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anyone know of a product that lets me generate electricity from my wood fireplace?

 
Anonymous Coward
User ID: 1385276
United States
11/07/2012 09:52 PM
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anyone know of a product that lets me generate electricity from my wood fireplace?
It doesn't have to generate much but has to do better than just allow charging of a cell phone.

I've seen the Biolite stoves and am thinking same concept, just larger scale.

Would be nice to heat the home with wood and generate some electricity. beats a gas generator.
Anonymous Coward
User ID: 13666421
Australia
11/07/2012 09:54 PM
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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
steam engine but uses a lot of water
Anonymous Coward
User ID: 1419030
United States
11/07/2012 09:56 PM
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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
stirling engine.
Anonymous Coward
User ID: 26511418
United States
11/07/2012 09:57 PM
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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
[link to en.wikipedia.org]
flaming sword
User ID: 26297346
Australia
11/07/2012 09:58 PM
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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
would a series of turbines up the inside of the flue work?
Anonymous Coward (OP)
User ID: 1385276
United States
11/07/2012 10:01 PM
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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
would a series of turbines up the inside of the flue work?
 Quoting: flaming sword 26297346


hmm, if they were light-weight perhaps. too many moving parts though
Anonymous Coward
User ID: 19392583
United States
11/07/2012 10:04 PM
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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
damn man, a steam engine????


Tegpower.com

or google youtube thermoelectric generator
spinladen

User ID: 17862575
United States
11/07/2012 10:16 PM
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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
[link to static.fjcdn.com]

theres reports of some word burning phone chargers in the Hurican Sandy aftermath
Anonymous Coward (OP)
User ID: 1385276
United States
11/07/2012 10:22 PM
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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
damn man, a steam engine????


Tegpower.com

or google youtube thermoelectric generator
 Quoting: Anonymous Coward 19392583


[link to www.youtube.com]

this looks promising
Anonymous Coward
User ID: 27162750
United States
11/07/2012 10:23 PM
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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
Get a hamster and a hamster wheel, tie a bunch of wires and magnets to it and shit, and voila! Free electricity!

Watch out, some government official will probably confiscate it though, citing some bullshit health or fire regulation or some shit.
Anonymous Coward
User ID: 10372663
United States
11/07/2012 10:51 PM
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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
TEG = Thermal electric generator

Here's a start and if you're a DIYer look for TEG on e-bay

[link to www.tegpower.com]
Anonymous Coward
User ID: 10372663
United States
11/07/2012 10:52 PM
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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
Late to the party am I
tag067663

User ID: 12853865
Australia
11/07/2012 11:22 PM

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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
The modules used to be called "Peltier" after the Peltier–Seebeck effect. They are the same type of module that cools solid state portable fridges, water coolers, etc. If you supply power heat is moved from one side to the other, resulting in one side being cold, and the other side being hot (Peltier Effect}.

They also work in reverse (Which is what you want), i.e. when heat is applied to one side, and a heatsink is on the other side it will generate a dc voltage (Seebeck Effect).

I have made a peltier powered fan that blows warm air from the top of a wood heater....it works well.

This wiki has a fair amount of detail: [link to en.wikipedia.org]

There are heaps of pages that show details of making peltier powered fans etc, such as: [link to www.karlander.net]

The large propane powered mosquito traps, like the "Mosquito Magnet" use a peltier module to convert excess heat from the catalyst into DC to power the suction fan...that way you don't need any batteries.

Hope that is some help.

Last Edited by tag067663 on 11/07/2012 11:26 PM
"Be kinder than necessary because everyone you meet is fighting some kind of battle"
Anonymous Coward
User ID: 5549032
United States
11/07/2012 11:27 PM
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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
How about a large thermocoupling, similar to the ones found on gas water heaters
millenniumjackal

User ID: 27286974
United States
11/08/2012 12:48 AM
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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
Yes...it's called a thermistor. They use the heat difference between two ends of a piece of metal to create electron flow...i.e. electricity. I've used a thermistor array to power a light bulb from the heat of a handful of votive candles before.
You only hear about SpecOps when they go wrong.
Funney

User ID: 11648979
Czech Republic
11/08/2012 01:48 AM
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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
its called Biolite campstove:
[link to www.itaci.cz]

Last Edited by Funney on 11/08/2012 01:49 AM
ET*Dude

User ID: 25793339
Australia
11/08/2012 01:50 AM
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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
Get a hamster and a hamster wheel, tie a bunch of wires and magnets to it and shit, and voila! Free electricity!

Watch out, some government official will probably confiscate it though, citing some bullshit health or fire regulation or some shit.
 Quoting: Anonymous Coward 27162750


chuckle
They Come...Destination>Earth...Arrival>>Imminent
TrinityMountain

User ID: 27286219
Canada
11/08/2012 01:57 AM
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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
No But you can get a fan that sits on top of the box type and will spin without electricity. Move the warm air around. Circulate it.

You can produce electricity from wood waste if you have thousands of dollars and a huge area. But not for your home. Sorry.
Anonymous Coward
User ID: 26102938
Australia
11/08/2012 02:19 AM
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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
Get a hamster and a hamster wheel, tie a bunch of wires and magnets to it and shit, and voila! Free electricity!
 Quoting: Anonymous Coward 27162750


now come on, not everybody is a scientist! cut out the technical talk and explain it in everyday terms that people can understand!!!!
Biochemky

User ID: 919411
United States
11/08/2012 02:21 AM

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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
I suggest generating electricity by harnessing wind power with a windmill and storing that electricity on a battery until needed.

You could also generate electricity if you have any running water on your property (hydroelectric approach) like a river or stream and that electricity could also be stored on a battery until needed.

Lastly, it sounds like the amount of electricity you are wanting to use from an alternate source could also be provided through a couple of solar panels with any excess electricity stored on a battery.

Last Edited by Biochemky on 11/08/2012 02:22 AM
Anonymous Coward
User ID: 24866361
Taiwan
11/08/2012 02:22 AM
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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
How about a large thermocoupling, similar to the ones found on gas water heaters
 Quoting: Anonymous Coward 5549032


That is called a thermopile. They are used on old furnaces and new gas fireplaces. The simple science behind them is that you get electricity when you heat up two dissimilar metals. So, in theory.... (one I've imagined before) You could build an entire stove out of such materials and get your electricity that way.
Would it be cost effective though? Maybe not.
Could you get a bunch of thermopiles and arrange them in your wood stove and hook them up together?
Sure. Could be done.
Anonymous Coward
User ID: 27292316
New Zealand
11/08/2012 03:21 AM
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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
yeah a nice small petrol generator will fit in there
Anonymous Coward
User ID: 27162750
United States
11/08/2012 03:22 AM
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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
yeah a nice small petrol generator will fit in there
 Quoting: Anonymous Coward 27292316


Won't help when the gas stations run out of gas, all from a bit of wind and rain. Happened here in the US just now with Sandy. I had to deal with it.

Makes you wake up and realize how civilization just barely hangs on by a thread.
lightchild_uk
Waiting for IT

User ID: 27150496
United Kingdom
11/08/2012 03:31 AM

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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
Stirling engine or wood gas engine

You can't restrict the smoke or let it cool too much as it won't go up the chimney.

How much electricity do you wish to generate?

What are you going to do in the Summer?
Anonymous Coward
User ID: 7367792
Sweden
11/08/2012 03:50 AM
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Re: anyone know of a product that lets me generate electricity from my wood fireplace?
TEG is good... here is a alternative, if you want more power, with a less investment cost.

[link to www.greensteamengine.com]

Really smart and light-weight steam engine. Several HP.

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