Jump to content
Strawberry Orange Banana Lime Leaf Slate Sky Blueberry Grape Watermelon Chocolate Marble
Strawberry Orange Banana Lime Leaf Slate Sky Blueberry Grape Watermelon Chocolate Marble
snaggletooth

Charging batteries via multi fuel stove

Featured Posts

Hi all, first post!

 

I've been building out an old 43 foot narrowboat from shell for the past 3 months and I'm approaching the point where I'm figuring out electrics.

Some time ago I remember reading on this forum about a unit that you sit on top of your multifuel stove but I cannot for the life of me find the post

and any google search comes up with that silly Biolite campstove.

 

Does anyone know what I'm talking about here?

Share this post


Link to post
Share on other sites
3 minutes ago, snaggletooth said:

Hi all, first post!

 

I've been building out an old 43 foot narrowboat from shell for the past 3 months and I'm approaching the point where I'm figuring out electrics.

Some time ago I remember reading on this forum about a unit that you sit on top of your multifuel stove but I cannot for the life of me find the post

and any google search comes up with that silly Biolite campstove.

 

Does anyone know what I'm talking about here?

 

Eco Fan

 

http://www.ecofan.co.uk/woodstove-ecofans.html

 

(But it won't charge your batteries)

Share this post


Link to post
Share on other sites

Thanks for speedy reply, Alan but I'm already aware of the Eco fan!

 

I don't think I expressed myself very clearly in the first post! This is a unit you sit on top of the stove that converts heat energy to electric which you can hook up your battery array.

Share this post


Link to post
Share on other sites
7 minutes ago, snaggletooth said:

Thanks for speedy reply, Alan but I'm already aware of the Eco fan!

 

I don't think I expressed myself very clearly in the first post! This is a unit you sit on top of the stove that converts heat energy to electric which you can hook up your battery array.

The only one I know of is a 5v 500ma one that is used when camping to top up your GPS, phone etc.

Share this post


Link to post
Share on other sites

Just to make it absolutely clear, I have no connection to either the manufacturer or the retailer I linked to. I only added the link as it seemed to be a valid answer to the question posed. 

Share this post


Link to post
Share on other sites
Just now, Chewbacka said:

Having read it again I can see why we all forgot about them - a simple air cooled unit will give at best 45W which is about 3.5A, which is not a lot for the money.

Ah. Yes, that doesn't seem as attractive as I initially thought.

 

But yes, that I'm pretty sure is the thing I was looking for, thank you! I was trying to suss out a charging solution in the absence of bright sunlight via my solar panel.

Share this post


Link to post
Share on other sites
9 minutes ago, Chewbacka said:

Having read it again I can see why we all forgot about them - a simple air cooled unit will give at best 45W which is about 3.5A, which is not a lot for the money.

That's got to be 1% efficiency, maybe 2%?

Share this post


Link to post
Share on other sites

There were some American water cooled units, a while a go. 

Low output, you would need 3 units, but very very expensive. 

 

Bod

Share this post


Link to post
Share on other sites
32 minutes ago, Bod said:

There were some American water cooled units, a while a go. 

Low output, you would need 3 units, but very very expensive. 

 

Bod

The most expensive one (>$700 US) on that link in post #5 states 100W, which is about 8A at 12V, but I bet you’d never see that outside a laboratory. 

 

Share this post


Link to post
Share on other sites
1 hour ago, WotEver said:

The most expensive one (>$700 US) on that link in post #5 states 100W, which is about 8A at 12V, but I bet you’d never see that outside a laboratory. 

 

The data sheet shows there needs to be a 240*C difference between the 'hot side' and the 'cold side' to achieve 100 watts.

It also has to be Glycol cooled at 3-4 gallons per minute flow rate.

 

 

 

Screenshot (1).png

Edited by Alan de Enfield

Share this post


Link to post
Share on other sites
32 minutes ago, Alan de Enfield said:

The data sheet shows there needs to be a 240*C difference between the 'hot side' and the 'cold side' to achieve 100 watts.

It also has to be Glycol cooled at 3-4 gallons per minute flow rate.

And the power to both cool and pump that glycol mixture comes from...

 

I love marketing folk ;)

Share this post


Link to post
Share on other sites
18 minutes ago, WotEver said:

And the power to both cool and pump that glycol mixture comes from...

 

I love marketing folk ;)

The thermoelectric generator puts out 100w of which 35w pumps the coolant and 60w powers a blower to cool the coolant radiator, which leaves 5w for you.🤣

  • Happy 1

Share this post


Link to post
Share on other sites

Sometimes we just need to organise ourselves so that the first and final reply is a simple "No" and then we can all move on. Expanding further with the occasional, perhaps more helpful, "That's utter bollards" may also be useful. :)

 

Share this post


Link to post
Share on other sites
1 hour ago, Sea Dog said:

Sometimes we just need to organise ourselves so that the first and final reply is a simple "No" and then we can all move on. Expanding further with the occasional, perhaps more helpful, "That's utter bollards" may also be useful. :)

But we must think outside the box apparently. ;)

 

We all know it’s a dumb idea, which is why no-one does it, but we must discuss it anyway...

Share this post


Link to post
Share on other sites
3 hours ago, Sea Dog said:

Sometimes we just need to organise ourselves so that the first and final reply is a simple "No" and then we can all move on. Expanding further with the occasional, perhaps more helpful, "That's utter bollards" may also be useful. :)

 

Is the good old, reliable, conventional word "bollocks" now banned or enforced against? I occasionally substitute Balaerics (the archipelago of Ibiza, Mallorca, Menorca and smaller islands), however it would be clearer to use bollocks as appropriate.

Share this post


Link to post
Share on other sites
57 minutes ago, Paul C said:

Is the good old, reliable, conventional word "bollocks" now banned or enforced against? I occasionally substitute Balaerics (the archipelago of Ibiza, Mallorca, Menorca and smaller islands), however it would be clearer to use bollocks as appropriate.

If the speaker of the House of Commons can drive around in a car with a bumper sticker - bollocks to brexit - then it must be fine.

Share this post


Link to post
Share on other sites
3 hours ago, Paul C said:

Is the good old, reliable, conventional word "bollocks" now banned or enforced against? I occasionally substitute Balaerics (the archipelago of Ibiza, Mallorca, Menorca and smaller islands), however it would be clearer to use bollocks as appropriate.

Bolleaux!

Share this post


Link to post
Share on other sites
32 minutes ago, Sea Dog said:

Bolleaux!

Probably in 5 years from now when someone says something stupid the insult will be ‘he’s talking brexit’

  • Greenie 3

Share this post


Link to post
Share on other sites

Back to the question. Maybe someone could design a steam turbine that sits on the stove and charges the batteries. The excess steam could be condensed under a dome and provide a nice warm bath full of water. 😁

Edited by stegra
  • Greenie 1

Share this post


Link to post
Share on other sites

Just get a really efficient wind generator and put it in front of the ecofan.

 

................Dave

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.