Regarding heat . . . .
I used to live on a narrowboat - the shower/toiletroom was about 2'6"x4'x6'. No heating.
If I left a candle lantern burning in there in winter, it was cold but not icy. Without the candle lantern, the showroom had ice on the inside of the porthole. There was a mushroom vent in the roof.
So, in my experience, a candle lantern can produce useful amounts of heat in a small space.
One thing to take into consideration here is the insulation of your narrowboat is going to be a LOT more than in a backpacking tent.
In my experience a candle as a heat source in the types of tents most backpackers use is pretty much useless.
If you hold your hands over the flame you will warm your hands up, but a heat source for your body core you going to be in big trouble if you rely on a candle.
If you don't have a reliable way to strike a flame then really you should not be outdoors camping ?
Good timing that mate.
Just returned from 4 days hiking and camping.
No stove, no fires, no lighter, no matches, no fire starting kit at all.
4 days, around 60km of hiking, peak height of just over 2500m and not one naked flame between us all.
:yikes:
I think this is where the disagreements start.
This forum has many members from many countries doing many different outdoors activities.
I'm of the belief that unless you have tried many of these different activities in many of the different countries it's pointless expressing an opinion on it.
In the immortal words of U.S.U.R.A., open your mind