How reliable is the connection to my heat pump? I've read about other systems constantly losing contact.

Connection stability was one of our primary engineering goals, precisely because we've seen how frustrating the alternatives can be. Third-party cloud integrations that randomly disconnect. API tokens that expire. Manufacturer cloud services that go down for days.

Alva Link avoids these problems by connecting directly to your devices over local protocols — not through a manufacturer's cloud. The communication between Link and your heat pump happens on your own home network (or over a direct RS-485 cable). There's no intermediary server, no third-party API, no dependency on Panasonic's cloud or NIBE's cloud or anyone else's cloud.

If the manufacturer changes their cloud API, that's irrelevant. Your Link talks directly to the hardware over standardized industrial protocols (Modbus) that have been stable for decades.