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Biochar-Making Fire Pit - (Made in USA)
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  • Biochar-Making Fire Pit - (Made in USA)
  • Infographic comparison: Conventional double-walled fire pits send convective heat straight up, leaving legs cold. Single-walled biochar pits radiate heat outward through the metal walls, keeping legs warm.
  • Drawing explaining how the biochar fire pit design creates a vortex to reburn smoke and how the design prevents air from entering the bottom of the fire pit allowing biochar to form.
  • The Biochar Fire Pit burning with a Made In USA image in upper right.
  • Image of the Biochar Firepit with notes explaining that it has: Less Smoke Than Standard Fire Pits; Folded Edges are Convenient Handles; One Piece Welded Unit; Heavy Duty 16 Gauge Construction; Can be Used to Make Biochar; Drain and Quenching Pipe for Safety and Convenience.
  • Shows how a rustic patina develops on steel if left to weather.
  • Top view of the biochar fire pit showing the inside of the biochar fire pit.
  • Back view of he Biochar Fire Pit showing the hose attachment for bottom up quenching.
  • CAD rendering of the Biochar Fire Pit showing the height, width and weight.
  • Group of friends smiling and laughing while sitting around a Biochar-Making Fire Pit by Pi Fabricators.
  • Biochar-Making Fire Pit - (Made in USA)
  • Infographic comparison: Conventional double-walled fire pits send convective heat straight up, leaving legs cold. Single-walled biochar pits radiate heat outward through the metal walls, keeping legs warm.
  • Drawing explaining how the biochar fire pit design creates a vortex to reburn smoke and how the design prevents air from entering the bottom of the fire pit allowing biochar to form.
  • The Biochar Fire Pit burning with a Made In USA image in upper right.
  • Image of the Biochar Firepit with notes explaining that it has: Less Smoke Than Standard Fire Pits; Folded Edges are Convenient Handles; One Piece Welded Unit; Heavy Duty 16 Gauge Construction; Can be Used to Make Biochar; Drain and Quenching Pipe for Safety and Convenience.
  • Shows how a rustic patina develops on steel if left to weather.
  • Top view of the biochar fire pit showing the inside of the biochar fire pit.
  • Back view of he Biochar Fire Pit showing the hose attachment for bottom up quenching.
  • CAD rendering of the Biochar Fire Pit showing the height, width and weight.
  • Group of friends smiling and laughing while sitting around a Biochar-Making Fire Pit by Pi Fabricators.
Biochar-Making Fire Pit - (Made in USA)

Biochar-Making Fire Pit - (Made in USA)
$525.00
Description

Create healthy soil and enjoy amazing backyard fires with the Biochar-Making Fire Pit!

Tired of hauling valuable garden waste to the green bin? Frustrated with expensive soil amendments that don't last? The Biochar-Making Fire Pit lets you transform your garden waste into biochar – a powerful soil enhancer that improves your garden's health and fertility for years to come!

What makes our Biochar-Making Fire Pit special?

  • Makes Biochar: Turn your yard waste into a natural soil amendment, saving you money and reducing your carbon footprint.
  • Fun and Easy to Use: Simply start a fire, add wood as it burns down, and quench with the specially design bottom up quenching pipe. Detailed instructions included.
  • Design: Intended to be a functional work of art for your garden. The design helps you efficiently produce biochar while reducing smoke emissions. 
  • Enhanced Social Life: Create memorable fireside gatherings with friends and family. Enjoy the relaxing ambiance of a backyard fire.
  • Eco-Friendly: Biochar is a stable form of carbon that lasts for thousands of years, enriching your soil and sequestering carbon.
  • Made in the USA: High-quality 16 gauge steel construction you can trust.
  • No Assembly Required!

Benefits of Biochar:

  • Increased nutrient retention in your soil.
  • Reduced soil acidity.
  • Improved moisture retention, leading to less stressed plants.

Mild Steel Construction:

The natural plain steel construction of the Biochar-Making Fire Pit will change to a rustic patina color as the steel rusts if left outside to weather.

Risk-Free Purchase:

Enjoy free shipping within the continental USA and 30 day returns.

Turn Yard Waste into Gold: The Biochar-Making Fire Pit

Are you tired of:

-- Having valuable organic matter hauled away from your garden in your green bin?

-- Only getting ash out of your fire pit that contributes little to your garden?

-- Paying for soil amendments that don't last?

 Click here to learn how biochar makes your garden thrive
Pi Fabricators biochar kiln, Made in USA, with labeled features, including heavy-duty 16 gauge construction, folded handles, and a drain/quenching pipe.

Made for your garden

Imagine sitting around a firepit enjoying its warmth while also making a valuable soil amendment that will enrich your garden. Plus it will save you money on fertilizer and is also good for the environment.

Make Biochar

Make your own DIY biochar in your backyard with your backyard green "waste".

Have Fun

Enhance your social life with fire pit gatherings or simply enjoy the calming effect of sitting next to a fire.

Lower your Carbon Footprint

Biochar is a stable form of carbon that can last for thousands of years in soil.
New to Biochar? Get the Guide.
Pi Fabricators biochar kiln, Made in USA, pictured filled with small twigs (tinder) and ready to be lit for operation.

Start the fire

Like any fire pit you start your fire with tinder such as small twigs or newspaper and get a base burning. Add larger branches or firewood once the fire gets going.

