I recently bought a new home that has a Napoleon GD 33NR Gas fireplace in it. This is controlled by a regular light switch (on/off -two wires, black and white). I am trying to connect a Honeywell RTH5100B Digital thermostat (millivolt capable) to it instead of the switch so that while we are in the room we can "manage" the heat.

My problem is that the install manual for the thermostat or fireplace doesn't show which post to connect the two wires for the fireplace to.

Fireplace Connection Label:

TH/TP ------> Black wire

TP

TH ---------> White wire

Thermostat Connection Label:

Rc

R

Y

O/B W

G

Any help with this is greatly appreciated.