Lytefire Sauna

Making wellness inspring and sustainable




Join our development of solar powered saunas to make wellness awesomely inspiring and sustainable!

The project aims to spread awareness on solar thermal energy and its many diverse uses. The solar sauna is a sustainable alternative for eco-conscious people and makes Lytefire technology approachable to a broader audience.

This weekend we are exibiting the solar sauna "Aurinko 1" prototype for the first time to the public. It will be in front of the Arflina Hotel on Heuberge. You can’t miss it if you take the shuttle-bus up the moutain. In any case, contact us if you want to visit!

Project Milestones

Summer 2020

Construction of a large solar sauna integrated into the Heuberge resort.

March 2020

Construction and first use of an advanced solar sauna prototype based on the learnings of the first version built in February.

10-16th of February 2020

We are working on launching the crowdfunding campaign. On Saturday we are exhibiting the solar sauna on Heuberge. Contact us if you want to visit!

8-9th of February 2020

The first test of the solar sauna shows an immediate success of solar steam experience and necessary cool-down jumps into the surrounding snow.

1st to 7th of February 2020

Eerik and Urs build a solar sauna prototype at Heuberge’s workshop at 2000 meter altitude. To minimize the footprint of the operation, the wood and materials are recycled from a former electric sauna that was not in use anymore.

22 of January 2020

Heuberge owners Sara and Henrick show up at Lytefire co-founder Urs’ farm in Solothurn Switzerland, to pick up a solar concentrator and bring it to the moutain resort.

13-16th of January 2020

At Heuberge Ecologic Forum, hosted by Heuberge in collaboration with Circular Economy Transition, our Solar Sauna partnership is formed to bring to life this idea!

Latest Stories


Solar Sauna Campaign

65 € raised

233 000 € Goal

Be the first to experience the sauna, get the construction plan or help making it happen. See below for awesome ways to get involed.

Get an original Sauna Rock

The sauna rocks used for the first tests of the solar sauna.

Solar Pass 1-2 Persons

Come to Heuberge, stay for the night and get exclusive use of the Solar Sauna!

Solar Pass 3-5 Persons

Come to Heuberge, stay for the night and get exclusive use of the Solar Sauna!

Solar Sauna Group Day

Come and spend a day with the solar sauna with your group. Includes 2 overnight stays for the entire group!

The day starts with roasting and brewing solar coffee, followed by a solar energy workshop, solar lunch cooking and then sauna instruction and use in the afternoon.

In the evening enjoy a delicous fondue at Heuberge Hotel.

Solar Sauna Construction Kit

Get the solar sauna construction plans and build tutorials to build your own solar sauna!

Aurinko 1 - Prototype

Buy the original solar sauna prototype built in February 2020.

Questions / Contact



Support entrepreneurs willing to go solar. They need you.

Lytefire solar concentrators can replace firewood, charcoal and fossils.
The solar concentrator enables income-generating activities for entrepreneurs.

Who are you going to support today?

Solar Bakery in Rural Burkina Faso

Support a rural bakery switching from daily firewood burning to clean solar energy.

Women Empowerment in Burkina Faso

Crowdfund a local solar bakery owned by the Ghoghin Women’s Group. They want to improve livelihoods and reduce emissions.

Video: How We Support Entrepreneurs

Check our 2min video showing how we are supporting entrepreneurs to make their living with clean energy.