Floor heating

[mlynekg]

Hi
I would like to ask if you can help me with the code so that I can control the boiler in the range of 20-40 degrees Celsius
so that this project can be applied to a condensing boiler connected directly to the underfloor heating system.
is it enough to change:

float ophi = 40;
float oplo = 20;

anything else ?

kind regards

Grzegorz Młynek