Major Update: Bitcoin Mining Heat-Capture Season 2025
HeatHarvest Greenhouse / Proof-of-Growth: Purple Sweet Potatoes & Crawfish, Vlog 2: Claws & Roots , Move-In, Tune-Up, and Flip to Spring. This Vlog features several big upgrades:
Insulated, layered floor: Rubberized PVC, coconut coir, and cement "layered", insulated concrete slab so our precious Bitcoin heat isn’t wicked into the earth. Detailed post on the layered insulated concrete will be added to this thread soon.
Crawfish move-in: Two breeding tanks plus the orange stock tub now hold backup breeders and bulk crawfish stock. We also built and assembled a custom vertical hydroponics growing system that ties directly into the stock tub.
Biological synergy: Crawfish produce ammonia that microbes convert to nitrite and then nitrate for the plants. As plants take up these nutrients, they scrub the water, creating a cleaner, healthier environment for the crawfish and steady feed for the plants.
Temporary automated heating: A modified S19j Pro running a two-hashboard, 120 V modded configuration is keeping the HeatHarvest greenhouse warm, even after a recent drop to 20 F. A simple thermostat brings the #Bitcoin miner online with target of 80 F; so far, temperatures have held between 60–77 F. With winter setting in, the rig hasn’t turned off, so we’re steadily mining Bitcoin and producing HEAT.
Purple sweet potatoes moved in: Twelve 10-gallon grow bags filled with organic soil and our cloned purple sweet potatoes grown from seed potatoes over the spring/summer are now in place, for roughly 960 pounds of total grow soil medium in the greenhouse.
Flip to “spring”: We switched the greenhouse to 24-hour light, sun by day, and an auto-switch runs the grow lights from dusk till dawn. This extended photoperiod, drives aggressive vegetative growth and pushes the HeatHarvest greenhouse into “spring.”
Status:
So far, so good. It took two days to dial in all systems. The real challenge was balancing the closed, circular system between the crawfish stock tank and the vertical hydroponics system. We officially switched to spring conditions three days ago, and we’re already seeing spinach seedlings showing strong growth.
What’s next for Vlog 3
Command Console: Time to give the console some attention and make the HeatHarvest greenhouse as smart and automated as possible. This will house the automation “brain” and our more permanent heating system. We’re waiting on a unique piece of Bitcoin-mining hardware for the final heating setup, it’s going to be very special. Stay tuned.
More spinach starts: Germinate and raise seedlings to 4 inches in a 50/50 coco coir + perlite blend. This keeps roots in a loose medium for easy transfer into the vertical hydroponics system, fed by nutrient-rich water from the crawfish stock tank.
Healthy crawfish: Keep parameters dialed so breeding ramps up and egg production begins.
Build the smart M.O.E.M. (Mining Operation Environmental Monitor), HeatHarvest Monitor (open source): Custom PCB + hardware + firmware (released free and open source on the HeatHarvest GitHub). It will monitor temperature, humidity, O₂, and CO₂, and send email/notification alerts on anomalies (e.g., sudden temperature drops). It will also log long-term data for this season and future HeatHarvest runs. Also feature a web app that allows us to monitor the HeatHarvest greenhouse 24/7 remotely.
Sponsorship stickers: We also need to add our permanent sponsorship stickers. The greenhouse humidity destroyed several sticker rounds, so we’ve ordered permanent vinyl replacements for the sponsor banner.
Current plants in the HeatHarvest greenhouse:
Purple sweet potatoes, spinach, mint, avocados, and Japanese honeysuckle with more to come as space allows.
Countless micro-projects are underway before Vlog 3. Stay tuned, I’ll keep this thread updated until the next Vlog is live. Would like to welcome our latest Sponsor Ungovernable Misfits. Interested in sponsoring? There’s still time DM or email us.
Sponsors:
Bitsbetrippin: bitsbetrippin.io
...
Bitcoin Mining World: bitcoinminingworld.com
...
MegaMiner: megaminer.market
...
Ungovernable Misfits
BeeEvolved
BeeEvolved@primal.net
npub189zw...xefm
Apiculture-Technology
FREE and open-source Bitcoin mining hardware: Don’t throw away or sell your S19j, S19k, or S19 Pro units just yet, developing something tailored for our Bitcoin-mining HeatHarvest greenhouse, semi-waterproof, moisture-resistant, and packed with some intriguing extras. Securing the hashboard with lock mechanisms was a priority, along with a tough and durable 3d printable frame that ties cleanly into other materials after printing.
