Baseboard Heaters energy efficient

Can a 240 Volt baseboard heater be hooked into a 120 Volt line?
Will the heater work? Will it damage it? Is it less energy efficient. Help! Thanks.
no,not really,no,yes … in that order … the heater is designed to work on a voltage of 240 v … if you want to use 120 volts get a heater thats designed for 120 volts
