SYSTEM LIVE · NODE0 · MCU
EDITION 0.8 — 12 · 04 · 2025
HOME · PRO · FLEET · GRID
THE HOT-WATER HEATER THAT THINKS
Heat your water. Power your AI. Get paid for both.
A home supercomputer built inside your water heater — turning compute into comfort, privacy, and resilience. Every AI prompt is now helping to heat your home.
50–80%
of data-center electricity
becomes waste heat
becomes waste heat
10–15y
expected lifespan, with
field-replaceable compute
field-replaceable compute
1–4×
GPUs / accelerators
per appliance
per appliance
240V
single-circuit standard
HPWH installation
HPWH installation
01 · Manifesto
Your home is becoming the center of compute . Every inference, every render, every AI task generates heat — and for decades, we've thrown that heat away.
CloudBoiler™ reclaims it. We fuse the most efficient water-heating technology with high-performance AI compute hardware.
Faster hot water, lower bills, off-grid capability, and private on-site AI — even when the power or the internet goes down.
While data centers consume entire towns' worth of electricity, your home becomes a micro-data-center node that adds resilience instead of strain.
02 · Three-pillar value
Heat your water.
Offset your bill.
Join the next wave of distributed compute.
PILLAR · I
01
Infinite hot water, powered by compute
Your water heater becomes a thermal battery, heating your home's water from AI tasks you already need.
- Faster hot-water recovery
- Higher overall efficiency
- Lower operating cost
- Superheat capability for large households
PILLAR · II
02
Private, local AI — even when the internet goes down
Run AI tasks at home with ultra-low latency and total privacy.
- On-device inference
- Smart-home automation
- Personal AI models
- Family privacy protection
- No dependency on cloud uptime
PILLAR · III
03
Earn rewards or compute revenue
Use CloudBoiler™ for your own workloads or join a compute-sharing marketplace.
- Sell excess compute
- Run distributed rendering jobs
- Power research workloads
- Support edge services in your region
03 · Technology
A new class of hybrid appliance.
Four systems integrated into one quiet, compact unit. Your home becomes a perfectly balanced ecosystem of thermal storage and compute capacity.
01
SYSTEM · THERMAL
Stratified hot-water tank
Stores heat from compute and the heat pump. Multi-sensor profile keeps the bottom cool to protect GPU inlet temps, mid-region for HX1 compute injection, upper region for HPWH superheat at 140–165°F.
02
SYSTEM · HPWH
Heat-pump water-heating system
Provides ultra-efficient heating and top-off / superheat modes. The HPWH automatically tops off the tank or assists during low-compute periods, ensuring uninterrupted DHW.
03
SYSTEM · COMPUTE
Modular compute sleds
Liquid-cooled, field-replaceable trays hosting GPUs, AI accelerators, TPUs / ASIC inference cards, with cooling manifolds and cold plates thermally linked to the tank.
04
SYSTEM · CONTROL
Dual-controller intelligence
Node0 manages compute orchestration and marketplace coordination. The MCU manages safety, sensing, valves and pumps, and the HPWH state machine — fault-tolerant and predictable across all modes.
MICROCONTROLLER · MCU
Safety + thermal logic
- Safety interlocks
- Sensors (temp · pressure · flow)
- Valves & pumps
- HPWH state machine
↕
FAULT
TOLERANT
BUS ↕
TOLERANT
BUS ↕
SUPERVISOR · NODE0
Compute orchestration
- Workload scheduling
- Cloud / marketplace coordination
- Cross-node communication
- OOB resets
OPTIONAL · MODULE 05
Off-grid backup power
Integrate sodium-ion (Na+) or LFP battery modules for off-grid AI inference, hot water during outages, and grid-islanded home compute.
04 · The CloudBoiler family
Four models. One thermal-compute fabric.
Compare all →
FIG. 04 · CLOUDBOILER HOME
FLAGSHIP · CONSUMER
01 / 04
CloudBoiler™ Home
Hot water + private AI + compute rewards — for families, smart-home users, and privacy-conscious households.
COMPUTE
1× GPU sled
CAPACITY
80 gal · stratified
- HPWH heat-pump core, 240V single circuit
- Wi-Fi / Ethernet · personal AI models
- Local inference + smart-home automation
- Optional Na+ battery module
FIG. 05 · CLOUDBOILER PRO
PROSUMER · CREATOR
02 / 04
CloudBoiler™ Pro
Higher compute density for content creators, simulation pros, and high-power home labs. Designed for garage, workshop, and server-nook installs.
COMPUTE
2–4× GPU sleds
CAPACITY
120 gal · superheat
- Dual 240V circuits · upgraded coolant manifold
- VLAN segmentation kit included
- Distributed render & simulation workloads
- Field-replaceable accelerator trays
FIG. 06 · CLOUDBOILER FLEET
MULTI-UNIT · OPERATOR
03 / 04
CloudBoiler™ Fleet
Multi-unit management for apartments, campuses, and utilities. For property managers, energy aggregators, and municipal pilot programs.
DEPLOYMENT
10 – 1,000 units
CONTROL
Fleet-managed Node0
- Centralized telemetry · OOB management
- Demand-response interface (utility hooks)
- Aggregated thermal + compute scheduling
- Field-replaceable trays · serviceable in-place
FIG. 07 · CLOUDBOILER GRID
DISTRIBUTED · UTILITY
04 / 04
CloudBoiler™ Grid
Distributed compute for demand-response programs and thermal networks. For utilities, grid operators, and ESG-driven infrastructure funds.
