Has anyone had luck using a UCO candle lantern to help keep condensation down?

It will help.
We bought a refillable lamp oil insert for ours to achieve cleaner and longer burns. It work great.

Without the candle you could hang a fine cotton sheet up near the interior apex. This cloth will collect the moisture and frost up throughout the night.
Come morning, you carefully pull the cloth down and shake it off outside.

The best thing to do is have a wide open low and high vent. Lots of flow keep the moisture from settling on the tent walls.

Though we don't use any of these tricks anymore as we're in a hot tipi now.

Thanks. Interesting about the cotton sheet.
Hot Tipi eh... When my kids are older and start winter camping I’ll looking into a hot tent maybe a Snowtrekker.

Andrew F
What you really want to do is keep your sleeping bag dry. What worked for me is A: The venting of tent
B: A Walmart cheapest single bed sheet on top of sleeping bag. The weave is so open the moisture passes threw and the frost builds up on the top of sheet. I slide the sheet off in the morning. I added Velcro to sheet and bag to keep it in place. I hang my bag and sheet out on a line every morning. Not if temp above 0°C. Every other day I removed the fly from the tent. Not on real snowy days. The piece of cotton sheet hanging from ceiling works. It becomes a sheet of ice. It lowered my head room by about 7 cm. I am bald and the second morning I forgot to keep my head down I took it down. This works for me at a base camp. The people that travel everyday will have to help you with what works for them.
Stay safe
Dave

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