The Vitocal 200-A air-source heat pump for indoor installation has an extremely compact design. Measuring just 700 x 800 mm in width and length, it takes up very little space. Its monoblock technology allows for easy handling and quick installation. Furthermore, a variable-speed fan and compressor with multiple anti-vibration mounts ensure low operating noise. Last but not least, it can be optimally combined with a mechanical ventilation unit, providing both heat and fresh air.