cabin stove/sidewinder build sequence

This photo-essay documents about 2 days of experimentation that resulted in a pretty stupendous new variation on Max’s “Cabin Stove.” The overall footprint of the stove determined the firebox size, and the geometry resulted in a rectangular heat riser that took hot gasses from a vertical throat in the corner of the firebox — unconventional, but it worked amazingly well. More to come! (Ed. Note: This stove, like so many others, is merely one more in a long line of innovations and adaptations, all based on the same basic principles: burn the fuel fast, hot, & clean, and extract and store as much heat as possible prior to venting. Within this long tradition, however, valuable technical analysis and development has recently been offered by a Danish builder named Peter Vandenberg. His contribution have provided inspiration and guidance for understanding and improving the hows and whys of clean combustion. Peter offers comments at the end of the post, and is a regular contributor (along with Lasse Holmes) to an online stove forum at http://donkey32.proboards.com/.

host Max Edleson, stovers Lasse Holmes, (AK) & Kiko Denzer (OR)

We gather at fire camp in OR, hosted by Max Edleson, stovers Lasse Holmes, (AK) & Kiko Denzer (OR)

wet saw, dry covered space, bricks

shop, wet saw, dry covered space, bricks

approx. 2 parts mason's sand, 1 part clay, and a trowel or three of ash; the ash makes it buttery and easy to work -- and possibly stronger

mortar: approx. 2 parts mason’s sand, 1 part clay, and a trowel or three of ash; the ash makes it buttery and easy to work — and possibly stronger

laid up on a layer of solids, 3 bricks wide by 5 deep

bottom channels are laid up on a layer of solids, 3 bricks wide by 5 deep (classic (fibonacci) proportions!)

5" wide x 6" high, for total cross sectional surface area (CSA) of 30 sq. in.

channels are 5″ wide x 6″ high, for total cross sectional surface area (CSA) of 30 sq. in.

for maintaining flow, and should equal the CSA of the final 6" round exit flue

CSA is critical for maintaining flow, and should equal the CSA of the final 6″ round exit flue

our solids were a bit bigger than the cored bricks, which made for a nice reveal around the edge

capping layer: our solids were a bit bigger than the cored bricks, which made for a nice reveal around the edge

got laid in mortar

edge bricks got laid in mortar; cappers were dry-laid

just to be sure

measure twice: just to be sure

the mortared edge bricks provided a screed for a bed of mortar

parging, to seal the channels: the mortared edge bricks provided a screed for a bed of mortar

gasses flow in (down) at top left, turn right, then back and up at bottom left

in and out: gasses flow in (down) at top left, turn right, then back and up at bottom left

the up and down channels (vertical stacks at the end of the photo)

dry fitting the up and down channels (vertical stacks at the end of the photo)

A vertical throat/slot/nozzle in the middle of the firebox

First firebox: vertical throat/slot/nozzle in the middle of the firebox

our source for tech details: http://donkey32.proboards.com/thread/734/peterberg-batch-box-dimensions

slot size: our source for tech details: http://donkey32.proboards.com/thread/734/peterberg-batch-box-dimensions

sizing is critical to maximize turbulence and mixing of fuel and air

another view of the slot: sizing is critical to maximize turbulence and mixing of fuel and air

support a 4-brick arch, so it doesn't push the walls apart

we added extra weight temporarily to the buttresses supporting a 4-brick arch, so it doesn’t push the walls apart

lasse's quick formless technique: one person holds the bricks in place while others fill the spaces w/chips and mortar

hand made arch: lasse’s quick formless technique requires  one person holds the bricks in place while others fill the spaces w/chips and mortar

from the back of the firebox

another view, from the back of the firebox

re-cycled cast-iron plates from an old stove

setting the cooktop, which is re-cycled cast-iron plates from an old stove

20: almost there

21: it worked!

a view of where the fire comes under the cooktop

it drew OK, but wasn't 'the most inspiring firebox ever

it drew OK, but wasn’t ‘the most inspiring firebox ever

she approves!

our youngest stover approves!

drying it out on the stove top is NOT recommended practice

drying out wet paper on the stove top is NOT recommended practice

25: cooking

cooking!

 

oats, chilaquiles, yum!

breakfast menu: oats, chilaquiles, yum!

27: hot enough to cook!

a horizontal throat in the roof, at the back

Second experiment: a horizontal throat in the roof, at the back

29: ready for cooktop

ready for the cooktop

 

glass rope and mud

gasketing was a combination of glass rope and mud

Max's welding table: it warped a LOT!

We had to use Max’s welding table for a cooktop: it warped a LOT!

he says it works in his stoves (the alaska batch box)

Lasse’s full firebox method: he says it works in his stoves (the alaska batch box)

lasse said we should try the vertical slot in the corner of the firebox

third experiment: lasse wanted to try moving the vertical slot from the center to the corner of the firebox

check out that flame path!

check out that flame path!

we rebuild the stove firebox to the new design (now called the "sidewinder")

We’re sold on the new design: we rebuild the firebox in the actual stove accordingly (now called the “sidewinder”)

because we didn't have space for a square riser

we build a rectangular riser because we didn’t have space for a square one

the rectangular firebox w/corner slot may be the reason it works the way it does...

shape determines design: the rectangular firebox w/corner slot may be the reason it works the way it does…

41: final course

super sweet when what you've got fits as tho designed for your purpose

cooktop fits nice! it’s super sweet when what you’ve got fits as tho designed for your purpose

43: light it up!

to heat it up and jump start a cold wet stove

the weed burner is an emergency measure to heat up the chimney and jump start a cold wet stove

another Peterberg innovation, it directs 2dary air and maximizes turbulence

The “P-channel” is another Peterberg innovation, it directs 2dary air and maximizes turbulence

enters from the back, and gets dumped into the top of the riser at the top of the slot/throat

Secondary air enters from the back, and gets dumped into the top of the riser at the top of the slot/throat

About Kiko Denzer

I live in western Oregon with my family and run Hand Print Press with help from friends Max and Eva. We are interested in restoring the arts of living to their rightful, traditional, public role, as cultural medium – and think the web is a poor substitute, but until we can fashion something better, we try to make the most of it.

6 Responses to cabin stove/sidewinder build sequence

  1. Pingback: The Cabin Stove 2.0 - Hand Print Press

  2. Kara says:

    Hi Kiko, beautiful pictures! You may not remember me- I took a workshop from you at Cob Cottage in May 2011. Then I moved to NC, got married and had some kids, and I’m only now getting around to building us a house. This little stove would be the perfect solution for my space, and I have an experienced mason to help me with technique, but I’d really like to see plans for this improvement in addition to your very thorough photos, and any advice for reincorporating hot water. Thank you for the essential work you continue to do!

  3. Another comment, I’m sorry, I couldn’t resist after seeing the pictures.
    The secondary air is best fed in as close to the riser as possible but certainly not inside it. This seems to be a kind of general rule, I have seen it happen in three completely different designs.
    This is what I’ve found out:
    Feeding air is best in or right in front of the port where under pressure is lowest, turbulence right after that. Also turbulence before and after the air injection wasn’t any good for the quality of the burn, rather the contrary.

    regards, Peter van den Berg

    • Kiko Denzer says:

      Peter, thanks for your comment; it’s an honor! We have all gained greatly from your contributions to date. Lasse told us he’d be working with you at Wildacres this year, and I imagine by then Lasse will have refined the design further. I’m sorry I won’t be there myself to meet you, but meanwhile, greetings and gratitude from Oregon.

  4. Pingback: The Cabin Stove 2.0 | Hand Print Press

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