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Double-combustion wood pellet outdoor heaters

September 2020
Gallery Edelsun 1
Gallery Edelsun 1


With Edelsun outdoor heating, bars, hotels and restaurants can offer warmth, comfort and style to their customers for only 2€ per hour, while taking a step towards a CO2 neutral world.

Showcasing bars and restaurants, terraces are the first contact with customers, pushing them to sit down or leave. It is also an additional sales space that must be optimized by offering comfort to customers. For these two reasons, the development and installation of heating systems for terraces have exploded in recent years. However, today's heating systems are veritable energy chasms and emit a significant amount of CO2. To meet this challenge, Edelsun offers an alternative by using wood pellets as fuel to provide a local, renewable and CO2 neutral heating system. Thanks to its design allowing the customer to admire the beautiful flames, Edelsun's product can quickly become a competitive advantage, attracting customers while keeping them warm at a lower environmental cost. Its specific double combustion technology generates 5 hours of heat with only 10 kg of pellets while producing only 40 grams of ash.

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Label Date September 18, 2020
By Edelsun
From Switzerland
Maturity stage Small scale commercialization
Looking For Network, Funding, Credibility

Implementation Stories

Edelsun by Edelsun
Implemented by Le Prestige Bar in Neuchatêl (Switzerland) in 2019

Le Prestige Bar in Neuchâtel decided in autumn 2019 to equip its terrace with Edelsun patio heaters, as the municipality of Neuchâtel only allows devices that run on renewable energy. It started by installing 4 units before gradually equipping his 250 m2 terrace with 15 of heaters.


By using Edelsun heaters instead of gas heaters on a 250 m2 terrace since 2019, their customer has saved more than 240 tons of CO2.


The environmental benefits

  • Reduces CO2 emissions by 75% compared to conventional solutions
  • Almost complete combustion : only 6 mg/m3 including ignition time et 40 g of ash from the 10 kg of wood pellets used

The Financial benefits

  • Increases the use of the terrace by almost 50%
  • Only 2 € per hour of operation counting compared to 3 € for gas systems
  • 775 hours of operation per year - 2 years depreciation

Activity Region

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  • Headquarters
  • Activity

Company Profile


Edelsun designs environmentally friendly outdoor heaters with very high efficiency

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Headquarters 1260 Nyon, Switzerland

Networking Partner


As an expert for the innovation scene in energy and environmental technologies, CleantechAlps (Sion, Switzerland) is a hub for the cleantech ecosystem, connecting its stakeholders with relevant partners.

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Solutions Associated 65
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The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances. The innovator Edelsun has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.