Dutch utility testing 'silent' residential heat pumps

Dutch utility Eneco is testing low-noise air-to-water heat pumps from startup Whspr in around 20 homes, aiming to ease installation constraints near property boundaries. The systems reportedly achieve coefficients of performance of up to 5 and show up to 80% noise reduction in laboratory testing.Dutch utility Eneco has begun testing an"innovative" type of air-to-water heat pump with low sound levels in residential buildings. The company said conventional heat pumps rely on outdoor units that emit a constant hum, requiring installations several metres from property boundaries under Dutch building ...

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