Honeywell manuals - I think most of these are digital though.
http://yourhome.honeywell.com/yourho...chResults.aspx

so is it the older style round kind and not digital ?

I just heat with a wood stove but I;m trying to recall my parents thermostat and how it worked.

Theirs had the red indicator for the highest temp or -stop heating at this temp approx 68-70 degrees

and the had a black indicator for the lowest temp usually 60 ish