This is arguably included in the...
Bruge en pokkers masse tid på at læse om Linux og derefter få en Raspberry Pi til at klare ihvertfald noget af det
...alternative but I mention it anyway because I don't think the web interface is slow when using PellMon...
PellMon is a free, opensource program that does most of the things stokerkontrol does, and quite a lot of things stokerkontrol doesn't. It runs very well on a raspberry pi (no problems whatsoever with cpu and memory capacity), or mostly any other computer with linux. The complete installation instructions are here: https://github.com/motoz/PellMon/wiki/H ... ll-PellMon
, which can seem daunting if you have no previous linux experience, but the installation consists mainly of copy-pasting the commands listed so it's not that hard.
PellMon's webinterface looks like this viewed on a PC:
On a mobile or tablet it rearranges itself to fit the smaller screen, so no zooming is necessary.
You get a live systemimage (that can be freely edited with a free drawing program), live event view, bar charts with consumption statistics, access to most settings (all useful ones at least), data retained for the last 15 years and email alarms and complete source code to do what you want with...
You don't get access to stokercloud (of course) but you might not need it. PellMon serves it's webinterface from your own computer so you don't have to push your data to the 'cloud' to be able to access it, this comes with the price that you have to set up outside access to your network if you want that.
Hope this helps, PellMon obviously is not for everyone, but every user I have heard from tend to be very satisfied
(I'm one of the authors)