Mine Bitcoin. Heat Your Home. Two Problems, One Solution.
Every winter, Canadians burn billions of kilowatt-hours just to stay warm. That electricity flows through a resistive heating element, converts to heat, and vanishes into the room. No output. No return. Just a hydro bill.
Now imagine that same electricity flowing through a Bitcoin mining chip instead. The physics are identical: every single watt consumed by a Bitcoin miner converts to heat. 100%. No exceptions. That is the first law of thermodynamics, and it is the foundation of the Bitcoin space heater.
D-Central Technologies pioneered the Bitcoin space heater concept in Canada. We take proven ASIC mining hardware — Antminer S9, S17, S19, L3+, and L7 models — re-engineer them with silent fans, custom 3D-printed enclosures, and optimized firmware, and deliver a plug-and-play heating appliance that also mines Bitcoin. Your heating bill stays roughly the same. But now, every hour your heater runs, it is also stacking sats.
This is not about getting rich from mining. This is about making a heating expense productive. You were going to spend that electricity anyway. A Bitcoin space heater makes it work twice.
Shop All Bitcoin Space Heaters | Talk to a Mining Consultant
How a Bitcoin Space Heater Works: The Physics
The concept behind a Bitcoin space heater is grounded in a fundamental law of physics that most people learn in high school and promptly forget: the first law of thermodynamics. Energy cannot be created or destroyed, only converted from one form to another.
When you plug in a traditional electric space heater, electricity flows through a resistive element. That element opposes the flow of current, and all of that electrical energy converts to thermal energy — heat. A 1,500-watt space heater produces 1,500 watts of heat. Period. No energy is lost. No energy escapes. It all becomes heat in your room.
A Bitcoin miner works on exactly the same principle, with one critical addition. Electricity flows through application-specific integrated circuits (ASICs) — specialized chips designed to perform SHA-256 hash computations at extraordinary speed. These chips resist the flow of current, and all of that electrical energy converts to thermal energy — heat. A 1,400-watt Antminer S9 produces 1,400 watts of heat. Identical to a 1,400-watt space heater.
The difference is what happens during that conversion. While the electricity is being converted to heat, the ASIC chips are performing trillions of cryptographic computations per second. Those computations are hashes — attempts to solve the mathematical puzzle that secures the Bitcoin network. When your miner submits a valid share to a mining pool, you earn Bitcoin. When you solo mine, you have a chance at the full block reward: 3.125 BTC.
So the heat output is identical. The electricity cost is identical. The only difference is that one device also generates Bitcoin while heating your room. The second law of thermodynamics tells us that no process is 100% efficient at performing useful work — some energy always dissipates as heat. In a Bitcoin miner, all the energy dissipates as heat. And that is exactly what you want from a space heater.
This is not theoretical. It is not a marketing angle. It is physics. Every watt in, every watt out as heat, plus Bitcoin.
Read our full Assembly & Maintenance Guide
The Complete Space Heater Lineup
D-Central offers a full range of Bitcoin space heaters, from entry-level units for small rooms to high-output models for garages and workshops. Every model ships with silent fan upgrades, custom firmware, and a 3D-printed enclosure designed for residential use. All units are assembled and tested at our facility in Laval, Quebec.
