What is MCS 020 noise assessment and what the requirements?

MCS 020 noise assessment is a simple test we use to check your heat pump won't be too loud to your neighbor's nearest 'habitable' window, which is a room where people live or sleep. It's part of the Microgeneration Certification Scheme (MCS), which certifies renewable energy products and installers. The aim is to make sure heat pump noise doesn't cause a disturbance.