Working in mounts for alternative thermal-management modules, currently prototyping. Beyond the core functions, kept the pleb #Bitcoin miner in mind with this design, many pleb miners have small print area 3D printers, parts are kept within ranges to fit smaller printer beds. This is Prototype 1, the basic concept. Logged a dozen mod notes, now it’s back to CAD and reprints. Stay tuned, this is shaping up to be perfect for solo plebs mining at home and DIY Bitcoin heat capture projects
Want #Bitcoin to actually move the needle forward for humanity? Trade main character vibes for teammate energy. Egos down, collaboration up.
GM nostr, stop telling yourself you can’t solo-mine a Bitcoin block. Every block is solved by one single ASIC chip. The only guaranteed way to not grab that solo #bitcoin block, is not plugging in your rig.
@primal Premium secured. testing…
W21: E-Waste Conversion, Bitmain S21 Pro Chassis → Gravity-Fed Organic Worm-Casting Miner
W21 is true e-waste upcycling. We repurpose the empty Bitmain S21 Pro chassis as a durable, stackable shell for a gravity-fed vermicomposting system. The design is open-source, and every 3D-printable part is in the HeatHarvest GitHub repo The result is simple and powerful: kitchen scraps and crop trimmings go in; microbially rich worm castings come out, and those castings feed our HeatHarvest purple sweet potatoes in the heat-capture greenhouse.
Why an e-waste conversion?
Obsolete mining hardware is both a problem and an opportunity. The S21 chassis gives you precision metalwork and mounting points that would be costly to fabricate from scratch. Converting that shell into a worm-casting miner keeps material out of landfills and turns an old form factor into a tool for organic #Bitcoin mining heat food production.
What worm castings are and why they matter?
Worm castings are the end-product of vermicomposting: a stable, humus-rich material loaded with beneficial microbes, plant-available nutrients in gentle concentrations, and a high cation-exchange capacity that buffers fertility. In soil, castings improve structure aggregation, water infiltration and holding, and nutrient cycling at the root interface. They’re forgiving low-salt, low burn risk, and effective in small, regular doses. Castings provide the biological side of fertility: resilient, living nutrition that scales with your grow.
The species that makes the magic happen and its life cycle: red wigglers Eisenia fetida
E. fetida is a surface-dwelling compost worm adapted to rich organic matter. It thrives in loose, moist, well-aerated bedding and responds quickly to steady conditions. Cocoons typically hatch in 2–3 weeks temperature-dependent; juveniles reach maturity in 6–8 weeks; adults lay cocoons regularly when moisture, temperature, and food are good. Feed a thin, weekly top layer of chopped vegetable scraps, coffee grounds are fine. Avoid fats, oils, meat, and salty foods that sour the w21 Maintain moisture with light misting if dry, and add dry coconut coir if it’s too wet. Worms migrate upward to fresh feed, while finished castings consolidate below by gravity.
Design logic: gravity in, gravity out
The W21 uses a vertical drop-through stack inside the S21 shell. New feed is always added at the top; as worms move up, the lower material matures and drops into a sealed harvest drawer for easy collection. Gravity is AWESOME 😎
Using castings in the heat-capture greenhouse
Purple sweet potatoes respond beautifully to castings, tuber quality depends on even moisture, steady micronutrients, and a cooperative microbiome. Castings help deliver all three.
Circular systems and why composting matters
The goal is sovereignty through cycles you control. Scraps feed worms; worms make castings; castings feed the next crop; the crop becomes the next scraps. ♻️ Castings reduce dependence on synthetic fertilizers, build soil structure that buffers stress, and equip roots with microbial allies that supply nutrients when plants signal for them. Because the W21 is built from an otherwise obsolete chassis, the loop begins before the biology: first you recycle a device, then you recycle nutrients. That’s sustainability in practice, local inputs, local processing, local food + Bitcoin heat = 😎
W21 proves that an obsolete miner chassis can become a living machine for Bitcoin heat capture, food production and a champion of sustainability. The design is open, the parts are printable, and the process is teachable. Build one. keep it steady, feed it thoughtfully, and put the castings to work where they matter most in your Bitcoin mining heat-capture greenhouse.