| Model | Based On | Algorithm | Hashrate | Power Draw | BTU/hr | Noise (Silent) | Best For | Price (CAD) |
|---|---|---|---|---|---|---|---|---|
| S9 Space Heater | Antminer S9 | SHA-256 | ~13 TH/s | ~1,400W | 4,777 | ~45 dB | Small rooms, beginners | $235 |
| L3+ Space Heater | Antminer L3+ | Scrypt | ~504 MH/s | ~800W | 2,730 | ~40 dB | Small rooms, Litecoin miners | $295 |
| S17 Space Heater | Antminer S17 | SHA-256 | ~33 TH/s | ~1,000W | 3,412 | ~40–50 dB | Living spaces, offices | $530 |
| S19 Space Heater | Antminer S19 Series | SHA-256 | ~56 TH/s | ~1,100–3,250W | 3,753–11,089 | ~40 dB | Garages, workshops, basements | From $755 |
| Slim Edition | Antminer S19/S21 Series | SHA-256 | 26–44 TH/s | ~860–930W | 2,935–3,173 | ~35 dB | Home offices, quiet spaces | $560 |
| Loki Edition | Antminer S19 Series | SHA-256 | ~48 TH/s | ~1,100–1,200W | 3,753–4,094 | ~40 dB | 110V homes, quiet operation | $585 |
| L7 Pivotal Edition | Antminer L7 | Scrypt | ~3.5 GH/s | ~1,300W | 4,436 | ~40 dB | Litecoin/Dogecoin miners | $2,350 |
| StealthMiner | Antminer S19 Series | SHA-256 | 26–44 TH/s | ~860–930W | 2,935–3,173 | ~35 dB | Residential stealth setups | $849.99 |
| BitChimney | Antminer L3+ | Scrypt | ~504 MH/s | ~800W | 2,730 | ~35 dB | Compact chimney-style heating | $540 |
All prices in CAD. Noctua Silent cooling included on most models. Standard cooling options available at lower price points. All models ship with optimized firmware (BraiinsOS+ or Vnish) and Home Assistant integration support.
Browse the Full Space Heater Collection
BTU Output and Room Sizing Guide
Choosing the right Bitcoin space heater for your room is no different from choosing a traditional space heater: you need to match the heat output to the space. The standard unit of measurement is BTU per hour (British Thermal Units). Converting watts to BTU is straightforward:
Watts × 3.412 = BTU/hour
Here is how the space heater models compare to a standard electric space heater:
| Heater | Power Draw | BTU/hr | Room Size (sq ft) | Mines Bitcoin? |
|---|---|---|---|---|
| Standard electric space heater | 1,500W | 5,118 | 200–350 | No |
| L3+ / BitChimney (~800W) | 800W | 2,730 | 100–200 | Yes (Scrypt) |
| S17 Space Heater (~1,000W) | 1,000W | 3,412 | 150–300 | Yes (SHA-256) |
| Slim / Loki / StealthMiner (~1,100W) | 1,100W | 3,753 | 200–350 | Yes (SHA-256) |
| L7 Pivotal Edition (~1,300W) | 1,300W | 4,436 | 200–350 | Yes (Scrypt) |
| S9 Space Heater (~1,400W) | 1,400W | 4,777 | 200–350 | Yes (SHA-256) |
| S19 Space Heater (full power, ~3,250W) | 3,250W | 11,089 | 450–700 | Yes (SHA-256) |
For context, a typical Canadian bedroom is 100–200 sq ft, a living room is 200–400 sq ft, and a single-car garage is about 200–300 sq ft. The S9 Space Heater at ~1,400W is the closest equivalent to a standard electric space heater in terms of heat output. The S19 at full power is a serious heating appliance — comparable to a large baseboard heater or a small furnace — best suited for garages, workshops, and basements.
Keep in mind that all our S19-based models (S19 Space Heater, Slim, Loki, StealthMiner) can be underclocked using BraiinsOS+ or Vnish firmware to reduce both power draw and heat output. An S19 underclocked to 1,500W produces the same heat as a standard space heater while mining at a reduced but still meaningful hashrate. This gives you fine-grained control over your heating output.
Read the complete selection guide: Best Miners for Space Heaters
Cost Analysis: Bitcoin Space Heater vs. Traditional Electric Heater
The most common question we get: “Does it actually save me money?” The answer depends on your electricity rate and Bitcoin’s network economics, but the fundamental logic is hard to argue with.
Let us compare two scenarios over a full year, using the Canadian average electricity rate of $0.10/kWh.
