I went and wrote the company regarding a specific BTU value of their beeswax. I was hoping they might have some of this info from possibly some tests but I doubted it. I should mentioned I checked at length the internet to try to find any type of BTU value for beeswax of any sort and could not find any. It makes sense to me theirs should be pretty consistent (if not more potent by using pure cappings wax versus standard wax). It's higher grade and more expensive at least.
I am not sure if it's filtered at all.
Anyways here are some excerpts from said email:
"I'm not sure I can answer your question with detailed facts on the BTU rating of beeswax. I can tell you however, that beeswax has a melting point of about 45-60?C and using our plant fiber wicks, temperatures can reach 85?C."
"Our original (1 wick) can, can boil a cup of water in about 15 minutes, providing the container being used is a camping style pot (thin light aluminum) with a lid, and no draft is upsetting the flame. Our larger Omega can has four wicks and can boil a quart of water in about 15 minutes, providing the same conditions are met as mentioned above. There are all approximate figures and I cannot offer a guarantee on them, but I have been
burning these cans myself for over 20 years and can personally vouch for the cooking properties of our survival cans."
There's more where he points towards some items I had already found on the internet that didn't quite answer a specific BTU/LB rating.
I was very impressed by the straightforward and fast answer I received; I've done alot of customer service (through email many times) and this is exactly the type of correspondence I like to receive.
Now using these figures I'm going to attempt to approximate the values of their 1 wick candle; the only real factor I do not have is an ambient temperature (which admittedly is quite important). However, assuming 60 degrees should be relatively accurate and at least give us an IDEA of the BTU output. Any engineers want to give this a whack? It's been a long time since I've taken high school chem class
Or better yet, someone buy a small 1 can candle, measure it's mass, do the test for thermal energy output and get the actual BTU/lb rating. This way we can see how much radiant heat these things can put off.
Further I found this:
www.heatstick.com - an interesting (albeit backwoods) method of creating a small grade heat radiator for candles using terra cotta plant pots. While it's cheap in construction the guy has a good price (comparable to the cost of DIY) and the mechanics on it seem pretty sound.
The two combined may make an interesting "emergency heater" (high btu output, non toxic candle + candle radiator)