Turning Heat Into Sats: Key Takeaways from Undermine 2025

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Saz advisor Bob Burnett (orange hoodie) on a panel moderated by mining legend Rob Warren.

The future of Bitcoin mining isn’t just about securing the network—it’s about innovating how we use its energy. That vision was on full display at the Undermine Heatpunk Summit in Denver at The Space, where Bitcoin miners, engineers, and industry pioneers came together to explore one of the most exciting frontiers in mining: heat reuse.

What Is Bitcoin Miner Heat Reuse?

Bitcoin miners generate a tremendous amount of heat. Traditionally, that energy is wasted—but what if it could be repurposed? Heat reuse technology takes that excess thermal energy and redirects it into productive applications like residential heating (see below), greenhouses, and even industrial processes. This approach transforms Bitcoin mining from an energy consumer into a dual-purpose system—securing the network while providing sustainable, decentralized heating solutions.

Sazmining Advisors on the Ground: Troy Cross & Bob Burnett

Sazmining was well represented at the event by Troy Cross and Bob Burnett, both of whom are thought leaders in sustainable Bitcoin mining and energy innovation. Their expertise in integrating mining with real-world energy solutions made them key voices in discussions about the economic feasibility of heat reuse, decentralized mining, and how Bitcoin mining can be leveraged as a strategic energy tool.

Bob Burnett, the founder of Barefoot Mining and a major advocate for heat utilization, spoke about his experience with real-world implementations, while Troy Cross provided deep insights into the environmental and philosophical implications of mining as an energy solution rather than a problem.

We're Already on the Cutting Edge

While many companies are just beginning to experiment with heat reuse, Sazmining is already ahead of the curve. Our sold-out Norway facility is a leading example of how Bitcoin mining and sustainability can work together. Powered by 100% carbon-free energy, the Norway site repurposes waste heat to improve energy efficiency and help with industrial fish drying, demonstrating how Bitcoin mining can integrate seamlessly into sustainable infrastructure.

With growing concerns about energy efficiency and decentralization, the ability to mine Bitcoin while simultaneously reducing heating costs is one of the most compelling arguments for mass adoption. Events like Heatpunk push these conversations forward, bringing together innovators who are actively shaping the future of mining.

Why Heat Reuse Is the Next Big Thing in Bitcoin Mining

The ability to harness Bitcoin’s excess heat fundamentally changes the conversation around mining. Instead of being criticized for energy consumption, mining operations that integrate heat reuse turn into net-positive contributors to local energy ecosystems. This innovation:

Lowers energy costs for home and industrial use
Enhances decentralization by making home mining more viable
Strengthens the economic case for Bitcoin mining globally

As the conversation around energy use evolves, Sazmining is committed to staying at the forefront of innovation—leading the charge in making Bitcoin mining more efficient, sustainable, and decentralized.

🚀 The Heatpunk Summit in Denver was just the beginning. Stay tuned—because Bitcoin mining is about to change forever!

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