Candle Heater

By , November 23, 2007 11:22 am

Candle Heater or the way he (miss)spells it, KandleHeeter. Cute but really…

Not sure about these inventions. I remember the heat stick from way back when, but it was another one of the neat ideas but just not sure it was worth the time, energy expended, space taken up in the room type devices.

Gonna have to get some flower pots and make one of the Kandleheeters just to see if there is more heat given off by this device than just the candle alone. There are laws about this stuff if I remember my physics right but it may be that some of the radiant energy is converted to heat via the ceramic pots and metal screw, washers, nuts combo. Time and experimentation will tell.

The greenhouse is interesting. Kinda reminds me of one I built back in the early 80’s that was just too small to be of much use but the one I built was a standup inside unit with an isle in the middle whereas his you raise the wall to work with the plants.

2 Responses to “Candle Heater”

  1. Steve says:

    OK, looks like a step up from the “candle in a can” trick we used around here (pretty successfully, too) during the blizzard of ’93. Also looks like a steel rod (threaded?) of some sort, with nuts and washers as spacers/heat sinks/radiant area enhancers. Methinks a quick trip to the local Ace hardware store would net you enough materials for $30 to build a few of these–a trip to trade day, even more. Cool idea though (no pun intended). Might have to nip off with a trio of the wife’s flower pots, dig up some threaded rod/hardware and give this a try–outside, on the carport or other non-flammable area, until I see well it works–or if it works TOO well…saw the picture of the “pillar” candle that absorbed a little too much of its own reflected heat..

  2. Steve says:

    OK, NOW I read your comments. I think that what is happening here is two-fold. No, there is not MORE energy being given off by the candle heater than by the candle, but both the radiant heat and the convected heat are being channeled by the ceramic. That is to say, the hot air rising from the candle is circulating around the flower pots, and I would think giving up the lion’s share of its heat, which is then radiated off as infrared, instead of wafting to the ceiling via convection. Also, the visible light as well as the infrared being given off by the candle is being absorbed and then re-radiated by the ceramic. Of course, the visible component is being radiated as infrared–i.e., heat. So, there APPEARS to be more energy, but there is actually just more energy in a frequency range that we perceive as heat. I bet the little SOB DOES get kinda warm, the way the guy warns…
    That’s my $0.02, anyway. I Am Not A Surfer Physicist, and I don’t claim to have a unified theory based on either some weird geometric figure, or some weird arrangement of flower pots and rapidly oxidizing paraffin…though not as rapidly as Burt Rutan and company do in Spaceship One…no, wait, they’re burning rubber, aren’t they? (In more ways than one, I suppose…) Mythbusters used paraffin and NO2, I think.

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