Scenario 1: Traditional Electric Space Heater (1,500W)
| Item | Value |
|---|---|
| Power draw | 1,500W |
| Heating season | 8 months (October–May in Canada) |
| Daily usage | 12 hours/day |
| Daily electricity cost | 1.5 kW × 12 hrs × $0.10 = $1.80/day |
| Annual electricity cost | $1.80 × 243 days = ~$437 |
| Bitcoin earned | $0 |
| Net annual cost | -$437 |
Scenario 2: S9 Space Heater Edition (1,400W)
| Item | Value |
|---|---|
| Power draw | 1,400W |
| Operation | 8 months heating (12 hrs/day) + 4 months mining only (24 hrs/day, optional) |
| Heating season electricity | 1.4 kW × 12 hrs × 243 days = 4,082 kWh = ~$408 |
| Summer mining electricity (optional) | 1.4 kW × 24 hrs × 122 days = 4,099 kWh = ~$410 |
| Total annual electricity | ~$408 (heating only) or ~$818 (year-round) |
| Bitcoin mined (estimated, conservative) | Variable — depends on difficulty and BTC price |
| Key insight | During heating season, the electricity was going to be spent on heating anyway. The Bitcoin is pure bonus. |
Here is the economic logic that makes Bitcoin space heaters compelling:
- During heating season, the electricity cost is a sunk cost. You are going to heat your home regardless. A traditional heater and a Bitcoin space heater use similar power and produce similar heat. The only difference is that the mining heater also generates Bitcoin. Every satoshi earned during heating season is pure upside — it is revenue generated from electricity you were already going to spend.
- Mining revenue offsets a portion of your heating bill. Even with an older ASIC like the S9, pool mining generates a small but steady stream of sats. In Quebec, where hydro rates average $0.065/kWh, the offset is even more significant. The exact amount varies with Bitcoin’s price and mining difficulty, but the direction is always positive: some Bitcoin is always better than no Bitcoin.
- In summer, you have options. You can turn the miner off entirely (zero cost, zero revenue). You can vent the heat outdoors using ductwork. You can run it in a basement or garage where the heat is less of a concern. Or you can underclock it to reduce heat while still mining at a lower hashrate. The flexibility is yours.
- Bitcoin you mine today may appreciate. We are not making price predictions — this is about technology, not speculation. But the sats you stack in December 2026 are yours forever. They cost you nothing beyond what you were already spending on heat. If Bitcoin continues its trajectory over years and decades, those “free” sats mined during heating season could become meaningful.
For those in Quebec with Hydro-Québec rates under $0.07/kWh, the economics are particularly strong. For a deeper analysis tailored to your situation, use our Bitcoin mining profitability calculator.
Setup and Installation
Every D-Central space heater ships assembled, tested, and ready to plug in. Our goal is 10-minute setup time. If you can plug in a traditional space heater and connect to WiFi, you can set up a Bitcoin space heater.
The Basics
- Choose your location. Place the unit where you want directed heat. Ensure at least 12 inches of clearance on all sides for proper airflow. The miner pulls cool air from one side and pushes hot air out the other — think of it as a directional heater.
- Check your electrical setup. The S9 and L3+ models can run on a standard 120V/15A outlet. The S17, S19, Slim, and Loki editions support both 120V and 240V, though 240V is recommended for models drawing over 1,200W. If you need a 240V outlet installed, any licensed electrician can add a NEMA 6-20 receptacle in about an hour.
- Connect to your network. Plug in an Ethernet cable or use a Vonets WiFi adapter (available in our shop). Access the miner’s web interface from any browser on your local network.
- Configure your mining pool. Enter your pool URL, your worker name, and your Bitcoin wallet address. We recommend Ocean or Braiins Pool for beginners. Solo miners can point at a solo pool for a shot at the full 3.125 BTC block reward.
- Start mining. Hit start. Watch the hashrate climb. Feel the warm air. Stack sats.
Detailed Guides
We have published comprehensive guides covering every aspect of space heater setup and operation:
- Bitcoin Space Heater Assembly & Maintenance Guide — complete step-by-step assembly, fan replacement, cleaning, and seasonal maintenance
- Electrical Requirements Guide — 120V vs 240V, circuit sizing, NEMA plug types, breaker requirements, and safe wiring for every model
- BitChimney Installation Guide — chimney-style L3+ space heater setup and configuration
- Best Miners for Space Heaters Selection Guide — how to choose the right base miner for your room, budget, and goals
- 120V Bitcoin Mining Guide — safe home mining on standard North American 120V power
Noise Management
Stock ASIC miners are loud — 75 to 80+ dB, roughly the volume of a vacuum cleaner running continuously. That is unacceptable for a home environment. Every D-Central space heater is modded with silent fans (Noctua, Arctic P12 Max, or GELID Gale) that bring noise levels down to 35–50 dB depending on the model. That is comparable to a quiet conversation or a background refrigerator hum.
