[Stoves] The galvanized matal story!

[Lanny Henson]

I would not worry about using some galvanized materials in a stoves 
construction, the risk is way over blown in my opinion. If you use 
galvanized metal for an outer shell you should be OK and if you use 
galvanized material for a burner it will burn off the first time you use it.

Zinc fumes are easy to avoid since they have a distinct smell.

You do not want to use galvanize in direct contact with food though, because 
you will get a nasty metallic taste.

When lead was used to make large spangles there was a risk since lead stays 
in your system.

Zinc oxide is used in everything from foot powder to deodorant and 
multivitamins.

I have had "welders flue" and it is no fun.

I am hypersensitive to welding fumes of any kind, even from stainless so I 
have learned to avoid them by using proper ventilation.

I am also hypersensitive to CO, one whiff and I have a headache. I don't 
need a stinking meter, My head is a CO detector!

Lanny

----- Original Message ----- 
From: "Crispin Pemberton-Pigott" <crispinpigott at gmail.com>
To: "'Discussion of biomass cooking stoves'" <stoves at listserv.repp.org>
Sent: Wednesday, May 28, 2008 10:27 AM
Subject: [Stoves] The galvanized matal story!


> Dear Friends of Alcohol Burners
>
>
>
> Prof Philip Lloyd sent this to me and I think it makes a worthwhile read 
> if
> you are into making really small ethanol stoves.
>
>
>
> http://en.wikipedia.org/wiki/Beverage_can_stove
>
>
>
> There is also a reference at the bottom the not using galvanised metal for 
> a
> stove as 'the zinc will release toxic fumes when heated' though it does 
> not
> state what type of fumes.
>
>
>
> I think this is an American folk tale that dates back to the time when
> cyanide was used in the zinc plating process, something that has not been
> around for decades.
>
>
>
> If someone has more concrete info on the subject, please divulge it as it
> has been an issue in standard setting for stoves in South Africa.
>
>
>
> Regards
>
> Crispin
>
>
>
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