What type of room heater may be installed in a bathroom?

In bathrooms, safety and proper ventilation are essential due to the increased risk of moisture and the potential for explosive gases in confined spaces. A direct-fired heater typically involves combustion occurring directly in the heated space, which is not recommended due to safety hazards associated with gas appliances, especially in high-moisture environments.

The correct type of room heater for a bathroom would typically be a direct vent heater. Direct vent heaters are designed to draw air for combustion from outside the building while venting the combustion gases outside, which makes them safe for use in small and enclosed areas like bathrooms. This setup helps maintain the indoor air quality and reduces the risk of harmful gas accumulation, aligning with safety standards governing the installation of heating appliances in residential settings.

Natural draft, forced draft, and other types of heaters could introduce risks associated with venting or by their operational characteristics that are not suitable for a bathroom environment. Therefore, the best choice for bathroom installation, focusing on ventilation and safety, would be a direct vent heater.