Sterowanie pompą solara- różnica temperatury

[Vladimir]

I do not speak Polish, but I think that this is the same what I need. Can you please give us information when we can expect the new version with this function? Is there some possibility to make change in program directly by me?
I need to read temperatures from two sensors (solar collector + heat exchanger) compare it and if T1 is bugger then T2 switch on output (circular pump)