[BG] 309.1 Space-Heating Systems
Interior spaces intended for human occupancy shall be provided with active or passive space-heating systems capable of maintaining an indoor temperature of not less than 68°F (20°C) at a point 3 feet (914 mm) above floor on the design heating day. The installation of portable space heaters shall not be used to achieve compliance with this section.
- Interior spaces where the primary purpose is not associated with human comfort.
- Group F, H, S and U occupancies.