Thank you Did67 for this answer. Dirk pitt can you tell me how you find 64.1?
And why the setpoint does not enter the calculation?
Unless I do not understand everything ;-)
Thank you very much.
Philippe.

And while I am there, I will also like to understand the role of the minimum water temperature in the calculation of the flow temperature. If we increase this min T ° we increase the starting t °? This is the parallel?
Goods.
Philippe.

Thank you it's true that in the second I preferred English
Aie aie ... The maths and me ... on the ordinate at the origin I find 50.83 and not 64.1, there's something I did not get it?
And the set temperature does not enter the formula?
Phil.

Dirk, I'm not very good at math ... Can you give me the calculation formula to find the theoretical water T ° from these values: [A] = -10 (mini winter t °) [ B] = 79 (t ° of water at -10) [C] = 19 (t ° min summer) [D] = 36 (t ° of water for 19 °) [F] = 20 (t ° no heating) [G] = 25 (t ° min ...

Super tool thank you!
Can I change the setpoint temperature to 19 °? The cells are protected ...
The current foot is the minimum temperature of the water and not the temperature of the water required for 20 °
Sorry if my question seems stupid to you ;-)

Thank you for this new return I spent a good part of the afternoon yesterday in front of the beast. It was there that I noticed that the v3v was in the middle (so it could send more) but that the indoor temperature had not risen to 19 ° since the morning ... As if the heating curve did not was not enough ...

12 ° outside and here is the boiler that has trouble reaching the set 19 ° inside ... I go back the curve? It seems to you a lot of water at 36 ° requested for 20 ° ext?

36 ° curve for 20 ° and 79 ° for -15 °?

Dirk pitt, I have already lowered the circulator to minimum and I am quite happy with the result ... I now set parameter 12 to 60 °. Did 67, the minimum temperature is 34 ° Is it good? What do you think is the "tricky" parameter that should not be limited too low? (HT? I set it at 80 °) ...

Thank you

What do you recommend to me as a first modification?
To lower the nominal temperature to 70 °?

Dirk, Did37, Thanks for your answers. Dirk, yes it is the parameter 12 that I had modified. For the other parameters on page 27, I have: 14 = 74 ° 15 = 83 ° 16 = 1.0 17 = 100.0 Yes I have an outdoor T ° sensor, I also have the interior thermostat. As soon as I have time to open the beast, I will ...