For further noise reduction, pairing your space heater with a heater case or installing ductwork to route heat to an adjacent room can reduce perceived noise even further.
Real-World Use Cases
Bitcoin space heaters are not a theory. They are running in homes, garages, cabins, and greenhouses across Canada right now. Here are the most common setups we see from our customers.
Home Office Heating
The most popular use case. A home office is typically 100–200 sq ft — a perfect match for the S9 Space Heater or the Slim Edition. With Noctua silent cooling, these models run at 35–45 dB, quieter than most desktop computers. The miner sits in a corner, blows warm air across the room, and stacks sats while you work. During video calls, nobody hears it. The S9 at $235 is the most affordable entry point. The Slim Edition at $560 offers more hashrate in a smaller, quieter package.
Garage and Workshop Heating
Canadian garages are brutally cold from November through March. The S19 Space Heater at full power delivers up to 11,089 BTU/hr — enough to keep a two-car garage workable in subzero temperatures. Because garages are not noise-sensitive environments, you can run standard cooling for maximum airflow, or pair the unit with a duct adapter to push heat where you need it. The miner pays for a portion of its own electricity through Bitcoin, and you get a heated workshop all winter.
Cabin and Cottage (Off-Grid)
Off-grid cabins with solar, wind, or micro-hydro systems often generate excess energy with nowhere to sell it. A Bitcoin miner is the most portable and liquid “buyer of last resort” for surplus electricity. An S9 Space Heater connected to a solar array heats the cabin and converts excess kilowatt-hours into Bitcoin instead of wasting them. This is particularly compelling in remote areas where selling power back to the grid is not an option.
Greenhouse and Growing Operations
This one surprises people. In Canada’s climate, greenhouses need heat for 8–9 months of the year. A Bitcoin space heater provides consistent, dry heat that plants love, while generating revenue that offsets the operating cost. Multiple growers across Canada now use D-Central space heaters as their primary or supplemental greenhouse heat source. The CO2 produced by human presence (not the miner) is the only “emission” involved — this is pure electric heat.
Basement and Den Heating
Basements are naturally cooler than the rest of the house, making them a natural fit for a mining heater. Place the miner near the cold wall, let it push warm air into the space, and use the existing ductwork or a simple fan to distribute heat. The S17 or Slim Edition at 1,000–1,100W provides comfortable supplemental heat for a finished basement without overwhelming the space. During summer, the basement stays cool enough to continue mining without overheating the house.
Whole-Home Supplemental Heating
Some customers run multiple space heaters across different rooms. An S9 in the home office, a Slim Edition in the living room, and an S19 in the garage. Each room gets the heat it needs, and the combined hashrate adds up to a meaningful mining operation. With BraiinsOS+ firmware and Home Assistant integration, you can monitor and control every miner from a single dashboard, adjusting power levels room by room as temperatures change.
D-Central’s Space Heater Story: How We Got Here
D-Central Technologies did not discover the idea that miners produce heat. That is physics. What we did was build the first commercially available Bitcoin space heaters in Canada, turning a datacenter liability into a home heating asset.
It started in 2018. Bitcoin was in a bear market. Mining farms were shutting down. Thousands of Antminer S9 units were being decommissioned — hardware that still worked perfectly but was no longer profitable at industrial electricity rates. We looked at those S9s and saw something nobody else did: a 1,400-watt space heater that also mines Bitcoin.
The first generation was straightforward. Replace the screaming stock fans with Noctua silent fans. Design a 3D-printed enclosure that directs airflow like a traditional space heater. Flash BraiinsOS firmware for auto-tuning and efficiency optimization. Ship it to a customer in Quebec. They plugged it in, pointed it at Slush Pool, and heated their home office for the entire winter while accumulating sats.
