Its -30C (-22F) and I’ve slowly been sealing up little gaps here and there.
I had to wake up at 4 in the morning to put more wood on, thats only a 6 hour burn… But! its the challenge!
I have about 6 big rocks I keep on top of my stove, thinking that they might create more surface for transferring heat into the air. They also stay warm a while after the fire has gone out. The best use I have found for them is warming up my feet, or throwing into my bed in the morning, they warm me up!