Proof of heat · QuantumRad SHA-256 mining radiator

Heat your room.
Mine Bitcoin.
Get paid for the warmth.

Satostat is a wall-mounted electric radiator whose heating element is an array of Bitcoin mining ASICs. Every watt that warms the room also hashes on the network, and the rewards land in your wallet through the Satostat iOS app.

Three heat modes Stratum V2 iOS app Target specification
QRAD-01 · LIVING ROOMMAXHashing
Heat output
792W

14.3 kWh into the room today

Earned today
£0.99

1,412 sats · 28% of today's heat paid back

Hashrate
37.9TH/s
Surface temp
61.4°C
Room
21.5°C
hashrate · last 24 h£8.41 earned this month
400–800WVariable power envelope
38TH/sPeak hashrate at MAX
48–68°CFront surface temperature
890×420mmPanel, 100 mm off the wall
The pitch

The world's problem, and the radiator that pays you to fix it.

Satostat started as a patented six-board mining radiator built in the UK during the 2022 energy crisis. The silicon has changed to Bitcoin ASICs; the problem it was built for has not.

The problem

Heating is unaffordable

As of 2022, more than a third of Britons could not afford to heat their homes to a comfortable level. Every winter since, the gap between tariffs and incomes has stayed open.

Fossil fuels drive warming

Gas boilers and fossil generation release vast amounts of harmful by-products. Domestic heat is one of the last large sectors still to be electrified.

Business bills keep rising

Commercial property owners continue to see energy costs climb, the most visible impact of the energy crisis. Heat is a cost line with no return.

The solution

Same heat, plus income

The same or better heating than a traditional electric radiator, while the unit earns Bitcoin rewards for the household. Heat you were already paying for becomes heat with a rebate.

No fossil fuel at the point of use

Fully electric. Paired with rooftop solar or a green tariff, the heat and the hashing are both zero-carbon at the home.

Commercial heat that pays back

For offices, workshops and communal areas, rewards offset the cost of warming the space. Multi-unit fleets report energy and earnings per room.

Market

8billionPeople in our world · total available market

Everyone who needs to be warm in winter is a potential user of a heater that pays.

6.9billionHave access to electricity (2022) · serviceable market

The addressable base for any fully electric heating appliance with a network connection.

$1.3trillion +Renewable energy market, 2030 · projected

Valued at $881.7 billion in 2020 and forecast to reach $1.9 trillion by 2030 at 8.4 % CAGR. Electrified heat is the fastest-moving slice.

How Satostat makes money

Hardware

Radiators and desktop units sold direct and through installers. Hardware margin on a premium electric radiator with a serviceable board bay.

App Pro

Free app for control and payouts. Optional subscription for tariff optimisation, multi-home fleets, exports and advanced scheduling.

Pool share

Default pool routing carries a small fee share, with users free to point the unit at any pool or their own node.

Pilots and retrofit

Paid pilot deployments with housing providers and commercial landlords, feeding the government-funded retrofit route below.

Timeline

2019

Founded as an idea: change how homes are heated by putting mining hardware inside the radiator.

2020

The world's smallest six-card mining system with CPU mining built, setting the form factor.

2021

Patented design and working prototype of the mining radiator completed.

2022

Plan set, 3D renders and investor deck. Partnership model with governments and housing associations defined.

2023

Further prototype stages to reach the finest level of radiator possible before market.

2025

Platform moves from GPU and CPU cards to SHA-256 Bitcoin ASIC hashboards. Thermal targets recalculated.

2026

Rebranded as Satostat. iOS app, derived plan set and funding programme under way.

How it works

One watt in. Heat and hashes out.

An electric heater converts electricity to heat at 100%. So does a mining ASIC. The difference is that the ASIC does useful proof-of-work on the way, and the Bitcoin network pays for it.

01 · POWER

Mains to hashboard rails

Input
230 V AC, 13 A plug, UK/EU
PSU
Titanium-class, active PFC
Envelope
400 / 600 / 800 W set by heat mode
02 · HASH

ASIC array does the work

Silicon
5 nm SHA-256 ASICs
Efficiency
≈ 21 J/TH at the wall
Output
Up to 38 TH/s, 100 % as heat
03 · HEAT + REWARD

Room warms, wallet fills

Heat path
Fin stack → vertical airflow
Reward path
Pool share → app wallet
Payout
On-chain or Lightning, daily

Thermal architecture

Five layers between the silicon and your skin.

