Semi-anechoic chambers (also called hemi-anechoic chambers) provide a controlled acoustic environment similar to full anechoic rooms but with a solid, non-absorptive floor. This makes them ideal for testing larger or floor-mounted equipment—such as air source heat pumps, HVAC systems, or domestic appliances—without the need for a raised, suspended floor.

These chambers are commonly used for acoustic performance testing, regulatory compliance, and sound power measurements, with every aspect tailored to the type of equipment under test. For example, testing a heat pump may require:

• Silent ventilation to manage airflow without interfering with results

• Climate control to maintain consistent temperature and humidity

• Control and monitoring systems for reliable test data

• Integrated safety alarms, including sounders and visual beacons

• Custom lighting and internal layouts for visibility and ease of operation

Each chamber is designed around your specific testing needs, ensuring accurate, repeatable results in a safe and efficient environment. Proper planning and system integration are key to maximising test quality and usability.