The Vitocal heat pump enables owners to heat their homes with carbon-neutral renewable energy. The monolithic shape of the newly designed outdoor unit blends into the architectural environment. Refined details such as the thin frame of the generous noise-optimized front grille and the convex-shaped top cover create a robust and durable design. Accessories for wall- and ground-mounting fully integrate all necessary connection pipes. The compact indoor unit introduces Viessmann's consistent design language to a new product category. Its high degree of technological integration reduces the space required by 60% and installation time by 90 minutes.