Sales and service of heating systems of all kinds, including trade in goods for heating systems. Sales and service of pool systems. Execution of installation work of all kinds, in particular in the field of building technology. Operation of a children's playgroup with a special focus on nature and animals; conducting creative workshops for all age groups. The company may establish branches and subsidiaries in Switzerland and abroad, participate in other companies in Switzerland and abroad, acquire, encumber, sell and manage real estate in Switzerland and abroad, provide financing for its own account or for third-party account, as well as grant guarantees and sureties for subsidiaries and third parties.