# $400K raised! Thank you to 320+ investors who have backed us so far 🔥 | Airthium (YC S17)

- Canonical URL: https://wefunder.com/feed/371842
- Entity ID: wefunder:feed_item:371842
- Published at: 2026-08-20 17:27:20 UTC
- Updated at: 2026-08-20 17:27:26 UTC

## Author
Franck Lahaye

## Subject
Airthium (YC S17)

## Content
We just crossed $400,000 raised on Wefunder from 320+ investors in this new round! Andreï and I want to take a moment to say THANK YOU and share what that means to us.We believe factories should not have to choose between cutting emissions and cutting energy costs. Airthium is building a new way to produce industrial heat that is both cleaner and cheaper than gas. VCs including DCVC, Daphni, and Y Combinator, along with more than 2,700 Wefunder investors, are backing us in that mission.Factories spend about $1.2 trillion a year on heat, and carbon rules get stricter every year. Whoever sells clean heat for less than gas wins a giant market. We’re laser focused on winning this trillion dollar question because the future of our planet depends on it. Whether you’re a first-time investor in Airthium or have doubled or tripled down, we are so grateful to each of you for your support and belief in the mission of Airthium and what we are building. Here is why some of you decided to back us:💬 "I invested in Airthium during their funding round in 2022. In the past four years, they have grown tremendously. They expanded their team, built out an enviable lab, and have shown incremental progress in developing their engine. I have confidence that this team will build their 10kW / 200C engine for the pilot study." -Jason Stevens💬 "I'm excited about Airthium because I like the concept of reducing the use of fossil molecules in heat and giving an option to arbitrage between gas and electricity." -Frederic Andre💬 "Excited about a company that has such a clear eyed plan on how to not only decarbonize major industrial processes, but to do it more cheaply than can be done now. This is my second investment Airthium." -Michal Todorovic💬 "Airthium seems to be heading in the right direction. Most importantly, Andrei's straightforward answers to difficult Qs have generated the trust needed to invest at this early (and risky) stage of the process." -Mínelson Medina-Ríos💬 "This is the third time I have invested in Airthium. Airthium seems to have a perfect solution that could make a very real difference in the world we pass on to our children and grandchildren." -Richard RowbothamThank you again to everyone who has helped us get this far. To everyone still on the fence, now is the time to invest in the future of cleaner, cheaper industrial heat 🔥