Hoval is drawing renewed attention to the engineered acoustic performance of its Belaria® pro heat pump range, reaffirming the system’s suitability for noise-sensitive environments such as residential developments, schools and healthcare facilities. To help readers experience its acoustic performance directly, Hoval has also released a short demonstration video to hear the heat pump operating in real conditions.

According to Hoval, the Belaria® pro was designed from the outset to address one of the biggest concerns in commercial and multi-residential projects: compliance with strict planning noise limits. The company emphasises that acoustic certainty has become a deciding factor in whether developments require mitigation, face redesign costs, or progress smoothly through planning. 

The Belaria® pro’s sound power levels, measured under controlled EN 12102 testing conditions, remain tightly managed across the model range. Declared sound-power values fall between 55-56 dB(A) depending on the model, with maximum daytime operating levels of 62-65 dB(A). These figures allow consultants and acoustic engineers to model installations with confidence, ensuring predictions aren’t influenced by environmental variable such as distance or installation layout.  

Hoval attributes the system’s quiet operation to deliberate engineering choices rather than output limitations. Features such as large evaporator surface, aerodynamically optimised fan blades, and internal construction designed to minimise structural vibration contribute to the unit’s low acoustic footprint. 

With projects increasingly located in dense urban areas, Hoval notes that a few decibels can make the difference between meeting compliance thresholds and requiring costly noise-control measures. The Belaria® pro aims to provide planners, consultants and developers with a predictable, specification-ready acoustic profile, supporting both performance and planning certainty. 

To find out more, visit: https://www.hoval.co.uk/en_GB/blog/how-quiet-is-the-belaria-pro