I've a baseboard with built in thermostat (not wall controlled) and I would like to wire a digital, non-prog, two wire, 240v honeywell RLV3100A to control that heather. Any hint appreciated.

If it is a 240 volt thermostat you should have no problems except getting the wires from the baseboard to the thermostat. It showes you how to do it right here.

http://customer.honeywell.com/techlit/pdf/69-0000s/69-1917EF.pdf

If it is a 240 volt thermostat you should have no problems except getting the wires from the baseboard to the thermostat. It showes you how to do it right here.

http://customer.honeywell.com/techlit/pdf/69-0000s/69-1917EF.pdf
Thank you, that's what I needed, problem solved! :)