Hello Allan!
Eve Extend almost generates no heat. I do use 3 Eve Extend in my home, they don't even reach body temperature.
I would recommend placing Eve Extend close to the Eve Energy, the distance to your HomePod is not important at all.
Eve Extend connects to Eve Energy (and other Eve accessories upstairs) and uses Wi-Fi to connect to the router and this way to the iOS device and the HomePod. You need to have Wi-Fi coverage upstairs though. Best regards, volker
Apr 22, 2020