Quiet, Custom-Built Antminers for People Who Actually Live With Them

Most Antminers were never designed for a home. They were designed for a hashcenter with concrete floors, industrial ventilation, and nobody trying to sleep twenty feet away. Drop one into a basement or garage as-is and you get a jet engine that pays you back in noise and heat complaints before it pays you back in sats.

D-Central has been hand-building and repairing ASICs in Laval, Quebec since 2016. We build Antminers to order for home miners who want the machine to fit their space, their breaker panel, and their tolerance for noise. That means quieter cooling, smarter power profiles, and honest conversations about what a given outlet can actually run. We are Bitcoin mining hackers, not a drop-ship store, and we would rather take an extra week to build something right than ship you a problem.

Our Custom Antminer Editions

These are not stock units with a sticker. Each build starts with a tested, repaired-as-needed miner and gets modified for living spaces. We are standing on the shoulders of the people who reverse-engineered this hardware before us, and we credit the open-source and community work that made quiet home mining possible at all.

Slim Edition — lower power, lower noise

The Antminer Slim Edition is built around running fewer hash boards at a gentler power target. Pulling a unit down from its stock power point and re-tuning it for efficiency dramatically cuts both heat and fan speed — the two things that make a stock miner unbearable indoors. It is the simplest path to a machine you can run in the same room you work in.

Loki Edition — mine from a standard outlet

The Antminer Loki Edition is built for North American homes that only have standard 120V outlets. By running a single hash board on an appropriate power supply, a miner can hash comfortably inside a 120V circuit budget instead of demanding a dedicated 240V dryer-style plug. It is the difference between calling an electrician and just plugging in.

Space Heater Edition — heat your room, earn sats doing it

Every watt an ASIC consumes becomes heat. Our Bitcoin Space Heater editions lean into that: quiet, enclosed builds tuned to warm a room through the cold months while earning Bitcoin instead of burning it on a baseboard heater. It is the most honest case for home mining there is — you were going to pay to heat the space anyway.

Underclocking and Undervolting: How We Make Them Quiet

Quiet does not come from a magic muffler. It comes from drawing less power, which produces less heat, which lets the fans spin slower. We tune each build using underclocking (lowering chip frequency) and undervolting (lowering chip voltage) to hit a power target that fits your space.

The efficiency gains are real, not marketing. Pulling a 126 TH-class S19 down from its stock point near 3,250W to roughly 1,630W takes it from about 34 J/TH to about 24 J/TH — close to a 29% improvement in efficiency — while cutting the heat and noise nearly in half. You give up some raw hashrate; you gain a machine you can actually live with. We map these trade-offs against documented power profiles before we build, so you know exactly what you are getting.

Worth being clear on one thing: on stock and most aftermarket firmware, voltage is controlled per voltage domain (groups of chips sharing a DC-DC stage), not literally per individual chip, and autotuners calculate the right settings at runtime for your specific silicon rather than reading a fixed table. We tune to your unit, not to a brochure.

120V vs 240V: The Honest Version

This is where a lot of home miners get burned, so here are the real numbers. A standard North American 120V/15A outlet is rated for 1,800W, but the continuous-load rule caps you at 1,440W, and we recommend targeting around 1,200W for a safe margin. That is plenty for a well-tuned single-board build.

• 120V: Easiest — uses outlets you already have. Best for Slim and Loki-style single-board builds. Run it on a dedicated circuit, no extension cords, 12 AWG wiring minimum.
• 240V: Higher power ceiling and better power-supply efficiency, so it suits fuller multi-board builds — but it usually means an electrician and a dedicated circuit.

We will help you match the build to the power you actually have rather than selling you a machine your panel can not feed.

Firmware, Repair, and the Open-Source Path

Tuning lives in firmware. There are several mature options, each with its own dev-fee range (for example, BraiinsOS+ sits around 2–2.5%), and we will help you weigh them honestly on our firmware comparison page. We are also building DCENT_OS — our own GPL-3.0 firmware, currently in closed beta with public beta planned for summer 2026 — as one more option for miners who want a fully open stack. It is not “the best,” it is one more layer decentralized.

Because every build is tested and tuned in-house, the same bench that builds your miner can repair it. Our in-house ASIC repair has been running since 2016, and if you are starting smaller, our Bitaxe hub is a great low-noise entry point into solo and home mining.

Built to Order — and We Are Honest About Lead Times

These are hand-built machines, tested and tuned one at a time. That means a custom build is not same-day shipping — lead times depend on the model, the tuning, and our current bench queue, and we will give you a straight timeline before you pay. We ship from Laval, Quebec, accept Bitcoin and card, and serve customers in English and French.

Ready to Build a Miner You Can Live With?

Tell us your space, your outlet, and your noise tolerance, and we will spec the right build. Browse the custom editions in our shop, or reach out for a build consultation and we will design it with you. Quality over speed — every time.