The radiator is a pressed galvanised-steel shell around a vertical air channel. Two rows of six fans push intake air up across the hashboard stack and out through the top vent, so the room fills with warm air from the top down.

E · REAR BRACKET D · 2 × 6 FAN ROWS C · 6 HASHBOARDS B · ALUMINIUM FIN STACK A · PRESSED STEEL FRONT INTAKE ↑ VERTICAL CHANNEL ↑ TOP VENT
A
Pressed steel front

Galvanised sheet pressed as one piece, powder coated. Top slot is the only exit vent, so convection carries the air column upward.

B
Aluminium fin stack

Extruded fins bonded to the hashboard heatsinks spread the load so the front surface sits in the 48–68 °C band and never spikes.

C
Six hashboards

Three sets of two. The number of active boards is the primary heat control; fan speed is the secondary. Boards hot-swap through the rear service hatch.

D
Two rows of six fans

Moulded into the rear bracket. Row B pushes across the array, row A pulls up to the vent. 120 mm, fluid bearing, PWM.

E
Rear bracket and power cage

Wall-mount rail, PSU bay, Ethernet and mains entry. The air-compliant cage holds the boards 25 mm off the shell.

Heat modeActive boardsWall powerHashrateFront surfaceRoom outputAcoustic
ECO2 of 6400 W19 TH/s48 °C20–28 °C< 28 dB(A)
COMFORT4 of 6600 W28 TH/s58 °C28–38 °C< 34 dB(A)
MAX6 of 6800 W38 TH/s68 °C38–48 °C< 40 dB(A)

Room output is the air temperature at the top vent. Surface and acoustic figures are design targets measured at 20 °C ambient, 1 m. The thermostat modulates within a mode by trimming board clock, so power is continuous between 400 and 800 W.


Plans and designs

The original plan set.

Dimensioned elevations, sections and renders from the 2022 design programme, with the desktop heater drawing from 2023. Click any sheet to open it at full size.

Dimensioned plan set: top plan, front elevation, left and right elevations, bottom plan and rear elevation of the 890 by 420 millimetre radiator, with two axonometric views
QuantumRad V1 · dimensioned plan set890 × 420 mm
Plan set showing the fin pattern on the front elevation and the layered rear elevation
V1 · fin pattern and rear layersSheet 2
Version 2 dimensions and plans with elevations and two shaded axonometric views
V2 · dimensions and plansRev 2
Diamond Desktop Heater drawing with front, side and plan views and callouts for the fans, shell, mesh intake, LED strip and power base
Diamond Desktop Heater DDHv1 · callout sheet932.8 × 572.8 × 161.3 mm
Render of the black finned radiator on a white wall with a grey side unit
Render · fin front, carbonV1
Render of the grey three-bar radiator with a side unit
Render · three-bar front, graphiteV2
Render of the plain white panel radiator
Render · flat panel, boneV2
Render of the black finned radiator with the three-heat side unit
Render · carbon with side unitV1
Close render of the radiator corner showing the fin depth
Render · corner and fin depthDetail
Close render of the radiator edge against a herringbone floor
Render · edge profileDetail
Living room render with four radiator finishes mounted on one wall
Render · finish range in a living roomBone, white, graphite
Living room render with the dark finish range
Render · dark finish rangeCarbon, black, graphite
Render of the black finned radiator between two side units
Model · fin front with side unitsV1
Render of the white flat panel with a grey side unit
Model · flat panelV2
Render of the graphite three-bar radiator
Model · three-bar frontV2
Derived plans · Rev A

New drawings built from the plan set.

Six sheets derived from the V1 dimensions, drawn for the ASIC configuration. Board bays follow the three-column layout of the original, so the die-cast family and the mounting hardware share parts with V1.

5030324010 420 A WALLB RAIL BRACKET · 50C FAN ROW · 120 mm PWMD HASHBOARD BAY · 6 × 6.4 TH/sE ALUMINIUM FIN STACKF PRESSED STEEL FRONT · 1.2 mm INTAKE bottom mesh, full widthEXIT top slot, 30 × 860 mm OVERALL DEPTH 100 mm OFF WALLSECTION A-A · SCALE 1:5 SAT-QR1-SEC-001 · REV A
Section A-A · vertical air channel

Layer depths taken from the V1 top plan (50 / 30 / 32 / 40). Shows intake, the board bay and the single top exit.

