We bought a marley 2545 baseboard iwe connecting adopuble pole thermostat to it on the left endheater has 2 black wires the theromstat has a red and black wire and groung heater says you can wire to either end but the right end has a black and red wire how do I do this we are only wiring on heaterit is a 240 v

Help

Follow the directions here.

http://www.berkomeh.com/develop/prod_pdf/2500wiring.pdf

You may need a electrician to run additional circuits.