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Candle Heater

Filed in Gadgets / Toys / Gift Ideas 10 comments

Heat a whole room

Clever – the design kind of looks uncool but still, I would like to have one.

A Northern California inventor has created a small space heater powered by a single jar candle. The device consists of a multi-core steel and ceramic radiator suspended above the candle on a steel frame. The heat of the candle is captured and concentrated in the center of the radiator assembly by an internal solid steel core. After 20-30 minutes the outer ceramic surface begins to radiate the captured thermal energy into your room or office.

We students often find ourselves in small quarters that are not efficiently heated. This compact device (a little larger than a Colemanâ„¢ lantern) can add meaningfully to our space heating requirements, especially if we are burning candles for light or ambience already (might as well get the heat too). Another bonus is that the soot associated with burning candles is captured in the interstices of the radiator and is easily brushed or vacuumed out.

 The inventor, Doyle Doss, is quick to point out that “It is only a candle.” when asked “How big a room will it heat up?” But the thermal energy of the candle does transfer through and you are able to add the heat of the candle into your room. “You are not going to heat up a mansion with this,” he goes on to say, “but it does make a significant difference in a small insulated space.”

As winter approaches students in the north are seriously searching for alternative methods of staying warm. This Kandle Heeterâ„¢ Candle Holder may be the very device we have all been looking for — a means to add just a bit more heat into our study space without driving up the gas bill. Besides, now we can have the ambience of that “miniature fireplace” we all wished we had anyway.

The Kandle Heeter™ Candle Holder is very reasonable priced at $25.95 and is available exclusively from the manufacturer at www.heatstick.com. The website is very informative with lots of pictures, testimonials, explanations, and informative mini video clips. The Kandle Heeter™ Candle Holder may very well become a standard item in every student’s “going away to school” kit, right along with hot pots, microwaves, and coffee makers – but the candle heater will be the only product that will still be working when the power goes out. We may starve, but at least we can cozy up together in front of the fire and stay a little warmer while we wait for the lights to come back on.

LINK

Advertisement: Christmas Candles at CandleBay.com

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Posted by   @   29 October 2006 10 comments
Comments
Oct 30, 2006
9:55 pm
#1 Striperguy :

This heater is absurd. Even without the flowerpot all of the heat from the candle is going into the room. The flowerpot doesn’t do a darned thing useful.

Jan 14, 2007
12:42 am
#2 db :

Well, I haven’t tried it, but I suspect the “flowerpot” provides more surface area to distribute the heat, rather than the narrow hot column of air generated by the candle alone. The web site for the candle heater makes it clear this won’t heat a whole room, but will (according to at least one user) generate significantly more heat than the candle alone.

Jun 25, 2008
10:55 pm
#3 John Locke :

There is a better version developed from the A.R.P. Anderson Shelter flower pot heater, so effective is this version that it was used post -WW II to heat MANY greenhouses in British gardens using candle power alone. You can find it in the Photos website page of the Home Front Friends Yahoo group.

John Locke.

Dec 15, 2008
12:36 pm
#4 Jenette :

These work extremely well and can keep a average sized room at a decent temp in the event of long term power outage.

They work by providing more area for the heat to radiate off of, multiplying the amount of heat a single candle generates many times over.

Dec 24, 2008
6:48 am
#5 castellan :

“These work extremely well and can keep a average sized room at a decent temp in the event of long term power outage.

They work by providing more area for the heat to radiate off of, multiplying the amount of heat a single candle generates many times over.”

That is the dumbest thing I’ve ever heard. This country is in dire need of a physics lesson. The candle can only put off so much heat. The pots cannot multiply the heat. It’s simple thermodynamics.

There is simply no way these things will heat an “average sized room.” You’d be better off buying yourself a thermal blanket at a camping store — it’s way more likely to save your life.

Feb 3, 2009
4:08 am
#6 Sue :

These things do work. The pots absorb the heat coming off the candles and releases it slowly (the same way soapstone does). The internal temp gets around 460 degrees (the iside metal mass helps absorb the temp) the external surface around 165 degrees. We use a bigger version to heat our childrens playhouse (12×12) in the winter keeps them from freezing even when temps get low. We use the 3 wicked candles in glass jars to heat the internal mass and seems to work a whole lot better at heating up the pots quicker. Don’t knock until you try it.

