Let HA do something but not always

Hopefully I am in the richt category. I am new to Home Assistant and I want to use it to manipulate our heatpumpboiler. It has two temperatures: the current temperature and the goal temperature. The boiler uses the electric element if the current temperature and the goal temperature are too far apart. It would then take too much time to heat it with the heatpump and therefor it uses the electric element. however, I do’t care if it takes a long time. I have noticed that a difference of 10 degrees is still ok,. So if the difference is more than 10 degrees, I lower the goal temperature and increase that again manually when te current temperature creeps up to the goal temperature. I know I can automate this with HA (that is, I did not do this yet but found tutorials on how to) but the problem is that this only occurs once a week and not on the same day every week (I prefer to run it when the sun shines (solar panels). How can I make sure that the tihing I create for this only runs when I want it to (no problem activating it by hand). is that possible?

If a switch on a dashboard would be a solution then you can create a Toggle Helper (aka Input Boolean), and put that on a dashboard.

Then when you build your automation include a check on its state as a condition (“And If” in the English UI, the middle section of the automation), to say “only continue if this dashboard switch is on”.

okay so if I understand you correctly (I have not build all of this yet) I can define a boolean on the dashboard wich I manuually can switch to TRUE (or whatever it will work with) if I want the automation to run? And put it back to FALSE when it is done?

Yes, exactly that.

thank you very much!