Since then, we have expanded the lineup to cover every Antminer generation: S9, L3+, S17, S19, S21, and now the L7 with our Pivotal Edition. We have designed the BitChimney — a chimney-style enclosure that converts an L3+ into a vertical convection heater. We created the Slim Edition — a recycled-PSU build with a SilentMiner cable and 3D-printed chassis for the quietest possible home mining experience. We partnered with Structur3.io to build the StealthMiner, and we developed the Loki Edition for 110V homes that do not have 240V circuits.
Every unit is assembled, tested, and shipped from our facility at 1325 Rue Bergar, Laval, QC. We are a team of Bitcoin Mining Hackers who take institutional-grade mining hardware and re-engineer it for the home miner. The space heater lineup is the purest expression of that mission: take something that was designed for a datacenter, hack it for your living room, and decentralize the Bitcoin network one Canadian home at a time.
Every hash heats. Every hash counts.
DIY Space Heater Kits
Already have an Antminer sitting in your closet? We sell the cases, fans, and accessories separately so you can build your own Bitcoin space heater.
| DIY Product | Compatible With | Price (CAD) |
|---|---|---|
| S9/L3 Space Heater DIY Box | Antminer S9, L3+ | $99.99 |
| S17/T17 Heater Case | Antminer S17, T17 | $160 |
| Slim DIY Case (S19/S21) | Antminer S19, S21 Series | $199.99 |
| Slim DIY Kit | Antminer S19, S21 Series | $200 |
| Space Heater XL DIY Case | Larger Antminer models | $200 |
| S9 Space Heater Case | Antminer S9 | $150 |
| DIY BitChimney Kit | Antminer L3+ | $169.99 |
| SilentMiner Fan Speed Reducer Cable | All Antminer models | $4 |
All DIY cases are 3D-printed in Canada and designed for plug-and-play assembly with Noctua or Arctic silent fans. Need the base miner too? We sell refurbished Antminer S9 units starting at $35 and L3+ units starting at $139.99.
Frequently Asked Questions
Is a Bitcoin space heater safe to use at home?
Yes. A Bitcoin space heater is an electric heater. There is no combustion, no gas lines, no carbon monoxide risk. The heating element is an ASIC chip enclosed in a 3D-printed case with controlled airflow. It is electrically identical to any resistive electric heater. All D-Central space heaters are tested before shipping and come with optimized firmware that monitors temperatures and auto-throttles if the unit overheats. We recommend following standard space heater safety: maintain clearance from combustibles, do not cover the air intake or exhaust, and use an appropriately rated outlet and circuit breaker.
How loud is a Bitcoin space heater?
With Noctua or Arctic silent fans, our space heaters run between 35 and 50 dB depending on the model. For comparison: a whisper is about 30 dB, a quiet library is 40 dB, and a normal conversation is 60 dB. The Slim Edition at ~35 dB is the quietest model in our lineup. The S9 with Noctua fans runs at ~45 dB. Standard (non-Noctua) cooling options are louder but more affordable. Stock Antminer fans (which we replace) run at 75–80+ dB — we would never ship that for home use.
Can I use a space heater miner as my only heat source?
For a single room, absolutely. An S9 Space Heater produces the same heat as a 1,400W electric heater, which is sufficient for a 200–350 sq ft room. For whole-home heating, a single unit is not enough — but multiple units placed in different rooms can provide significant supplemental heat. Some customers in smaller homes use 2–3 space heaters as their primary heat source during shoulder season (fall and spring) and supplement with their central heating during the coldest months.
What electrical setup do I need?
The S9 and L3+ models work on a standard 120V/15A outlet — no special wiring required. Models drawing over 1,200W (S17, S19, L7 Pivotal) perform best on a 240V circuit with a NEMA 6-20 outlet. If you do not have 240V available, the Loki Edition is specifically designed for 110V operation with a modified PSU. For full details, read our Electrical Requirements Guide.
