A2WHP for the masses

[Joeboy]

https://www.pv-magazine.com/2025/05/20/ ... n-germany/

[MikeNovack]

https://www.pv-magazine.com/2025/05/20/ ... n-germany/

Remember, touting high CoP when only one of the temperatures is specified is meaningless. So it's an immediate red flag for me when what is essentially an "ad" just gives one temp (not even saying if that's in or out at that). Similarly something like "works down to -25C" means little unless the CoP given.You can't tell if a CoP is good (close to theoretical) or awful (a small fraction of theoretical) without knowing the temps (those define the theoretical)

[Joeboy]

https://www.pv-magazine.com/2025/05/20/ ... n-germany/

Remember, touting high CoP when only one of the temperatures is specified is meaningless. So it's an immediate red flag for me when what is essentially an "ad" just gives one temp (not even saying if that's in or out at that). Similarly something like "works down to -25C" means little unless the CoP given.You can't tell if a CoP is good (close to theoretical) or awful (a small fraction of theoretical) without knowing the temps (those define the theoretical)

It's all just ads. How can the masses know unless awareness is raised? I surmise that folk should walk into an IKEA (Germany) store or follow the online trail for detailed specs. This is a good thing and there are no red flags.