SEC-001 · Rev A
4007001290 420 QR2-2 · 2 BOARDSQR2-4 · 4 BOARDSQR2-8 · 8 BOARDS COLUMN PITCH 297 mm (890 ÷ 3) SIDE MARGIN 50 mm HEIGHT 420 mm (V1)W = 100 + 297 × n columns → 400 / 700 / 1290 mm DEPTH 100 mmPOWER 135–270 W · 270–540 W · 540–1080 W HASHRATE 13 · 26 · 51 TH/sSAT-QR2-ELE-002 · REV A · DERIVED FROM V1 PLAN SET
V2 die-cast family · front elevations

Widths derived from the V1 column pitch. One tooling family, three bay counts, shared fan and PSU modules.

ELE-002 · Rev A
890 RAIL800 FIXING CENTRES 320 HOOK DETAIL 1:2 RAIL PAIR · 2 × 890 mm · 2 mm GALV. STEELFIXINGS 6 × M8 SLEEVE ANCHOR (MASONRY) OR 6 × M6 TOGGLE (PLASTERBOARD) TOP RAIL 1.0 m FROM FLOOR MINSAT-QR1-MNT-003 · REV A
Wall rail and fixing detail

Two rails at 320 mm centres from the V1 side elevation. Six fixings, hook-on hang, anti-lift screw at each end.

MNT-003 · Rev A
≥ 150 ≥ 300 ABOVE VENT ≥ 100≥ 100 NO CURTAINS OR SHELVES IN ZONE 13 A SOCKET ≤ 1.5 m INSTALLATION ZONE · 13 A PLUG-IN · NO HARDWIRE REQUIRED · IP20 INDOORSAT-QR1-INS-004 · REV A
Installation clearances

Minimum clearances for the vertical air channel to work and for the room-heater standard. Plug-in, no electrician needed.

INS-004 · Rev A
MAINS 230 VRCD · FUSEPSU · PFC · 12 V HB1HB2HB3HB4HB5HB6 12 V BUS · 70 A CONTROLLERARM SoC · TPM 12 × NTCCURRENT SENSEFAN PWM ETHERNET · Wi-Fi 6iOS APPSTRATUM V2 POOL THERMAL FUSE 85 °C IN SERIES WITH PSU ENABLE · BOARD THROTTLE AT 95 °C DIE SAT-QR1-ELC-005 · REV A
System block diagram

Power, control and network paths. The thermostat loop runs on the controller; the pool link is the only outbound connection.

ELC-005 · Rev A
932.8572.8 A DIE-CAST SHELL · 2 PARTB HASHBOARD · 6.4 TH/sC DUAL SYNCED FANSD MESH INTAKEE S-VENT EXITF LED MODE STRIPG BASE · 425 × 50 mm135 W · TIP-OVER CUT-OUTSAT-DDH-SEC-006 · REV A
Diamond Desktop · section

Single board stood vertically in the faceted shell from the DDHv1 sheet, with the fan pair and S-vent shown in section.

SEC-006 · Rev A

Mining engine

A proper miner, not a novelty.

The hashboards, firmware and network stack are what you would expect in a data-centre unit, scaled to a room and tuned for quiet, consistent heat instead of peak hashrate.

Hashboards

  • AlgorithmSHA-256d (Bitcoin)
  • ASIC process5 nm
  • Chips per board12
  • Board hashrate6.4 TH/s
  • Efficiency, wall≈ 21 J/TH
  • Clock rangeUnderclock 40–100 %
  • Die temp limit95 °C, auto throttle
  • ServiceRear hatch, tool-free

Firmware

  • ProtocolStratum V2, V1 fallback
  • PoolAny, 3 with failover
  • Solo modeOwn node via RPC
  • UpdatesSigned OTA, A/B slots
  • ThermostatPID on room sensor
  • Scheduling7-day, tariff aware
  • Local APIREST + MQTT, LAN only
  • LogsOn-device, exportable

Control & connectivity

  • ControllerQuad-core ARM SoC
  • Wi-FiWi-Fi 6, 2.4 / 5 GHz
  • WiredGigabit Ethernet
  • Local radioThread + BLE for setup
  • Sensors12 × NTC, inlet/outlet, current
  • On-unit controlCapacitive mode + dial
  • Multi-unitUp to 16 per home
  • SecuritySecure boot, TPM key store

Safety cut-outs

Independent thermal fuse on the front panel at 85 °C, board over-temp throttling at 95 °C die, over-current and earth-leakage protection in the PSU bay.

Surface compliance

Designed to the room-heater surface temperature limits in IEC 60335-2-30. Front panel stays below the metal-surface threshold at every mode.

