Hazard: The baseboard heaters are labeled for 240 or 208 volt use. However, some of the heaters have an internal heater built for a maximum of 120 volts. If the heater is connected to a 240 or 208 ...

If a permanently installed electric baseboard heater has factory-installed receptacle outlets, the receptacles aren’t permitted to be connected to the heater circuits [Sec. 424.9]. Informational Note: ...