Project 63 News

News from Project 63

10 Nov 2025

Acoustic Database for Air2Water Heatpumps

An acoustic database for air-to-water heatpumps has been established in Task 2. A paper describing the database and a first exploitation will be presented at the Forum Acusticum Euronoise 2025 Conference in June 2025. Please find more information here: https://heatpumpingtechnologies.org/project63/database

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10 Nov 2025

Contributions to the 15th Heat Pump Conference 2026

We are submitting several abstracts to the upcoming conference in Vienna: Task 1 is going to present experimental results on several outdoor measurement campaigns. Task 2 will report on the continuous development and exploitation of the acoustic data base; Task 3 will present a study on human response to the...

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10 Nov 2025

Machine Learning-Based Prediction of Air Source Heat Pump Noise Annoyance

At Forum Acusticum Euronoise 2025 an IEA HPT Annex 63 Task 3 contribution will present a machine learning-based approach to predicting annoyance caused by ASHP noise emissions to address the complexity of human perception of noise by integrating psychoacoustic metrics, emotional responses, and demographic factors. Seven predictive models were evaluated,...

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10 Nov 2025

Internationalisation and enhancement of 1D acoustic visualization tool

In the framework of Task 4, the existing 1D tool of the Danish Energy Agency will be internationalized and enhanced by new features. The new tool is intended to be presented at the 15th Heat Pump Conference in Vienna 2026.

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10 Nov 2025

Study on Human Response to the Cumulative Impact of Air Source Heat Pump Noise

To the 15th IEA Heat Pump Conference, a contribution from IEA HPT Annex 63 Task 3 has been submitted, which will present a listening experiment that was conducted across seven European countries and ten sites to evaluate the cumulative impact of multiple Air Source Heat Pumps (ASHPs) in residential back gardens....

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11 Nov 2024

Sweden has joined HPT TCP Annex 63 "Placement Impact on Heat Pump Acoustics"

We are happy to announce that Sweden has formally joined IEA HPT Annex 63 in November 2024. We welcome our new participating country and look forward to working together and learning from Sweden heat pump projects related to Placement Impact on Heat Pump Acoustics.

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30 Oct 2024

Italy has joined HPT TCP Annex 63 "Placement Impact on Heat Pump Acoustics"

We are happy to announce that Italy has formally joined IEA HPT Annex 63 in October 2024. We welcome our new participating country and look forward to working together and learning from Italy on heat pump projects related to Placement Impact on Heat Pump Acoustics.

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30 Oct 2024

Switzerland has joined HPT TCP Annex 63 "Placement Impact on Heat Pump Acoustics"

We are happy to announce that Switzerland has formally joined IEA HPT Annex 63 in October 2024. We welcome our new participating country and look forward to working together and learning from Switzerland on heat pump projects related to Placement Impact on Heat Pump Acoustics.

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22 Jan 2024

The Netherlands have joined HPT TCP Annex 63 "Placement Impact on Heat Pump Acoustics"

We are happy to announce that the Netherlands have formally joined IEA HPT Annex 63 on January, 10th 2024. We welcome our new participating country and look forward to working together and learning from heat pump projects in the Netherlands related to Placement Impact on Heat Pump Acoustics.

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13 Nov 2023

France has joined HPT TCP Annex 63 "Placement Impact on Heat Pump Acoustics"

We are happy to announce that France has formally joined IEA HPT Annex 63 on November, 2nd 2023. We welcome our new participating country and look forward to working together and learning from France heat pump projects related to Placement Impact on Heat Pump Acoustics.

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News from Project 63

Acoustic Database for Air2Water Heatpumps

Contributions to the 15th Heat Pump Conference 2026

Machine Learning-Based Prediction of Air Source Heat Pump Noise Annoyance

Internationalisation and enhancement of 1D acoustic visualization tool

Study on Human Response to the Cumulative Impact of Air Source Heat Pump Noise

Sweden has joined HPT TCP Annex 63 "Placement Impact on Heat Pump Acoustics"

Italy has joined HPT TCP Annex 63 "Placement Impact on Heat Pump Acoustics"

Switzerland has joined HPT TCP Annex 63 "Placement Impact on Heat Pump Acoustics"

The Netherlands have joined HPT TCP Annex 63 "Placement Impact on Heat Pump Acoustics"

France has joined HPT TCP Annex 63 "Placement Impact on Heat Pump Acoustics"