Katoomba Area Local NewsStrengthening community, healing Country, and restoring the health of our planet.
Turning Sawdust into Gold: How a Blue Mountains Carpenter is Heating Homes and Reducing Waste
Briquettes made from sawdust at Against The Grain (Photo: Saskia Everingham)
When Dave Spees began making timber windows and doors out of his garage in 2006, he didn’t expect sawdust to become one of his biggest problems – or his most innovative solution.
Nearly two decades later, the Katoomba-based carpenter and founder of Against the Grain has turned the by-product of his craft into a sustainable, sought-after winter fuel. His compressed sawdust briquettes are now helping to heat homes across the Blue Mountains, all while dramatically reducing landfill waste.
Key Points:
Dave Spees transformed his carpentry business’s sawdust waste problem into a sustainable heating solution by creating compressed briquettes for Blue Mountains residents.
After initial challenges with a small press, a $200,000 German Weima machine now produces high-quality briquettes using only hydraulic pressure and premium timber sawdust.
The briquettes have become a popular winter fuel staple, with up to 40 tonnes stored annually and strong demand from local residents.
From Craftsmanship to Climate-Conscious Innovation
Spees, a long-time Mountains local who grew up in Springwood, has spent his life working with timber: first as a carpenter and joiner, then as a bespoke window maker. By 2009 his window-making business had taken off, as had his production of sawdust.
“We were filling 10 to 12 industrial bins of sawdust every month,” Spears recalls. “It was becoming a serious stress. It didn’t feel right to just keep dumping it into landfill.”
That waste stream eventually led him overseas, where a trade expo in Germany opened his eyes to how European manufacturers were compressing sawdust into heating briquettes. In fact, they were using the briquettes to heat the factories. Nothing, he noticed, was going to waste.
Dave Spees (Photo: Saskia Everingham)
A Machine with Muscle
Back home, Spees invested in a small German briquette press and reworked his factory’s dust extraction system to feed it. But early versions of the briquettes – small, soft discs – weren’t quite hitting the mark.
“People liked the idea, but not the product,” he says. “They’d fall apart too easily, especially in fireplaces. We solved our dust problem, but we hadn’t cracked the briquette.”
After a few years of trial and error, Spees applied for a NSW Bin Trim grant, a government initiative aimed at managing commercial waste. The grant allowed him to purchase a high-capacity $200,000 Weima press – far more powerful and sophisticated than his first.
It was a risk, especially for a small family business. But the investment paid off.
Vacuum chutes collecting sawdust to send to the press. (Photo: Saskia Everingham)
Collected sawdust fed into the press. (Photo: Saskia Everingham)
Briquettes fresh from the press dropping into the container(Photo: Saskia Everingham)
The new press creates dense, high-performance briquettes using only hydraulic pressure – no glue, no additives. It has an 800mm diameter pipe that sucks the dust from each workbench into a huge external hopper, from which the briquettes are then compressed.
The external hopper (Photo: Saskia Everingham)
The mix includes offcuts of premium Australian hardwoods and imported timbers like rosewood, cedar and blackbutt – leftovers from Spees’ custom window and door work.
“They’re dry, clean-burning, and incredibly efficient,” he says. “People are often surprised by how much heat they generate.”
The briquettes for sale at Against The Grain’s Katoomba showroom (Photo: Saskia Everingham)
From Waste to Winter Warmth
The briquettes are now a staple for many Blue Mountains residents, especially older locals who can no longer split firewood. Spees stores up to 40 tonnes each summer in preparation for winter, when demand surges.
“We have regulars who come in with boxes to fill up,” he says. “It’s all self-serve. We don’t really advertise anymore – word’s spread.”
So much so that during especially cold or wet seasons, the briquettes have occasionally sold out. In those cases, Spees and his team keep a waiting list, prioritising vulnerable or elderly customers.
The sawdust comes from a wide range of timber sources, and balancing the composition to keep the press running smoothly remains an ongoing challenge.
“One minute we’re machining soft pine, the next it’s dense ironbark,” Spees explains. “That can jam the machine if we’re not careful. It’s taken years to get the settings right, but the support from Weima’s team in Germany has been incredible.”