Dec 6, 2009
6:23 pm
#7 Big A :

Of course it doesn’t actually “multiply” the heat, and it’s not really a matter of “surface area”, it’s thermal mass and a conservative method of energy transfer. Of course they work, masonry (flower pots) has a much higher thermal mass than air! Yes, the candle puts out pretty much the same energy no matter what (though significant changes occur due to how the flame gets its oxygen), but that energy will not all go into heating air at human-body level without a manifold to distribute it correctly — and this candle heater is one such distributor! Useful heat is given off more uniformly through air via infrared (no need to heat the air), and then air is directly heated by convection but across a larger area, not the single “point” of the candle flame.

The human body puts out a certain amount of heat in cold weather, but you lose that heat (can’t use it much) if you’re standing naked in the wind. If you enclose the heat source and have it encounter the proper layers of thermal mass and insulation, the heat can be usefully cycled in a smaller space! The atmosphere at large does not need any more heat — capture and distribute.

I wouldn’t buy one of these things for $30, just make it! And burn the wick in something cheaper than candles, like oil or ethanol. Thanks for the “Anderson” pot-heater idea above, it’s true!

Feb 12, 2010
6:09 am
#8 brightico :

I’ve owned on of these for several years (The Electric one), well worth the $30.00 considering you get the candle insert and the wired (floodlight bulb) insert. (It’s going to cost you $10.00 to build one, not counting travel time and costs, and effort it will take to put one together.

To give you an idea of how the ones with floodlight bulbs work. I have one in my main living space of my apartment. It’s about a 20ft by 20ft room with about an 8 ft ceiling. First off, it only uses the amount of electricity it costs to run a 60 watt light bulb. I can run mine 24/7 and never worry about the cost. During most of this past December the average temperature in my living space was between 59f* – 61f* in the mornings without the heater. With the heater it stays around 70f* give or take a degree. To get to that temp though, you need to leave the heater on for a long time, I’m talking a few hours or more. You also need to have a well insulated room/house. I pretty much leave mine on all the time 24/7 and just open a window if it gets too hot in the room.

I’ve ordered 2 more for this year. I plan to keep one in the bedroom and two in the living space and connect them to some type of outlet thermostat. Having two in the living space will allow me to keep more doors in the apartment open without the worry of it getting too cold in my living area.

Come to think of it, I could run 5 of these heaters 24/7 and it would still cost less than running my old oil radiator heater at 700watt half power for 10 hours per day.

May 15, 2010
11:19 am
#9 Vosef Kroden :

Regarding the heat output of the candle. The heat in a candle is constant but the mechanism by whicn one feels the heat varies.

The air can be heated such that the warm air will raise your temperature. Or, as is done in many slab houses the heat can be used to heat a concrete floor slab by circulating liquid thorugh pipes enclosed in the slab. The slam then emits the heat as radiant heat.

This is why it is possible to go in less clothes even when the earth is snow covered if the sun is out. The radiant heat from the sun warms you.

An aquaintance of mine lives in such a house and is quite comfortable. As a matter of interest it is the only house I have been in where one can keep their feet warm bu removing their shoes and walking on the floor.

Radiant floor slabs are not used in the ordinary frame house with basement and are considered less desireable the usual frame house. A basement is convenient for so many thins.

I presume the devices using flower pots or other heavy heat sinks operate on the same princicle.

Jan 28, 2012
1:47 am
#10 robert :

of course they work.. who are these clowns who love to just stat lambasting things they can’t comprehend.. do a little research idiots.. shut up for five minutes and read some science books.

what heats up first is the bolt setr inside the pots.. that gets -extremely- hot in there. you need to use high temp silicone sealant to adhere the top-plate piece.

then the heat is radiated from the -bolt-, not the candle, into the flower pots.

people criticizing this did NOT EVEN READ THE INSTRUCTIONS OR VISIT THE COMPANY WEBSITE TO LEARN, they just started spewing off like spastics.

the principles are “radiant energy” and “thermal mass”.

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