Been fighting this exact battle since November. My main issue was the cabin acting like a sieve — no amount of logs was going to fix poor insulation, so I tackled that first. Thick draught excluders on the door frames and some Rockwool stuffed into any gaps around the pipe penetrations made a noticeable difference almost immediately.
For the actual heating, I switched to a combination approach rather than relying solely on the woodburner:
- Thermal mass — I've got a couple of large water containers near the stove that absorb heat during burns and release it slowly overnight
- Small 12V fan mounted low near the stove to circulate warm air more evenly (runs off the Victron system)
- Electric blanket on a timer — surprisingly cheap to run from the batteries for that pre-warm before bed
The biggest log-saving tip I'd give is burn less, burn hotter. I wasted so much wood with slow smouldering fires that just produced creosote and not much heat. Properly dried hardwood with good airflow makes a huge difference to how long a load of logs actually lasts.
What's your cabin construction like? Timber frame tends to lose heat differently to something like SIP panels. Also worth knowing — are you in a particularly exposed spot? I'm on a hillside and wind chill absolutely hammers my heat retention compared to a sheltered position.
Would be good to hear what others are trying. Anyone experimented with rocket mass heaters? I've been reading about them but haven't committed yet.