A very big database comparing a lot of relevant data can be found at https://www.eurovent-certification.com/ https://www.eurovent-certification.com/ I only use

A very big database comparing a lot of relevant data can be found at https://www.eurovent-certification.com/ https://www.eurovent-certification.com/ I only used it for air-to-air heatpumps (or air conditioners as they are sometimes called). He the data is oretty good. I can't say anything about the other types of heatpumps but I've found the database quite useful.