Certification targets

UKCA and CE marking, EN 55032 / 55035 EMC, RoHS and WEEE. Pilot units ship under a test-and-evaluation programme before full certification.

Privacy

Telemetry stays on the unit and in your app. Pool credentials and payout addresses are stored in the TPM; nothing is pooled through Satostat servers.

Satostat for iOS

Thermostat and wallet in one app.

Set the room temperature, choose how hard the radiator works, and watch the rewards arrive. The app is the controller, the earnings ledger and the payout wallet, and it works over your LAN when the internet is down.

Earnings
Heating
Wallet

The phones above are live. Try them.

Heat first, hash second

The thermostat always wins. Set a room target and the radiator picks the lowest mode that holds it, then steps up when the room asks for more.

Tariff aware

Import an agile or time-of-use tariff and the schedule shifts MAX mode into the cheapest half-hours, pre-heating the room before peak pricing.

Your keys, your sats

Payout addresses are generated on your phone. Lightning for small daily payouts, on-chain for larger sweeps. Export a CSV for your records at any time.

Whole-home view

Group up to sixteen units by room. One screen shows total draw, total hashrate and per-room temperature with history.

Works offline

Control over the LAN with no cloud dependency. If the internet drops the unit keeps heating as a plain electric radiator until the pool reconnects.

Widgets and Siri

Lock-screen widgets for sats today and room temperature. Shortcuts for mode changes, so "set the living room to Eco" works from your wrist.

Economics

What the warmth costs after rewards.

A conventional electric radiator turns every kilowatt-hour into heat and nothing else. QuantumRad turns the same kilowatt-hour into heat plus a share of block rewards. Change the assumptions and see the net cost move.

Electricity per day£1.60
Rewards per day£0.44627 sats
Net heating cost per day£1.16

Daily cost of the same heat · £

Conventional radiator £1.60 QuantumRad, net £1.16 Heating cost offset: 27 %
Electricity onlyElectricity minus rewards

Rewards are estimated as your share of network hashrate × 144 blocks × 3.125 BTC subsidy, less pool fee, and exclude transaction fees. Mining income varies with price, difficulty and uptime and is not guaranteed. Electricity, hardware wear and tax are yours to account for. Defaults are placeholders for you to change, not forecasts.


Product range

Three form factors. One engine.

The same hashboard, controller and app across a wall radiator, a die-cast family in three sizes and a desktop unit. Everything is serviceable and every board is interchangeable.

890 mm 420

QuantumRad V1 wall · 6 boards

The launch unit. Pressed galvanised-steel shell, six hashboards, two fan rows, wall rail mount. The first production radiator and the reference platform for the app.

  • 890 × 420 × 100 mm, 14.5 kg
  • 400–800 W, 19–38 TH/s
  • Powder coat: carbon, bone, gold
2 BRD4 BRD8 BRD

QuantumRad V2 die-cast · 2 / 4 / 8 boards

A die-cast three-layer shell with sculpted fins, offered in a small two-board unit for bedrooms, a four-board standard and an eight-board unit for open-plan and commercial rooms.

  • 135 W to 1.1 kW across the range
  • Flush wall or freestanding feet
  • Shared boards and PSU modules with V1
933 mm 573

Diamond Desktop DDHv1 · 1 board

A faceted two-part die-cast shell over a single hashboard, mesh intake below, dual synced fans and an S-vent that throws warm air across a desk. A lit strip along the base shows mode.

  • 932.8 × 572.8 × 161.3 mm
  • 135 W, 6.4 TH/s, under 25 dB(A)
  • Painted any finish, tip-over cut-out
Government funding

Satostat is working on government funding.

Fuel poverty and heat decarbonisation are the two problems UK public money is already pointed at. Satostat is mapping its pilot programme against those schemes so that housing providers can deploy units with grant support rather than capital. No award has been made yet; this is the route we are working.

