The first

computing heater

for smart buildings


We bring intelligence into buildings


Recycled energy


Heating bill



Qarnot designed and operates the Q.rad, the first computing heater using embedded microprocessors as heat source. Totally silent, it gets computing instructions through the Internet. The heat produced by computing provides then free and efficient heating for residential, office and public buildings. Qarnot offers a cloud computing service through a fully distributed infrastructure where computing power is deployed no longer in concentrated data centers, but split throughout the city in the form of Q.rads.

Discover the Q.rad

Make your building smart

phone_iphoneRemote control

lock_outlineIntrusion detection

person_pin_circleFamily member recognition

wifiDynamic Wifi

cloud_queueAir quality monitoring

flash_onEnergy consumption monitoring

No more need for a hundred small devices working on battery. Present in every room, The Q.rad integrates more than 20 sensors and interfaces in a single elegant device. Make your building safer and more comfortable, and make it easy.

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An infrastructure for green computing

The heat generated by all the data centers in the world could already heat half of Europe’s households and doubles every 5 years. The digitalization of our economies call for drastically more energy efficient alternative models to data centers.

Instead of concentrating servers in data centers, Qarnot distributes them within the city in the form of heaters, computing remotely for companies.

Qarnot gives its cloud clients access to green parallel processing on fast high-end CPUs. They use Qarnot’s computing REST API to run batch applications on-demand, in parallel, and at scale. 

Our Computing Services

Qarnot also powers a fully-featured render farm dedicated to 3D rendering, Qarnot RenderDesigned for CG artists, Q | Render provides an  access to high-end processors and a user-friendly interface. Make rendering green again :


Achieved installations

Offices, BNP (WAI), Paris

Residential buildings, Paris

Offices, Grand Paris Aménagement

Offices, Intel, Stokholm

They trust us

They talk about us

We love innovation

Based in Paris, the Qarnot team counts 27 people. The company innovation has won several awards in national and international competitions.

See where you can meet the team at our next events.

About Us

Want to know more?

You are real estate developer or company, local authority, engineering company, architect, building owner ?

You want to know more about integrating Q.rads in your project?