Pi Fabricators biochar kiln, Made in USA, pictured filled with hot coals.

Add wood

As your fire burns you will see how it burns down with reduced flames making a char bed. Each time it settles down add a little more wood to the fire.

Pi Fabricators biochar kiln, Made in USA, shown filled with water and biochar after quenching. A hoe is being used to mix and submerge the floating hot coals into the water.

Quench

Start reducing the diameter (thickness) of wood you add one hour prior to finishing your burn. Finally quench your fire with the attached hose filling the biochar fire pit with water from the bottom up.

How to make your own biochar!
Vibrant green cabbage growing in a garden, with sparkling drops of water clinging to the leaves.

Biochar improves your garden's soil

  • Biochar increases your soils ability to hold nutrients so more of your valuable fertilizer stays in your soil helping your garden to grow.
  • Biochar decreases soil acidity increasing the vitality of your garden.
  • Biochar increases your soils ability to hold moisture so your plants get less stressed between waterings. 

Don't just take our word for it

Sustainable biochar is a powerfully simple tool that can produce a soil enhancer that holds carbon and makes soil more fertile

 Source - International Biochar Initiative
Letter board with 'FREE SHIPPING' text on a wooden background

Free Shipping & Free Returns*

We get it. Trying something new can feel risky.

With free shipping and free returns plus a 30 day return window you can try the Biochar-Making Fire Pit risk free.

*Free shipping applies to the contiguous United States. Orders shipping to Alaska or Hawaii incur a $200 flat rate shipping fee due to carrier costs.

Stop Paying for Bagged Soil Amendments

You shouldn't have to break the bank to improve your soil. Commercial biochar is expensive, yet the raw materials in your yard are free. We designed a simple, fun way for you to turn fallen branches into premium soil fuel—right in your own backyard.
Night view of the Pi Fabricators biochar kiln, Made in USA, actively cooking hotdogs on the slotted grill, with the fire's glow visible through the grates.

The Slotted Grill

Upgrade your backyard experience. This isn't a generic grate—it's custom-fitted for the Biochar-Making Fire Pit. The artistic pattern matches the hex geometry of the Biochar-Making Fire Pit, providing a stable, beautiful surface for searing steaks and vegetables over a wood fire.
Shop the Slotted Grill
Pi Fabricators biochar kiln and hot plate grill (Made in USA) in use outdoors. Hamburgers are cooking on the grill over hot coals, with green grass surrounding the unit.

The Griddle

Unlock the full potential of wood-fired cooking. This isn't a flimsy pan—it's a heavy-duty solid steel griddle custom-fitted for the Biochar-Making Fire Pit. It transforms your pit into a flat-top stove, perfect for smash burgers, breakfast skillets, and getting a restaurant-quality sear on steaks without flare-ups.
Shop the Griddle
Group of friends smiling and laughing while sitting around a Biochar-Making Fire Pit by Pi Fabricators.

Have fun while making biochar

At Pi Fabricators we know that you want to have an awesome garden. In order to do that, you need healthy soil. The problem is buying soil amendments is costly and most don't stay in your soil very long, which leads to your garden's soil being less fertile. We believe you should be able to enrich your soil with the organic matter you grow in your garden. We understand the importance of having a garden that is both beautiful and provides nutrition for your family which is why we developed the Biochar-Making Fire Pit that can be enjoyed just like a backyard fire pit.

We stand on the shoulders of giants

Supercharge your fireside with the Biochar-Making Fire Pit! Inspired by Kon-Tiki kilns, Japanese MOKI cone kilns, and ancient soil pit kilns. The Biochar-Making Fire Pit offers a sustainable, efficient and stylish way to enjoy a backyard fire pit while producing biochar to nourish your garden.
Drawing explaining how the biochar fire pit design creates a vortex to reburn smoke and how the design prevents air from entering the bottom of the fire pit allowing biochar to form.

Reduced smoke emissions

The Biochar-Making Fire Pit decreases the amount of smoke produced compared to a conventional fire pit* because the Biochar-Making Fire Pit's shape promotes efficient mixing of air that helps to reburn the smoke.

*While the Biochar Fire Pit burns significantly cleaner than a standard fire ring, it intentionally avoids the hyper-aggressive airflow of double-walled smokeless pits. This controlled airflow ensures a clean burn without completely incinerating the wood to ash, allowing you to preserve the biochar.
Infographic comparison: Conventional double-walled fire pits send convective heat straight up, leaving legs cold. Single-walled biochar pits radiate heat outward through the metal walls, keeping legs warm.

Designed for Warmth. The Difference:

Competitors (Double-Walled): Double walls found in smokeless fire pits act as insulation traping heat and funneling it upward. Heating the sky instead of your toes.

The Biochar-Making Fire Pit (Single-Walled): Conductive steel walls radiate heat outward instantly.

The Result: You stay warm from head to toe, with minimal smoke.

Order your Biochar-Making Fire Pit toady
Close-up of a laptop with a checkout screen on a wooden surface

1. Click "ADD TO CART"

Person pushing a cart with boxes against a red brick wall

2. Check out

Pi Fabricators biochar kiln, Made in USA, showing the onset of a rustic patina, with a green garden hose attached to the quenching pipe.

3. Enjoy

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