Moderator Post (s) for this thread: >Who makes itbydoug seibert on 01/18/2005
You NEVER-EVER "Switch" a NEUTRAL.......
......So if the OLD switch was switching both lines then you don't have a 120 volt appliance.........Like everyone has assumed so far.......The wiring diagrams described so far are for a 120 volt heater........and sound correct for that application......
Please.....POST the brand and model of the unit and the voltage data from the unit..........