CLASS
DER-grade telemetry
LOAD
Schedulable · curtailable
- Aggregated thermal storage at the edge
- API + utility-program interface
- Aligns with electrification & DER goals
- Real-time market-aware scheduling
05 · Accessories & modules
A.01
Compute sled
(1–4 GPU variants) Hot-swap accelerator tray — PCIe gen5, field-upgradeable 1–4 GPUs.
(1–4 GPU variants) Hot-swap accelerator tray — PCIe gen5, field-upgradeable 1–4 GPUs.
A.02
Coolant manifold
upgrade kit Higher-flow loop and quick-connects for dense multi-GPU heat loads.
upgrade kit Higher-flow loop and quick-connects for dense multi-GPU heat loads.
A.03
Na+ sodium-ion
battery module Non-flammable storage that buffers peak compute and grid events.
battery module Non-flammable storage that buffers peak compute and grid events.
A.04
Wi-Fi / Ethernet
VLAN segmentation Isolates compute traffic from the home network — dual-band + PoE.
VLAN segmentation Isolates compute traffic from the home network — dual-band + PoE.
A.05
Utility demand-
response interface OpenADR-ready hooks for grid-signal load shaping and credits.
response interface OpenADR-ready hooks for grid-signal load shaping and credits.
A.06
Pool-heating
loop kit Diverts excess thermal output to a pool exchanger via HOT/COOL ports.
loop kit Diverts excess thermal output to a pool exchanger via HOT/COOL ports.
A.07
Radiant-floor
integration kit Low-temp hydronic tie-in for long-cycle underfloor heat.
integration kit Low-temp hydronic tie-in for long-cycle underfloor heat.
A.08
Auxiliary
polishing unit Add-on stratified tank for very large households or workshops.
polishing unit Add-on stratified tank for very large households or workshops.
06 · Alternative embodiments
Beyond the shower. Wherever your home needs heat.
Every watt of compute becomes useful household thermal energy. CloudBoiler™ feeds domestic hot water by default, and integrates with three optional thermal sinks.
FIG. 11.1
HOT
COOL
[ POOL HEATING ]
Pool heating
Loop excess thermal output into a pool exchanger. HOT/COOL ports manage charge and discharge during peak compute.
FIG. 11.2
HOT
COOL
[ RADIANT FLOOR ]
Radiant floor
Drive a hydronic underfloor circuit. Long-cycle, low-temp loads make excellent thermal sinks for night-time inference.
FIG. 11.3
HOT
COOL
[ AUX. POLISHING ]
Auxiliary polishing unit
Stack a polishing tank for very large households or workshops. Adds capacity without a second appliance footprint.
07 · Why now · market timing
The compute boom meets the electrification wave.
-
01
AI COMPUTE
Demand is outpacing data-center build-out — limited land, water rights, and grid constraints are blocking expansion in major metros.
-
02
50–80% WASTE
of data-center electricity becomes waste heat — and cannot practically be piped into existing neighborhoods. CloudBoiler solves this at the appliance level.
-
03
HPWH GROWTH
Heat-pump water heaters are the fastest-growing residential electrification technology, yet they lack thermal storage flexibility and have slow winter recovery.
-
04
240V STRAIN
Homes are adding more 240V loads (EV chargers, induction, heat pumps) — yet GPU workloads are flexible and schedulable.
-
05
PRIVACY
Consumers want privacy-preserving, on-site AI inference for smart homes, edge devices, and personal data — especially as cloud inference costs surge.
-
06
DER ASSETS
Utilities need new distributed demand-response assets and thermal storage — CloudBoiler provides both, using compute as a controllable load.
-
07
EVERY HOME
Every home with a water heater is a potential micro-data-center node — distributed thermal storage and schedulable compute aligned with energy markets.
Summary · for investors
CloudBoiler sits at the convergence of AI growth, grid constraints, home electrification, and the exploding market for domestic thermal storage — unlocking a category-defining opportunity.
08 · Frequently asked
Questions, answered on the record.
Everything you need to know about installing, owning, and earning with CloudBoiler™. Can't find an answer? Drop us a line at hello@cloudboiler.com.
Q.01 What exactly is CloudBoiler™? +
A hybrid appliance combining a heat-pump water heater with a GPU-powered compute engine. It heats your water using both compute waste heat and a high-efficiency HPWH.
Q.02 Is it safe? +
Yes. CloudBoiler™ uses independent controllers for compute and thermal safety. If any fault occurs, compute shuts down while the heat pump continues normal operation.
Q.03 How much compute power does it have? +
Depending on model, 1–4 GPUs or accelerators — equivalent to a small data-center node.
Q.04 Will it replace my water heater? +
Yes. CloudBoiler™ is a full HPWH appliance capable of meeting all DHW needs.
Q.05 Do I get paid for running compute? +
You may earn credits or revenue through compute-sharing networks, rendering pools, or cloud-load marketplaces. Or you can use the compute entirely for personal local AI.
Q.06 What happens if the internet is down? +
Local AI inference continues. CloudBoiler™ stores thermal energy and performs all safety operations offline.
Q.07 Do utilities support this? +
Yes — CloudBoiler™ aligns with electrification, thermal storage, grid flexibility, and distributed energy resource (DER) goals.
Q.08 What is the lifespan? +
Similar to HPWH units (10–15 years), with field-replaceable compute modules ensuring longevity.
Q.09 What does installation require? +
A standard HPWH installation footprint plus one dedicated 240V circuit for compute (or shared depending on load). Most HVAC/plumbing techs can service it.
Q.10 Does it really reduce energy use? +
Yes. Compute heat is harvested instead of wasted, reducing water-heating load and providing free thermal energy whenever workloads are active.
09 · Early access program
Future-proof your home. Be first in line.
Join the CloudBoiler™ early-access program. Be the first to install next-generation water heating and in-home AI.