appliances may also be permitted under specific circumstances, provided they meet safety codes.