Can I run a space heater miner on 120V?
Yes, with limitations. The S9, L3+, BitChimney, and Loki Edition are all designed for 120V operation. The S17 and Slim Edition support 120V but at reduced power. The S19 at full power requires 240V. For a comprehensive guide to 120V mining, read our 120V Bitcoin Mining Guide.
How much Bitcoin will I earn from a space heater?
This depends on the model, your electricity rate, the current Bitcoin price, and mining difficulty. We intentionally do not publish specific dollar amounts because they change constantly. What we can tell you is the principle: during heating season, the electricity cost is a sunk cost for heating. Any Bitcoin earned is pure bonus. Even small amounts of sats accumulate over months and years. Use our Bitcoin mining calculator to estimate current returns based on your specific setup.
What happens in summer when I do not need heat?
You have several options. (1) Turn it off entirely — zero cost, zero heat, zero mining. (2) Move it to a basement or garage where the heat is less of a concern. (3) Vent the hot air outdoors using flexible ductwork. (4) Underclock the miner using BraiinsOS+ or Vnish firmware to reduce heat output while still mining at a lower hashrate. (5) In cooler Canadian climates (northern Ontario, Prairies), some customers run their miners year-round. The choice is yours.
Does the mining affect my home internet?
No. A Bitcoin miner uses minimal bandwidth — typically less than 1 MB per day. It is comparable to leaving a browser tab open. It will not affect your streaming, video calls, or gaming. The miner communicates with the mining pool using tiny data packets and does not require fast internet — even a basic 5 Mbps connection is more than sufficient.
Do I need special ventilation?
Not for most setups. The miner pulls cool air from one side and pushes warm air out the other. As long as the cool-air intake is not blocked and the warm air has somewhere to go (i.e., your room), the miner regulates its own temperature. If you install the miner in a closet, enclosed space, or duct it to another room, you will want to ensure proper airflow in and out. Our Assembly & Maintenance Guide covers ventilation in detail.
Which model should I choose for my room size?
Small room (100–200 sq ft): L3+ Space Heater, BitChimney, or S9 Space Heater. Medium room (200–350 sq ft): S9 Space Heater, S17 Space Heater, Slim Edition, or Loki Edition. Large room or garage (350–700 sq ft): S19 Space Heater at full power. For a detailed sizing guide, see the BTU and Room Sizing section above or read our Best Miners for Space Heaters Guide.
What firmware do the space heaters use?
Most models ship with BraiinsOS+, an open-source mining firmware that provides auto-tuning (automatically finds the optimal frequency and voltage), power limiting (set a maximum wattage and the firmware handles the rest), and Home Assistant integration for smart home control. The L7 Pivotal Edition ships with Vnish firmware. Both offer web-based dashboards accessible from any browser on your local network.
Can I convert my existing Antminer into a space heater?
Yes. If you already own an Antminer S9, S17, S19, L3+, or L7, we can convert it into a Space Heater Edition at our repair lab in Laval. The conversion includes silent fan replacement, enclosure installation, firmware flash, and full testing. Alternatively, purchase one of our DIY cases and do the conversion yourself.
Ready to Heat Your Home and Mine Bitcoin?
You are going to heat your home this winter. That is not optional in Canada. The only question is whether that electricity does one job or two.
A traditional space heater converts electricity to heat. A D-Central Bitcoin space heater converts electricity to heat and Bitcoin. Same power draw. Same heat output. Different results.
Nine models. Silent fan upgrades on every unit. 3D-printed enclosures made in Canada. BraiinsOS+ or Vnish firmware with Home Assistant integration. Prices from $235 to $2,350 CAD. Ships from Laval, Quebec. Canadian warranty included.
Browse All Bitcoin Space Heaters
Not sure which model fits your space? Our mining consultants offer free guidance on model selection, electrical requirements, and installation planning. Or reach us directly at [email protected].
You were going to spend that electricity anyway. Make it work twice.
D-Central Technologies — Bitcoin Mining Hackers since 2016. 1325 Rue Bergar, Laval, QC H7L 4Z7. 1-855-753-9997.