Wirmag
The solution for those who want to produce heat and hot water sustainably, environmentally friendly and cost-effectively.
| Date | Investors | Amount | Round |
|---|---|---|---|
$1.0m | Early VC | ||
| Total Funding | 000k | ||
| EUR | 2018 | 2019 |
|---|---|---|
| Revenues | 0000 | 0000 |
| % growth | - | 300 % |
| EBITDA | 0000 | 0000 |
| Profit | 0000 | 0000 |
| EV | 0000 | 0000 |
| EV / revenue | 00.0x | 00.0x |
| EV / EBITDA | 00.0x | 00.0x |
| R&D budget | 0000 | 0000 |
Source: Company filings or news article
Wirmag GmbH, operating through emiheizung.de, was established in 2017 by Lars Stevenson and Siegfried Schneider. The company focuses on the development and distribution of products for heat and cold generation, along with related consulting and project planning. The business targets both the renovation and new construction markets for single and multi-family homes, aiming to provide an alternative to traditional heating systems.
A significant milestone for Wirmag was securing a multi-million euro investment from Deutsche Wohnen, one of Europe's largest real estate companies, in 2019. This partnership was aimed at facilitating the market launch of Wirmag's primary product and enabling the energy-efficient renovation of Deutsche Wohnen's existing property portfolio. Public records indicate that as of 2024 and 2025, both Deutsche Wohnen SE and Vonovia SE are listed as shareholders. Founder Lars Stevenson was previously a co-founder and managing director at Ekomo GmbH, a company developing a similar induction-based heating product, before parting ways to establish Wirmag.
The company's core offering is the EMI-1 heating system, which it initially described as being based on a magnetocaloric principle to generate heat without fossil fuels. This patented system was promoted as being maintenance-free, easy to install, and environmentally friendly. It functions by using electricity to power the system, which then generates heat. However, discussions in public forums suggest the technology is more accurately described as a form of magnetic induction heating rather than a true magnetocaloric heat pump, which has led to debates about its actual efficiency compared to conventional electric boilers or heat pumps.
Keywords: electric heating, magnetocaloric, induction heating, heat generation, building technology, sustainable heating, energy efficiency, property renovation, cleantech, HVAC systems, fossil-fuel free, real estate technology, building services, Lars Stevenson, Deutsche Wohnen, Vonovia, EMI-1, heating systems, energy renovation, German startup