Cob: Cob Homes in Canada?

[Chandra Glick]

Here is an important source of my information on masonry stoves. They call 
them masonry heaters. I have heard of this specific beast many times before 
and it has NEVER been called "kuznetov" or Russian" in any of my sources. 
Besides these specific beasts are ALWAYS massive, never small.
http://mha-net.org/

I will grant Darel that TECHNICALLY any stove made of earthen or stone 
material is masonry.... However, I will also point out that whenever my 
sources refer to a "masonry stove" they are referring to the above mentioned 
beast specifically.
   -Chandra

---Original Message Follows----
From: "D.J. Henman" <henman at it.to-be.co.jp>
To: Chandra Glick <moonchild1970 at hotmail.com>
CC: Coblist <coblist at deatech.com>
Subject: Re: Cob: Cob Homes in Canada?
Date: Mon, 11 Aug 2003 12:23:54 +0900

Chandra,
   it is not surprising that you are confused about the meaning of what a 
masonry stove is.  The reason is that many masons tend to ignore or don't 
have accurate descriptions and simply say masonry, mainly to promote their 
trade and say its s simply a stove made out of masonry and can contain soil 
and cementitious mortars.  Russian stoves use thermal design principals to 
derive thermal benefits in a masonry stove, reportedly invented and 
initially designed in Russian by a Mr. Podgorodnikov.  So correctly, a 
masonry stove is simply any kind of stove made out of masonry.   A cob stove 
with or without rocks, designed properly can function in the same was as a 
cement and rock or lime and rock stove.   I believe the main area to be 
concerned with, if you use metal internal cavities, would be expansion and 
contraction of contiguous materials.   A buffer might be needed of air of a 
certain material.

A masonry stove can be a simple stove with no extra heat flow paths other 
than straight up the chimney.   The type of masonry stove Chandra is 
confusing with the generic term is the often more accurately referred to as 
kuznetov stoves or russian stoves, or russian fireplaces.

Additionally, the cob long chairs heated with a fire perform the same 
function in the same way as the stoves you are referring to, of course at a 
lower temperature and much, much less fuel required.  The principle is the 
same.   It could be designed and made as elaborate as you want, even with 
spiraling upward cavities.

here is some reference materials for you:

2.) "Kuznetsov has improved Russian heating stoves developed by I.S. 
Podgorodnikov, invented a number of Russian heating stoves of "double-deck 
hood" type, and integrated fireplace with stove. Russian heating stoves RTIK 
are very small in size but very efficient. They are heated over all their 
volume and, with only one daily heating, may be used for cooking day and 
night through."
   http://www.stove.ru/rtike.htm                     this site has some nice 
drawings.


3.)  From the below site whe have:
  "Using "system of free movement of gases" as a basis, Podgorodnikov I.S. 
designed series of stoves called "Teplushka" as well as a number of heating 
and heating/cooking "double bell" stoves. Stoves of his design were widely 
built in Russia, and earned a good reputation. The Podgorodnikov's 
"Teplushka" stove is still considered the best heating/cooking stove, even 
though most of these stoves are still built with imperfect, not airtight 
bakeoven doors."

http://mha-net.org/docs/v8n2/kuznetsov/freegasprinciple.doc

Hope this helps clear things up for you.   If I've missed something let me 
know.

Cheers,
   Darel
--------------------


Chandra Glick wrote:

>Darel, I'm not sure you know that a MASONRY stove is. It is a very 
>particular structure designed to burn hot and fast and hold the heat from 
>the fire for hours after the fire has gone out, slowly dispersing the heat 
>to the room. While earthen stoves have been made for ages, few of them are 
>actually masonry stoves. A kiva stove is not the same thing.
>   -Chandra
>
>
>----Original Message Follows----
><massive snip>
> > If you do this, you may want to look into getting a masonry stove
> > (also theoretically could be made from cob).
>
>Not theoretical. Ovens and fireplaces (forgot the Indian name for them)
>have been made for ages. Some people have also made heated cob benches.
>
>Darel
>
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