I've installed the 230B thermostat in my basement to control one zone of baseboard heat. The furnace is oil fired hot water and all the zones are run by zone valves. I must be missing something because the thermostat is not controlling properly.

Because I'm only using this for heat how do I hook this up properly? Also, there is a jumper in the thermostat but I'm not sure if I should leave it there or remove it.

Here is a link to the thermostst instructions.

http://www.silverbowproperties.com/instructions/honeywell-RTH230B.pdf

Thank you for your help.

Thinking you only need the 2 wire heating only instructions,, red wire to rh white wire to w, the jumper which is probably jumping from rh to rc, which isn`t needed unless you are trying to send a signal to a/c,, if you are using a 3 wire system the 3rd wire probably green should go to the g post,, for fan, hope this is of some help