Looks a bit like what a previous owner started with our house, and we're continuing now! The original portion of our home is circa 1840 as well. We have a whole-house forced-air system on a thermostat set to 58, but prefer to primarily heat with wood. We have two woodstoves - one in the central living room, one in the annex (a converted attached garage). Ignoring the annex, our home would only be about 1400sq ft, mostly 1 floor, with one 400sq ft room upstairs.
We light the main woodstove every morning when we wake, tend to it all day (we work from home) until we go to bed around 10. Keeping bedroom doors open, this keeps every room at least 65 throughout the day, with the central living room even warmer. In the winter (upstate New York, 20 degree days for a few months) our furnace consistently kicks on around 1 or 2am. We keep a few bedroom doors closed at night (teen kiddo wants his door closed, as do we, so he doesn't wake us or baby in our room up) and if we didn't have the furnace going those rooms would be in the low 50's in the morning. Our attic was recently re-insulated, and we know we have a bit more work to do on insulating crawlspaces under the various additions that were made throughout the years, but we are SUPER grateful we have the forced air system.