This project is part of our 2025 Bitcoin Mining Heat-Capture Season—HeatHarvest: Proof of Growth.
2025 HeatHarvest Sponsors:
Bitsbetrippin: https://bitsbetrippin.ioBitcoin
Bitcoin Mining World:
MegaMiner:
Ungonverable Misfits

Bitcoin Mining World
Education Based Marketplace for the Bitcoin Mining Industry
Bitcoin Mining World is your go-to resource for building a Bitcoin mining business or starting a career in this exciting industry. We offer compreh...

MegaMiner
MegaMiner - ASIC Miner Hardware Sales
Built by miners, for miners. ASIC miner hardware sales, consultation, and procurement.
First purple sweet potato flower of the season, a beautiful milestone and a timely warning. Flowering coincides with shorter days and cooler nights, which push the vines toward senescence: leaves will start yellowing, drop off, and growth will slow dramatically.
For our 2025 Bitcoin Mining Heat Capture greenhouse, that means it’s a critical time for the concrete floor upgrade. We’re going to pour a concrete slab with a rubberized barrier and insulation to prevent conductive heat loss into bare soil. Without it, the ground acts like a massive heat sink and wicks away precious BTUs from the Bitcoin heat capture greenhouse. This weekend is all about slab prep and installing a proper drain. Mixing and pouring the concrete will most likely take place on Monday.
This flower bloom is on one of our mother plants. Mother plants are your year-round insurance policy, keep them healthy and protected, and you can always take cuttings to restart a crop.
What’s timely now is pouring the concrete slab, moving all the plants into the greenhouse, and restoring springlike conditions. We’ll simulate spring with Bitcoin mining heat and supplemental lighting to maximize productivity. With this setup, even in 0 °C in the worst of winter conditions we can grow food as if it were peak spring or summer, faster than ever.
What’s timely now is pouring the concrete slab, moving all the plants into the greenhouse, and restoring springlike conditions. We’ll simulate spring with Bitcoin mining heat and supplemental lighting to maximize productivity. With this setup, even in 0 °C in the worst of winter conditions we can grow food as if it were peak spring or summer, faster than ever.
Fun fact: Our Purple sweet potato flowers are diurnal: they open in the morning and begin closing by afternoon. By later today, this bloom will be mostly closed and easy to miss.
Meet one of our bull breeder crawfish. 🦞
Crawfish are a perfect fit for Bitcoin-powered heat capture and food production: warm, stable water shortens cycles, and focused selection delivers noticeable size gains in as little as 2 generations (often 8–12 months in warm systems).
After harvest, we can mill the shells/claws/exoskeleton, rich in chitin + calcium, to gently buffer acidic soils, feed beneficial microbes, and return minerals to the grow soil in our Bitcoin heat capture greenhouse. Protein to the plate, nutrients back to the soil, a true sustainable, organic, circular loop.
Nutrition (per 100 g cooked): ~77 kcal, 15–17 g protein, 1–2 g fat, 0 g carbs; high in B12, niacin, selenium, zinc, phosphorus, copper, with moderate omega-3s, lean, complete protein.
Why crawfish excel in aquaponics & sustainability?
Biological organic synergy: Crawfish produce ammonia that microbes transform into nitrite and then nitrate for plants. As the plants take up these nutrients, they scrub the water, creating a cleaner, healthier environment for the crawfish.
-Heat-reuse friendly: Mining heat accelerates growth and shortens generation time. Also, it makes crawfish a viable food source in colder climates through Bitcoin heat.
-Circular organic sustainable diet: We can feed organic vegetables that we grow to the crawfish and cycle nutrients within the system.
-Zero waste: Shell powder (chitin + Ca) is a gentle, microbe-boosting plant soil .
-Building looped sustainable food systems that recycle #Bitcoin heat and nutrients. 😎♻️
#Bitcoin Mining Heat-Capture Season 2025: HeatHarvest / Proof-of-Growth, Purple Sweet Potatoes & Crawfish. vlog 1: Dry Run .
We’re excited to launch the first of many Bitcoin Mining Heat-Capture Seasons. Each year, we’ll showcase a fresh set of projects that turns Bitcoin mining heat into real-world impact.
