Shweet, you're getting it dialed in, no doubt. Following this thread from your first understandably pessimistic post to the most recent upbeat post has been an odyssey to follow. It helps me appreciate that I'm not the only person who has struggled with a house or stove project, but ultimately finding a way to make it work brings allot of personal reward and satisfaction. Good on you for that. !
Blowing the cold air from the far end of the house, as St Earl suggested, has been the ticket for our farmhouse. Our bedroom is on the cold and windswept Northeast side, where our worst storms blow from, with poor air flow from the dining room where the pellet stove is, which is blowing the heat away from that end of the house. Just outside the bedroom door is a hallway leading to a cathedral staircase to the upstairs bedrooms that acts as a natural downdraft from the 2nd floor. So putting a small floor fan outside our bedroom door blowing towards the pellet stove room convects a warm air 'loop' both upstairs and into our bedroom and bathroom - a 2 fer for sure ! Putting a 2nd floor fan upstairs helping blow the cold air down the steps would no doubt help even more on the coldest days. Now if I can only get the wife to keep the fan on, who I believe only equates fans to cooling use in the summer vs heating use in the winter!
The ceiling is only 7' in our bedroom, so the ceiling fan blowing either up or down just seems to churn up the air in that room vs having the floor fan just outside the door on low speed gently blowing the cold heavier floor air out, and allowing the warmer air to flow in over it. Like you noticed as well, I can put my hand up and feel the warm air moving into that otherwise very cold end of the house. What a concept convection is !
What are you using for temperature measurement? I'm thinking about picking up one of the infrared laser sighted thermometers off of Amazon. There are several brands on sale for around $45, and it would be handy to use to measure wall temps as well as stove temps to better assess the heat output following several stove modifications I learned about on this forum to get better efficiency from my Quad Castile.
That will be a project for you for another day, if you want to follow B-mod and tjnamtiw's capable lead on how to tweak a Quad for maximum heat output and burn efficiency. One project at a time, though......
Keep us posted on how the insulation project is going - you should see a huge improvement in heat retention. Are you going for R-20 in the ceiling?