any one try this?

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stevebo
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any one try this?

Post by stevebo » Wed Sep 19, 2012 9:49 am

I came across this the other day http://jompy.co.uk/ just wondering if anyone has tried to make one? Looks kind of interesting---and pretty easy to diy!

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zelph
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Re: any one try this?

Post by zelph » Wed Sep 19, 2012 6:02 pm

Hey, that's a cool/hot idea. It looks like an easy doityourself project. Anyone know where to get flat copper tubing like what we see in the videos of the Jompy? Let the searching begin :mrgreen:

Thanks Stevbo ;)
http://www.woodgaz-stove.com/

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zelph
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Re: any one try this?

Post by zelph » Wed Sep 19, 2012 6:23 pm

It looks like an easy doityourself project
:oops: I did a search for the tubing and change my mind on being an easy project :lol: :oops:

Forming the tubing in a small diameter as we have seen in the videos ain't going to be easy. Me thinks so ;)
http://www.woodgaz-stove.com/

stevebo
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Re: any one try this?

Post by stevebo » Thu Sep 20, 2012 6:31 am

I really like the idea behind this design---------but the main problem I see is, if its not quite warm enough after going thru the coil, you really dont have a way to run it thru again. Maybe some kind of bypass, like on a hydraulic system, where it just runs the fluid thru the system in a loop when you dont need the psi? I dont see much of a problem with tubing, its getting it to recirculate without using a pump that will be challenging! Also, I thought it was pretty cool that for every one you buy, they donate one to people living in villages in Africa! Anyway, I'll be playing around with this idea this weekend---------just another opportunity/excuse to play with fire!

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zelph
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Re: any one try this?

Post by zelph » Fri Sep 21, 2012 12:49 am

Notice how close the coils are? Tightly wound means more lineal feet to allow the water to get boiling hot making it not necessary to recirculate.

Hey Realityguy, what do the coils look like in the Expresso type coffee machines?

I have 2 natural gas fired "On demand" type water heaters hanging on the wall of my greenhouse. I salvaged them from a remodling job 4-5 years ago. I might try using one of the coils to grab heat off my living room wood burner/just for the fun of it ;) and a chance to play with fire 8-)
http://www.woodgaz-stove.com/

stevebo
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Re: any one try this?

Post by stevebo » Fri Sep 21, 2012 6:48 am

Good point about the coils Zelph! I believe on the website it says it uses aluminum tubing. Theres another system out there that uses copper. http://www.hotcampshowers.com/inc/sdetail/1915 So.....if one were to use copper tubing, would you have some of the same health concerns that you would have with using a copper pot? (remember Tinneys "copper death pot"? ) Just a thought!

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zelph
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Re: any one try this?

Post by zelph » Sat Sep 22, 2012 3:26 pm

stevebo wrote:Good point about the coils Zelph! I believe on the website it says it uses aluminum tubing. Theres another system out there that uses copper. http://www.hotcampshowers.com/inc/sdetail/1915 So.....if one were to use copper tubing, would you have some of the same health concerns that you would have with using a copper pot? (remember Tinneys "copper death pot"? ) Just a thought!
No health concerns with using copper for drinking water, just with cooking acidic foods. Copper tubing is used in our homes for water. Plastic(pvc) pipe is also common in home use for water.

I found this today:

http://www.woodgaz-stove.com/

sudden
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Re: any one try this?

Post by sudden » Thu Sep 27, 2012 1:47 pm

I did make my version of the coil heater about a year ago. It's doable but I was thinking more of a tube only solution. Something you could put in coals or above a wood fire and boil water with. It just ended up being too heavy compared to my zelph stoves/ridgeline setup.
"People are not persuaded by what we say, but rather by what they understand."

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zelph
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Re: any one try this?

Post by zelph » Thu Sep 27, 2012 10:06 pm

I suspect a good amount of time has to be spent on trial and error to get the right amount of coils, the height at which the water supply is held at. The flow rate has to be such that you don't produce a pipe full of super heated steam shooting out at you. Yikes!

some info from jompy:

Product Spec

Weighing just 605 grams and measuring 29 cm across, the Large Jompy is ideal for groups or families. It produces 1 litre of steaming hot water every 45 seconds.

At the other end of the scale the mini version is tiny it weighs just 60 grams. It can produce 330mls of hot water per minute, making it ideal for quick-stop dehydrated meals. Highly portable, it’s perfect for day-trips and excursions. RRP From £49.90 – £59.90





Technical

The Jompy is a micro-bored aluminum tube, coiled to make a flat disc. This design creates a large heat conductive surface area through which more than a litre of water travels through at any one time.

So when placed on a heat source a large surface of water is subject to intense heat. The result, cold water in at one end and boiling water, almost instantly out the other at your convenience
http://www.woodgaz-stove.com/

steamjam
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Joined: Tue Jun 05, 2012 12:25 pm

Re: any one try this?

Post by steamjam » Sun Sep 30, 2012 12:12 pm

That's an interesting product. Essentially its a water tube boiler/coffee machine.. Many steam cars used something like that.

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