For 2025, our focus is global food sustainability. Even now, many communities and regions lack reliable food security and access to modern financial tools. Bitcoin mining can help address both. By capturing miner heat, people can grow food locally while earning bitcoin and connecting to global commerce.
Imagine a remote village with a short growing season but access to electricity or generators. With Bitcoin-heated cultivation, that community can extend the growing season indefinitely, feed itself, and use Bitcoin mining rewards to upgrade infrastructure, more reliable power, better facilities, and a higher quality of life.
Also Bitcoiners are always wanting to be more self-sustaining, to know where their food comes from, and to avoid synthetic inputs common in industrial agriculture and commercial food supply chains. In Bitcoin we say, “Don’t trust, verify.” Apply it to food: grow it yourself and verify every input. “Proof-of-Work” your own food, no trust required, just quality, organic, self-sustaining harvests powered by Bitcoin heat.
Throughout this season, we’ll share practical, open resources, designs, build guides, and results so anyone can adapt Bitcoin mining heat to their own goals.
Follow along, grow with us, and let’s turn hashrate into harvest. Huge thanks to our sponsors
for providing the tools, resources, and equipment that accelerated this season. Interested in sponsoring? There’s still time DM or email us. Together, we can address real-world problems with Bitcoin mining heat.
Sponsors:
Bitsbetrippin: bitsbetrippin.io
Bitcoin Mining World: bitcoinminingworld.com
MegaMiner: megaminer.market
Calling on #bitcoin #nostr , Open Source EVERYTHING that touches the Bitcoin protocol!
X
Bitcoin UI v3.5 is live!
NEW: Dynamic, real-time fee tiers + “Sweep All” function!
Show your support for free and open-source Bitcoin development! Please like, share, and help spread the word.
Bitcoin UI is currently on the desk of @Human Rights Foundation / @HRF (RSS Feed) and @OpenSats as we work to secure long-term support for this fully open-source Bitcoin freedom tech tool.
Pairing a hardened, headless Bitcoin node with an intuitive and user-friendly Bitcoin UI creates one of the most secure and trustless ways to interact with the Bitcoin protocol. There’s still much work ahead, and we have exciting ideas to make Bitcoin UI even better, adding powerful features that could make it a staple for Apple iOS and MacOS users, while adding novel functions never before seen in a #Bitcoin UI.
Download for free on the Apple App Store:
Explore the full source code on GitHub:
App Store
Bitcoin UI App - App Store
Download Bitcoin UI by Bee Evolved LLC on the App Store. See screenshots, ratings and reviews, user tips, and more apps like Bitcoin UI.
GitHub
GitHub - BeeEvolved/Bitcoin-UI: Bitcoin Core UI for iOS & macOS – a fully open-source, complete Bitcoin node control with sovereign self-custody, a trustless "Don't trust, verify" approach, and features like a modern UI, secure RPC authentication, transaction history, wallet management, full terminal command execution for your headless, hardened and secure Bitcoin node.
Bitcoin Core UI for iOS & macOS – a fully open-source, complete Bitcoin node control with sovereign self-custody, a trustless "Don't...
Open Source #Bitcoin mining hardware - Hashdisk workflow: Nope, Done-ish and Ship it! PoW
#nostr wearable permissionless tech, meshing and chill #bitchat
If you’ve been mining #Bitcoin at a loss for a while and have no intention of turning your machines off, it’s time for some hard truths. 🤣


solo.cat update: implemented some new UI changes, gave it a fresh makeover without losing the original theme. Added clear, human-readable elements such as on the user stats page. Introduced a toggle leaderboard to track both highest hashrate and highest bestshare. Made several other improvements, and themed the docs page to match the homepage. #bitcoin


There’s no limit to failure. Someone asked me, “How many times do you attempt a design before quitting?” My answer was simple: “Until it works.” That’s the truth most people overlook, failure isn’t a quota you run out of, it’s the process that forges success. Acceleration only happens when you refuse to cap the number of attempts and commit fully until the breakthrough arrives.
#nostr Steady, lads and lasses…steady #bitcoin


Despite the principles #nostr is built on, why does the #Bitcoin conversation seem to be more prominently on Twitter?


GM #nostr ☀️ , The best part of waking up is hashrate under your cup.☕️ Open-Source #Bitcoin mining hardware!
Every morning, rise and nourish the good Bitcoiner inside you.

