Solvis GmbH
German manufacturer of modular hybrid heating systems combining heat pumps, solar thermal, photovoltaics and integrated hot-water technology.
Last updated September 29, 2026
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Overview
Solvis GmbH is a German heating-technology company based in Braunschweig. According to its official website, the company has been developing efficient hybrid heating systems based on renewable energies with integrated hot-water technology for more than 30 years. Its product philosophy centres on efficient heat storage and energy independence: Solvis systems are modular in design and are intended to grow with the changing needs of customers, and the company emphasises product quality "Made in Germany". The current product range is built around heat pumps, photovoltaics and complete heating systems that are described as "perfectly connected". Solvis markets hybrid heating systems that combine several energy sources and storage, and it highlights heat pumps that use the refrigerant R290. Alongside hardware, the company offers advisory and planning services: a free heating concept that customers can configure online and receive by e-mail including a subsidy calculation, and a free online information evening in which participants learn in about 90 minutes how to plan an efficient, future-proof heating system from home. Solvis also runs an in-person information evening in Braunschweig where it presents its heat-supply solutions and current funding options. A notable digital feature is the "SOLVIS Dokumenten KI", a chatbot that lets users search all Solvis documents. The website also guides customers through German subsidy programmes, noting that with a valid BzA (Bestätigung zum Antrag) a funding application can be submitted at current subsidy rates only until 20 July, after which 36 months remain for implementation. Solvis positions itself in the renewable-heating and building-energy market, competing with other European heat-pump and solar-thermal suppliers. Its identity is closely tied to Braunschweig, where both its operations and its customer information events are located. The company is privately held; no parent company or stock listing is indicated by the available evidence.
History
Solvis GmbH is a German heating-technology company located in Braunschweig. Its official website states that the company has been developing efficient hybrid heating systems with renewable energies and integrated hot-water technology for more than 30 years, which places its origins in the early 1990s, although the available evidence does not give an exact founding year. Over that period Solvis built its identity around heat storage and energy independence rather than around single-component products. The company's systems are modular, allowing a heating installation to be expanded as a customer's needs change, and the company stresses product quality "Made in Germany". In its current form the business addresses the energy transition in buildings. Its range combines heat pumps, photovoltaics and complete heating systems that the company describes as perfectly connected, and it promotes heat pumps using the refrigerant R290. Alongside the hardware, Solvis has developed service layers: a free heating-concept configurator that produces a plan and subsidy calculation by e-mail, a free online information evening, and an in-person information evening in Braunschweig. It has also introduced the "SOLVIS Dokumenten KI", a chatbot for searching all Solvis documents. The company also helps customers navigate German subsidy rules, for example advising that with a valid BzA (Bestätigung zum Antrag) a funding application can be submitted at current rates only until 20 July, with 36 months afterwards for implementation. Solvis remains a privately held German manufacturer; the evidence does not indicate any parent company or stock-market listing.
Company states it has been developing hybrid heating systems with renewable energies and integrated hot-water technology for over 30 years.
Launch of the SOLVIS Dokumenten KI chatbot for searching all Solvis documents.
Introduction of heat pumps using the refrigerant R290.
Free online heating-concept configurator with subsidy calculation offered to customers.
Regular in-person information evenings held in Braunschweig on heat-supply solutions and funding.
Products and positioning
Efficient, modular, future-proof hybrid heating systems with renewable energy and integrated hot-water technology, made in Germany.
SOLVIS hybrid heating systems
Modular hybrid heating systems combining renewable energy sources with integrated hot-water technology.
SOLVIS heat pumps (R290)
Heat pumps using the refrigerant R290, marketed as efficient and reliable.
Photovoltaics
Photovoltaic components integrated with the heating system.
Heat storage
Efficient heat storage as the core of the Solvis approach to energy independence.
SOLVIS Dokumenten KI
Chatbot for searching all Solvis documents.
Sources2 sources
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