If it's enough, then an oil lamp or two or more. Could be used for
heat when the power is off, or the propane tank is empty.
A few votive candles will keep you from freezing to death.

I had a friend who lived in the woods for a while. On a cold night he
would light a few candles.

CY: Well, candles do have flame, and do put out "a little" heat.
Another writer says maybe 50 BTU per hour.


I just checked Vermont oil lamps, and they claim thair 1/2" wick
lamps
consume roughly 1/2 ounce per hour - so a 1" wick should burn an
ounce
an hour. Either my numbers for a candle are off or the heat value of
wax is a lot higher than kero - which is POSSIBLE, but liquid
parrafin
puts out less LIGHT than kero in a wick lamp, so?????


I think, perhaps, one too many conversions in the calculations
somewhere. Ed's figure looks about right. In the neighborhood of 1000
BTUs/Hr for a standard oil lamp. Perhaps a bit less.

CY: I ran some numbers, and 1,000 BTU per ounce is more or less
correct.

It may not be worth cleaning up the smoke and smudge.

CY: Yes, candles do put out a lot of soot. I would only use candles
for emergency heat. And then as a last resort.