No smoke. No mess. No tools to assemble.

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Portable enough to take anywhere on your land.

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One burn improves your soil for decades.

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No smoke. No mess. No tools to assemble. / Portable enough to take anywhere on your land. / One burn improves your soil for decades. /

A biochar kiln in use with a clean flame outdoors with trees and a pile of wood in the background.

Flamewise Biochar Kilns

for You, And you, And you.

— landowners, communities, orchardists, arborists, viticulturists, gardeners, fuels reduction crews —

This all started because I wanted a biochar kiln I could operate myself, could collapse for storage, and didn’t need any tools to assemble.

FlameWise kilns are tools to make fuels reduction activities easier to complete, at a scale you can do yourself, with low to no smoke and a contained flame.

AND, they’re a great way to make high quality biochar, which has more beneficial uses than can fit on this page.

Portable biochar kilns, made in the USA.

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Two sizes — campfire scale to burn pile scale.

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Collapse it flat. Load it up. Burn clean.

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Portable biochar kilns, made in the USA. / Two sizes — campfire scale to burn pile scale. / Collapse it flat. Load it up. Burn clean. /

FlameWise Kiln Sizes

  • Person in outdoor gear standing next to a small controlled fire in a biochar kiln the size of a fire pit, with a forested hillside and blue sky in the background.

    Campfire Size

    This 6 panel kiln is 3’ wide by 2’ tall - the same size as most fire pit regulations for residential campfires.

    A full campfire size kiln can make about ½ a cubic yard of biochar.

  • Person wearing a cowboy hat and plaid jacket tending to the flame of a biochar kiln filled with branches outdoors. A red fire truck is parked in the background, along with another person standing under a white canopy tent.

    Burn Pile Size

    This 6 panel kiln is 4’ wide by 2½‘ tall - a width often used for silvicultural debris burns.

    A full burn pile size kiln can make about 1 cubic yard of biochar.

Enquire or Order

Your land. Your burn. Do it right.

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Low smoke burns that improve your soil.

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Kilns that one person can set up and run alone.

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Your land. Your burn. Do it right. / Low smoke burns that improve your soil. / Kilns that one person can set up and run alone. /

Look Ma, no tools!

Assembling - and disassembling - FlameWise biochar kilns couldn’t be easier. There are no tools, fasteners, or moving parts.

The six interior panels and six heat shield panels can go together in about 2-3 minutes, or, if you’re explaining all the features - like in this video - about 7 minutes.

Watch to get insights into unique features and tips to get the most out your FlameWise biochar kiln.

Request pricing
A woman wearing a beige hat, blue jacket, and gloves tending the flame of a biochar kiln with logs outdoors under a blue sky with clouds, with a young man in sunglasses and a plaid shirt in the background.
A controlled outdoor burn in a biochar kiln made of steel metal, with fire and flames, surrounded by wood piles and a truck with firefighting equipment in a forested area.
A biochar kiln near the end of a burn, right before quenching, where the char has a bit of ash on top, with small flames burning on one side, outdoors on dirt ground surrounded by tree debris.
Person using a hose to quench the biochar, emitting steam, outdoors with cloudy skies.
Close-up of fresh biochar pieces with a textured, cracked surface.
A biochar kiln filled with fresh charred wood or charcoal on an outdoor ground surface.
Two hands holding chunks of fresh black biochar.
A woman with glasses and a hat standing outdoors next to an open car trunk filled with metal tools and biochar equipment, holding a power tool in her right hand, with an RV in the background and a paper bag on the ground.
A scenic mountain trail with autumn trees in red and yellow, tall green pine trees on the hillside, and a blue sky with scattered clouds.

About Flamewise

As someone with 20 acres of forest land in the dry, sub-alpine climate of the Eastern Cascade foothills in Washington State, I started looking into biochar as a smart solution for processing limbs and brush from forest health and wildfire resilience projects while stewarding our land.

I was drawn to the simple, low-smoke approach that contained the fire, and intrigued by how this process could result in a bonus soil amendment that would improve the water retention of our increasingly drought-stricken area.

One thing led to another, and soon I was working with and supporting community groups who were using forestry-scale flame cap kilns - such as the Ring of Fire Kiln - an amazing tool that I’m a huge advocate for.

However, I wanted something that I could use when I was processing material by myself that was smaller (“me-sized”), had no fasteners/nuts/bolts, and could easily fit in the trunk of my mid-size car. I wanted a couple sizes - one that would fit the requirements of a recreational campfire (2’ high by 3’ wide), and another that would fit the rule burn size in Washington - no more than 4’ wide. I wanted these for personal use, but I also wanted them for biochar demonstrations, because if they were smaller, I could do end-to-end demonstrations in a shorter period of time.

So I made some. I used them. I tweaked them.

I started using them in biochar workshops and demonstrations and soon folks started asking me where they could get one for their use. After making a few for people, it seemed that there was enough demand to transition it from a hobby, and so FlameWise was born.

Bringing these patent pending designs to life and into use is truly a labor of love, and I’m glad you’re here on this journey with me.

- Korina Stark

FlameWise Kilns

Made with love in the USA