Danfoss Link™

Great program. Enjoying the hole system af Danfoss living very much. The only thing I need is that the Danfoss CC link (contoler box) can join a network with hidden SSID. Holidays schedule is the best feature in the app, beside heating schedule. The 5 star coming then my Danfoss CC link can join hidden SSID.

Provide a really good overview of temperature in all rooms and currently desired temperature including heating zone status (on/off).

Great app. Will be better if is possible to group several rooms in some kind of "floor" group and easily apply changes to a group and all rooms in a group.

I’m a big fan of the Danfoss link system. Unfortunately, the API is super-closed (so you cannot access+save your own data), and the app is pretty bad. Basically, it is a stripped-down version of the Central Controller (CC). From the app you can start/stop heating, but not for individual rooms/zones - it's all or nothing. In practice, this means that you normally must go to the CC anyway. In the app I can actually see the measured temperature from all the thermostats/room sensors in the house - and whether the individual rooms presently have active heating. But you cannot save or log the information. Although the data is available, there is no interface/API available. If for some reason you want to turn off heating in some rooms, while turning on heat in other rooms you will be out of luck. This cannot be done - neither from app nor CC. From the CC you can turn on (or off) heat in a number of rooms, but not both. From the app you can only start or stop heating in the entire building at once. For communication, the app contacts a Danfoss "cloud server", which then communicates with your CC in some "secure" (aka obscure) way. Expect things to break if Danfoss ever closes that service. Running an instance in a local cloud (under your own control) is out of the question. According to Danfoss, they do not store/save/log these data on their servers. I would rather keep the data in house (and store time series in a DB), but that cannot be done with this system (with or without the app). Obviously, Danfoss must have an API, but I am not allowed to get it. This app is "not compatible" with my Motorola running Android 8.1. I cannot see why, just "not compatible" in play store, so I cannot even try to install it on that device. Runs fine on Android 8.0 on a Samsung. Overall, the devices/hardware are great; The CC and app are so-so, and a useful interface (API) is simply not available.

I have to say it works but their new Ally system does not support the previous gen devices from Danfoss. Also, there is no history for temperature changes, which would be super useful for learning how to optimize home heating. I've invested $2000 into Danfoss Link system for my home heating just to find out that a year later they release Ally and now completely refuse to fix any problems in the old system. This is not a smartphone which you change every couple of years, it is home-maintenance devices which are supposed to work at least a decade or more and save you money. But if you deprecate the old system every few years it will never be economically justified to invest into Danfoss systems. Why should I pay premium price for Danfoss if I could go with something 4 times cheaper from All Express?