Consumer review group Stiftung Warentest compares air/water heat pumps: The winner is Viessmann’s Vitocal 250-A

The Vitocal 250-A has now emerged from a Stiftung Warentest comparison as the best air/water heat pump. This innovative unit thus underscores Viessmann's technology leadership and high quality standards.
Allendorf (Eder), September 28, 2023 – Efficient, climate-friendly, especially quiet and well-suited for modernization – the Vitocal 250-A air/water heat pump has it all. And it’s the best of its kind: The innovative heat pump came out the clear winner in the recently published test by Stiftung Warentest, garnering an overall rating of “GOOD” (2.1).