ProgrammeWhat it fundsFit for SatostatStatus
Warm Homes PlanPublic commitment of around £15 billion to 2030 to cut bills, reduce fuel poverty and move homes to clean, affordable heating.The umbrella programme. Fully electric heating with a bill offset sits inside its goals.Mapping
Warm Homes: Social Housing FundGrants to social landlords for energy upgrades in tenants' homes. Successor to the Social Housing Decarbonisation Fund.Primary route. A housing-association pilot block applies with Satostat as the technology partner.Preparing partner pack
Warm Homes: Local GrantLocal-authority delivered upgrades for lower-income households, running to 2027/28.Private-rented and owner-occupied homes in fuel poverty, delivered through a council scheme.Mapping
DESNZ heat innovation competitionsInnovation funding rounds for low-carbon heat technologies and installation at scale.Monitored field trial: measured heat output, energy use and household earnings across the pilot.Application drafting
Innovate UK Smart GrantsR&D grants for game-changing, commercially viable innovation from UK businesses.ASIC hashboard-to-radiator integration, thermostat firmware and the surface-temperature compliance work.Mapping
R&D tax relief and Patent BoxTax relief on qualifying R&D spend; reduced corporation tax on profits from patented inventions.Applies to the patented radiator design and the development programme from EVT onward.In scope
Local-authority fuel-poverty pilotsCouncil and devolved programmes trialling new ways to lower heating costs for vulnerable households.Small monitored deployments that produce the evidence the national schemes ask for.Approaching councils

Why public funders should care

  1. Heat that pays a rebate directly to the household, with no means test or voucher process.
  2. Fully electric. Every unit installed is a gas appliance not installed.
  3. Every unit reports its own energy use and heat delivered, so outcomes are measured, not estimated.
  4. Plug-in installation. No boiler removal, no wet system, no electrician visit.
  5. UK-designed, with a patented design and a UK assembly plan.

What we are asking for

  1. One housing provider to host a monitored pilot of 20 to 50 units for one heating season.
  2. Grant support for the units and the metering, matched by Satostat's development spend.
  3. Independent measurement of heat output, electricity use and household earnings.
  4. A published report that the national schemes can use to judge the technology.

Funding names and figures reflect public announcements as of 2026 and are summarised here, not quoted. Check the official programme pages before relying on them.

Programme

From prototype to pilot homes.

Phase 1Prototype

Bench unit with six boards, pressed shell and the patent-described airflow channel. Thermal and acoustic characterisation.

Complete
Phase 2EVT

Engineering validation: production hashboards, Titanium PSU, controller board, first firmware with Stratum V2 and PID thermostat.

In progress
Phase 3DVT + app beta

Design validation, surface-temperature and EMC pre-compliance. TestFlight beta of the iOS app with wallet and scheduling.

Next
Phase 4Pilot

Pilot units in homes and a housing-association block under a test-and-evaluation programme, with monitored energy and earnings data. Grant-supported where the funding route above lands.

Planned
Phase 5Production

Certified units, die-cast V2 line and desktop unit. App Store release and multi-unit home management.

Planned
FAQ

Straight answers.

Is it as warm as a normal electric radiator?

Yes, watt for watt. All electrical resistance heaters and all mining ASICs convert electricity to heat at effectively 100 %. An 800 W QuantumRad puts the same heat into the room as an 800 W panel heater. The difference is the vertical airflow design, which fills the room from the top faster than a passive panel.

Will it pay for my heating?

It offsets part of it. The calculator above uses your own assumptions. With typical UK tariffs and current network difficulty the rewards cover a portion of the electricity, not all of it. Treat the rewards as a discount on heat you were going to buy anyway, not as an income.

How loud is it?

The fans are 120 mm fluid-bearing units run at low RPM because the air channel is tall and the fin stack is large. Design targets are under 28 dB(A) in ECO and under 40 dB(A) in MAX at one metre, which is quieter than a fridge.

Do I need to understand Bitcoin?

No. The app sets up a wallet on your phone, picks a pool and starts hashing when the room needs heat. If you already run a node or prefer a specific pool you can point the unit at it in settings.

Does it need the internet to heat?

No. Without a connection it behaves as a plain electric radiator and follows its last schedule. Mining resumes when the connection returns.

Who holds the Bitcoin?

You do. Payout addresses are generated on your phone and written to the unit's secure element. Satostat never custodies funds and cannot see your balance.

What about summer?

Set the thermostat to a summer target and the unit idles, or switch it off entirely. Mining only runs when the room wants heat; there is no mode that heats a room you did not ask to heat.

Can it be installed in social housing or commercial space?

That is the pilot programme. The unit mounts on a standard rail, plugs into a 13 A socket and reports energy use per room, which makes it straightforward for housing providers to monitor.

Waitlist

Reserve a place in the pilot.

Pilot units go to homes and housing providers first. Leave an address and we will send the specification sheet and pilot terms when the EVT phase closes.

Nothing is sent from this page yet. Entries are kept on your device until the waitlist service is connected.