Designing for the Fire
The story comes full circle in Spees’ own Leura home, which he designed around a fireplace with hydronic radiators – a nod to European efficiency.
“I always wanted to be able to heat my own home with the material we produce,” he says. “And now I can. We’re not just keeping warm, we’re closing the loop.”
The project exemplifies how sustainable thinking, paired with craftsmanship and persistence, can reshape an industry from the inside out.
From discarded sawdust to winter staple, Spees’ briquettes are more than just an alternative fuel: they’re a local blueprint for what small businesses can do when sustainability becomes part of the design.
Against the Grain also supplies boxes of kindling (Photo: Saskia Everingham)
Interested in trying the briquettes?
Against the Grain offers self-serve pickup from their factory at Unit 24-26, Megalong St, Katoomba. Supplies are limited in winter: best to bring your own box and get in early!
Thank you to everyone that joined us at the Planetary Health Centre on Saturday for the first of our Skill Share Saturdays program!
The Centre was a hive of activity all day, and we heard from @alchemyfarms_permaculture, the @ediblegardentrailbluemountains team and Andy Mann. Also thanks to Sherlie McMillan from Greater Blue Mountains Rotary for teaching the Fashion Upcycling workshop, and Virginia Field for the Tai Chi and Qigong class.
The next event will be held on Saturday 1st August - you can register your place here: https://events.humanitix.com/skill-share-saturdays-at-the-planetary-health-centre
🖐Get involved!
Do you have a skill, program or interest that promotes planetary health that you`d be willing to share with members of the local community? We are looking for more workshop and session hosts for our future events.
Join us at the Planetary Health Centre in Katoomba on the first Saturday of every month for Skill Share Saturdays!
Our July program includes: - What to grow in a Blue Mountains climate - Eating for Earth - Tai Chi and Qigong - Fashion upcycling and clothing reuse workshop - How to get involved with the Edible Garden Trail
You are also welcome to bring any surplus seeds or produce for our Crop Swap, or wind down in the Planetary Health Cafe (until 2pm).
If you have a skill that you want to share, or any questions or queries, please contact [email protected]
Visit the website to view the full program of events and register your place.
Join Andy Mann, a 23 year old Lawson local, for their Eating for Earth session 🌏
Eating for Earth is a judgement-free plant-based educational workshop that all types of eaters are encouraged to attend. There will be a presentation about the environmental impact of diets, a discussion section, and best of all, food! The food will be fully plant-based.
Andy wants to help inform our passionate community about how we can better reduce dietary environmental impact.
The session will run from 11AM - 12PM on Saturday 4th July.
Other sessions include: - What to grow in a Blue Mountains Climate - Fashion Upcycling - Tai Chi and Qigong - Bushcare on the Planetary Health site - How to get involved with the Edible Garden Trail
To register your place, visit our website: https://events.humanitix.com/skill-share-saturdays-at-the-planetary-health-centre...
We’re excited to announce the second Blue Mountains Food Security Fair, taking place in Katoomba in October 2026.
This annual event will bring together growers, thinkers, makers, and community members to explore one of the most important challenges of our time: how we grow, share, and sustain food in a changing world.
Across the weekend, we’ll be exploring themes including: - Healthy soil and regenerative systems - Food and human health - Plant-based food futures - Home and community food resilience - Water-sensitive and climate-adapted growing - Indigenous food knowledge and systems - School food systems - Australia’s food procurement - Global food security challenges Expect a dynamic program of inspiring speakers, practical workshops, and hands-on experiences designed to leave you informed, empowered, and connected.
Key information Date: Weekend of 10th October 2026 Location: Blue Mountains Planetary Health Centre, Katoomba, NSW We’ll be announcing speakers and program details soon.
We are also inviting expressions of interest from individuals and organisations who would like to contribute to the program, host workshops, run a stall or partner with us.
Do you struggle making the most of your veggie garden all year round?
Join Leni from @alchemyfarms_permaculture on Saturday 4th July for her Permaculture Workshop: Learn how to grow WITH the Upper Blue Mountains seasons, rather than battling against them.
