[Stoves] Pedal powered fan

[Boll, Martin Dr.]

Dear Peter, Robert Taylor, Steve, Tom Miles 
And all, 

> 
> Message: 1
> Date: Sun, 17 Dec 2006 17:15:21 -0600 (CST)
> From: Peter Singfield <snkm at btl.net>
> Subject: Re: [Stoves] Pedal powered fan
> To: stoves at listserv.repp.org
> Message-ID: <3.0.32.20061217171342.00b24960 at pop.btl.net>
> Content-Type: text/plain; charset="us-ascii"
> 
> 
Peter,

> Consider a simple and so extremely economic "Bellows" -- that can be used
> for the starting up of a fire -- till the chimany draft is functioning
> well
> -- and it takes over and does the rest.

I agree and hope there will be enough chimneys to do so. Look (far)backward
to my posting -blow by draft-. A solution I would prefer much more then a
fan. And by this, I think, some of the stove difficulties were much less.
(e.g. Deom-stove like changings)But many think that a chimney takes by draft
too much heat away.
 
> The woman pulls on a string which lifts a stone (About 5 lbs) -- and opens
> the bellows -- then she releases the tension -- the weight of the stone
> gives an even blasting of air -- then she pulls on the string again.
> 
> Probably to simple -- to functional -- right??

Peter, excellent simple! ( I read already your later posting as well and
enjoy it!) I like those thinks simple but good and secure working. I thought
the same (bellows plus weight) before, but did not dare to propose when a
fan was asked.
 
(As well answer to Robert Taylor)
I think a stove run with a low tech-fan had to burn acceptable as well
without fan, but the fan had to point the i for burning or give the push to
start or to re-start.

(As well answer to Steve)
- Spring-powered fan- 
I asked this question more then a year ago. I wanted to know from a Swiss
spring-maker, weather it was possible to run a small fan (3Watt) for 15 or
20 minutes with spring energy. He denied. I did not ask for 3 or 5 minutes.
Even I did not ask for the price, but I think it is more than that of
scrab-fans from computers, though I don't think a computer-fan is as tough
as needed to work acceptable without failure.

I asked this question more then a year ago. I wanted to know from a Swiss
spring-maker, weather it was possible to run a small fan (3Watt) for 15 or
20 minutes with spring energy. He denied. I did not ask for 3 or 5 minutes.
Even I did not ask for the price, but I think it is more than that of
scrab-fans from computers.
> ------------------------------


To Tom,
Answer to:
 
> Message: 7
> Date: Sun, 17 Dec 2006 22:04:33 -0800
> From: "Tom Miles" <tmiles at trmiles.com>
> Subject: Re: [Stoves] Foot powered Bellows
> To: "'Discussion of biomass cooking stoves'"
> 	<stoves at listserv.repp.org>
> Message-ID: <20061218060410.1E5FA29562 at smtpauth.easystreet.com>
> Content-Type: text/plain;	charset="us-ascii"
> 
> A foot powered bellows that could be used to assist a natural draft stove
> for starting or boiling might be quite useful. 
Yes Tom, low-tech-blow (fan or bellows), I think is only agreeable with
stoves which work acceptable even by natural draft.


> But a TEG driven fan might be cheaper.
Think of the sensitive electrical fans. Two or more of them will not be
cheaper.

Pardon, I did cut away a lot of previous postings and have thrown together
to answer at once.

Best regards

Martin