Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines
The Regular Stuff: Chat, Buy, Sell, Off Topic, etc. => General Discussion - Model & Toy Steam Engines – Stirling Cycle – Flame Lickers – Small Antique Originals => Topic started by: Jim on May 24, 2021, 11:20:07 pm
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If your pockets get to heavy with coin, this may help!
Company is called Warpfive and there highest airflow stove fan is called Twinspeed. It's a 2 cyl Stirling that puts out Over 442 CFM! (Tempature depending) all that wind in your hair does come at a price, just under $500 and Copper fan blade upgrade will put you North of $500
Notable feature is the high temp glass dome dust cover, looks nice and protect engine from dust, the company claims to have a unit running for 21 years (still going) with no failure.
They do have table fans as well. I will see if I can post a link
https://warpfivefans.com/stove-fans-stirling-engines/
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Never seen that one before... I do have the Vulcan Stove Fan from Kontax Stirling here, but it’s waiting on a wood stove to be installed some day when I can afford it... not sure where all my spare money keeps going... 😂
None of us have ANY idea either Nick????? Do you have a big hole in your pocket where it falls through???
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Never seen that one before... I do have the Vulcan Stove Fan from Kontax Stirling here, but it’s waiting on a wood stove to be installed some day when I can afford it... not sure where all my spare money keeps going... 😂
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Cheers guys looking forward to receiving this and seeing how well it works.
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Though I can’t find it right now, I recently saw a comparison video of these type solid state generator fans. The reviewer measured CFM airflow output. The five or so fans he measured were all in the 90-120 cfm neighborhood. If that helps.
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Hello Jim, these type fans used to be a bit pricey but as China became involved, the price is now quite good. I purchased a china made unit 2 years ago, and was a bit concerned, but after 2 Michigan winters of hard burning it has held up well.
The one you ordered looks a bit larger than mine, and that is good. Mine does not move a great deal of air BUT you can feel the difference! The constant air flow mixes the air so the rest of the house feels warmer rather than have to go stand by the woodburner to get warm.
Mine fan did come with a rather clever safety device, in the base is a long thin bi-metal strip, if you have a Really hot fire going, the bi-metal will curve and slightly lift one side of the base off the stove so the unit does not overheat.....its a pretty hot temp but I can hit it on a cold day.
My fan blades are not real efficient, I have often thought of putting a model aircraft prop on mine but as those are plastic or wood, it would not take the heat.
Thought I would snap a photo of mine($41 on amazon) but yours looks better.
Sorry about all the dust, it does look better right after I clean it 8)
Side note: there are 2 other odd things on my woodburner! The cast iron pot has a hunting dog on a grassy hill with campfire, it is a humidity steamer, you add water and the campfire "smokes"
The brass thing I picked up at a cuckoo clock store, it is a candle spinner. After powering it (1) time, it made such a wax/soot mess...I cleaned and put on the woodburner....the angels fly in a circle and the little brass hanging rods Hit 2 bells and it makes a soft tinkling sound....I have learned to judge when the woodburner needs fuel by the speed of the angels and fan!
Hope you enjoy your new stove fan!
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Peltier Junctions or Modules have been around for a while now, and have been extensively used in industry, but I don't recall seeing this direct of a consumer application available before. I think it's a great idea, and hope to see more extensive use and availability. This same concept was covered well over much of the last 200 years by the Stirling Cycle stove top fans from years past. I'd guess the efficiency of the two different approaches are both about the same .... which is to say quite low, but when the heat is essentially free (waste) why not use it at any level of efficiency, as no use is Zero efficiency!
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Ended up buying a 6 bladed one -
https://www.ebay.com.au/itm/324624791343?var=513657262478
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Thanks I'vejust ordered just ordered one for our wood fire, should be here in a week.
I've never heard of this technology before, so appreciate the info.
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Yes, that one doesn´t have anything but a motor and a Seebeck generator....which actually is quite impressive on its own.
Just restored my own stove fan here, as the thermoelectric generator was fried, and for no more than a few bucks it´s ready for another 5 years on top of the wood stove.
Here´s a movie explaining the science, the first part alone very neatly displays how the one you show here works:
https://www.youtube.com/watch?v=LX2cU27kUUc
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Best I can see from the picture, you’ve got one of those with a heat activated solid state generator that powers the electric fan. It’s along the same idea as a piezo ignition, where heat (instead of pressure) generates electricity.
The stirling type is completely non electric, (and I just happen to have one on its way from China) has a bit of mechanical kit that looks a little like the guts of an internal combustion engine. It’s got pistons snd cylinders etc, and works off temperature differential. There will be a crankshaft and whirling clattery bits.
https://www.enginediy.com/products/thermal-power-stove-fan-vintage-stirling-engine-physics-science-experiment-energy-education-tool
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5 Blade Self-Powered Wood Stove Top Burner Fireplace Fan
Does anyone know how these work? Are they Stirling Engines?
https://www.ebay.com.au/itm/402826808370?_trkparms=ispr%3D1&hash=item5dca594c32:g:fa0AAOSwq4lgk1V2&amdata=enc%3AAQAFAAACgBaobrjLl8XobRIiIML1V4Imu%252Fn%252BzU5L90Z278x5ickkTboA95HSvGa1O5UmCCGJLruO7JcaUvejjSdk7om77MYMGdAD2QAlHaDibTmfPUfN4YyXGyfOZIjzQb6lay70V2sa%252BnZf8iEj7gA67hP6awRemw5XUdEtqhn2ofHdpclt7g7EZfS%252BMt1KSQdH%252FSA5jKf%252BjY1T7eufj%252FmhEQBUJd2UGqG9e2hBYibOQjkR6hCcLky3QW2%252FjV3ozrg%252FI%252BrNcmvXhuIwRpzO7Nz6z%252BLEGIMDqjjAowzPKTBYN1QRATSS3BIib2SYyT4%252BpMqaEGSM5ttEA5EhKF%252F1tbitcHnJ4bjHbBXZO3C4ez2oFqVZH8a8VMO2tYJmyG%252Bjvl4c9T8bkLgdOG3OS8%252BPFIJqOJZ90YU3sYLo%252FyWe06vlFJxfyx%252Bnenh8PJmkjjPMKSx5beYryMtmsYAyQKlBA0s5EEYs3Fy46gZxGrmMUN%252FZ2VsPsE4TXyGnXlUrQdCekj16YOE7APZktGhG83B8EfFnN4B57MN9HMAledw1UnzA2rT8DaVdkYKHb32WdwYYCrKkCiXgQ59jA4DsOiKnrDX9H%252BFaG5vn3DnbWuLz47h4azxMvJN4JQpEhkGjQhtfQCL0PhGdZtgg3CocNM14sZMvr5MaMc62mWPBiXw1yDipm7vHHQP6u3cOkvP%252FQ0oXoEgs4O0OG5%252B7eNhm9s%252BubBzdQrmMIZPpMvSBgDriZsKKV%252BED%252F1rDWt7XiSxucAMNIkP5tEBdMJyeVclTzNK7Ht6fXeZ0E1FMn2n7EuDTi%252B8L0M3jPDActBGkV1PxP6ZNHDRwAsUG8yWuqV9qJ4Qcc4SDCQK7SyM%253D%7Ccksum%3A4028268083700e50b4e2263c4f8782d4c49521498882%7Campid%3APL_CLK%7Cclp%3A2334524
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