During the two-hour session, you`ll cover crop selection for different seasons, what to grow from seeds vs seedlings, frost and wind protection, and nurturing your soil with a seasonal cycle.
Register for this and other sessions as part of our Skill Share Saturdays program via this link: https://events.humanitix.com/skill-share-saturdays-at-the-planetary-health-centre...
From Saturday 4 July, we are opening up the Planetary Health Centre for our monthly Skill Share Saturdays program: https://events.humanitix.com/skill-share-saturdays-at-the-planetary-health-centre
Throughout each day, you can expect to find a variety of sessions focused on restoring the health of the planet, in terms of the environment, community and economy.
Sessions at the first event include:
- What to grow in a Blue Mountains climate - Plant-based eating - Tai Chi and Qigong - Fashion Upcycling and clothing reuse workshop
You are also welcome to bring any surplus seeds or produce for our Crop Swap, or wind down in the Planetary Health Cafe (until 2pm).
Visit the website to view the full program of events and register your place: https://events.humanitix.com/skill-share-saturdays-at-the-planetary-health-centre
Registrations essential.
We are also inviting expressions of interest from individuals and organisations who would like to contribute to the program - please reach out to [email protected] if you are interested!...
🍃Volunteer weekly at the Planetary Health Centre 🍃
From next week, Tuesday 28th April, come and join Leni from @alchemyfarms_permaculture from 10am - 12pm, to help with the management of the Planetary Health veggie gardens, where any surplus produce can be shared!
The gardening session will be followed by a complimentary tea or coffee in the Planetary Health cafe.
📆Day: Every Tuesday 🕙Time: 10AM - 12PM
📍Where: Blue Mountains Planetary Health Centre 33-39 Acacia Street Katoomba (follow the pathways at each side of the building, round to the terrace and gardens).
What shall I bring? All you need to bring is water, gardening gloves and a hat.
Last week we had the pleasure of hosting the first year Medical students from @notredamesyd for their Rural and Indigenous Immersion trip across Katoomba and Lithgow. Across two days, 150 students learnt about the link between human health and a healthy environment, the work of the @bluemountainsplanetaryhealth Initiative and the @bluemountainscitycouncil to create climate resilient communities, and got to explore our site using heat mapping tools....
Join Rotarians for Planetary Health on International Women`s Day, from 2.30-4pm Sun 8 March, for the opening of a portrait display to celebrate local women who have made a meaningful impact on protecting animals and nature. The photographs by Sue Lightfoot and others are part of a long-term initiative to build a living, community-driven database of women working to protect animals and the natural world.
The display will be open until 1 April, Thursday to Saturday, 9.30am–3.30pm at the Junction 142 Village markets (church space). As the project develops, community members will be invited to nominate women whose work deserves recognition.
The launch follows the Uniting Church and Plant Inspired`s monthly community luncheon from 12-2pm, which this month features the Older Women`s Network Blue Mountains. For more information contact 0434 691 496 (Teya)
In a world being threatened by war, greed, cruelty and selfishness, the Planetary Health Wellness Weekend will close with a gathering of people who have faith that kindness, generosity, love, creativity and community, and the healing of our land, are a better way forward. We`re thrilled that harpist Dawn Egan will be performing at this inspiring event in the Planetary Health exhibition space. Afternoon tea will be provided. Register to attend here (link in profile under Wellness Weekend): https://bit.ly/4kUkzfm
Had lunch yet? Head over to the Planetary Health Centre for these delicious offerings from @8thingskatoomba today (Sat 28 Feb): South Indian dosa, Korean bao, NY Cheese burger, Bali nasi, Mullum tofu fries, shoestring fires & red bean mochi!
Don`t miss hearing Andrew Skeoch at 2pm today at the Planetary Health Centre! He`s an acoustic ecologist and author of `Deep Listening to Nature` and uses technology to help identify the different `conversations` happening in the world around us. His presentations are a revelation! Reserve your spot here (link in profile under Planetary Health Wellness Weekend): https://bit.ly/4kUkzfm
In Katoomba, a grassroots litter-picking group tackles rubbish before it reaches our water supply. Their story shows how local environmental action, fueled by community connection, can drive meaningful change for planetary health.
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