[Stoves] ash layer beneath fire

[D M]

Hello,

We have been using 1” perlite as
insulation beneath a clay combustion chamber with very good results. Before
using the perlite we had tried ash with good results also.   We decided to try the insulation
to prevent heat loss a few years ago when designing the prototype of a Rocket
stove (the Isleña stove).  The perlite is
enclosed inside the stove body, around and below the combustion chamber.  A removable metal grate for air flow under
the fire is placed inside the clay combustion chamber. 

Best regards,

D. Mena
From: Vincent.Okello at practicalaction.or.ke
To: stoves at lists.bioenergylists.org
Date: Wed, 22 Jan 2014 10:36:01 +0000
Subject: [Stoves] ash layer beneath fire









Hi.
 
Could anyone help me out with this - would an ash layer beneath a fire in an improved cookstove (as in the sketch attached) help insulate the fire and prevent heat loss into the body of the stove? The layer would be about an inch thick
 after compression, and is about half an inch below the base of the stove.
 
Thanks,
 
Vincent Okello










Practical Action uses technology to challenge poverty, working with poor women and men around the world.www.practicalaction.org















Support our work today 








Practical Action, The Schumacher Centre, Bourton on Dunsmore, Rugby, Warwickshire, UK, CV23 9QZ

Practical Action is a charity registered in England and Wales, and a company limited by guarantee in England no. 871954

VAT Reg No. 880992476 | Reg Charity No. 247257. 
 






_______________________________________________
Stoves mailing list

to Send a Message to the list, use the email address
stoves at lists.bioenergylists.org

to UNSUBSCRIBE or Change your List Settings use the web page
http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org

for more Biomass Cooking Stoves,  News and Information see our web site:
http://stoves.bioenergylists.org/ 		 	   		  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20140122/22560d2c/attachment.html>