vikasintl

On right side there are not supply wires in my case...

so...one element wire and one wire from heater wireway...only two wires....right now they both are connected with wirenut....

so if I want to install double pole thermostat on right side..I connected 2 red thermostat wires to heater element wire and 2 black wires to that other wire coming from wireway? and ground wire of thermostat to that small green heater ground wire ?

nealtw

So now you have a single pole, and the heater has live power all the time. why didn't you wire to the other end where you have 4 wires.