Howto use versatile thermostat and scheduler to set desired temp at a time

[RastaChaum]

Hello everybody,

I use versatile thermostat with scheduler for a long time ago. It's really usefull. But there is a missing feature for me : when i schedule to pass the temp from 18⁰ to 20⁰ at 07:00am, i would like that the temp be at 20⁰ at this time. Not that it starting to heating.

Because of the type of heat, the diff between initial temp and target temp and the external temp, it could take from some minutes to some hours !

And so it's hard to anticipate with the scheduler at witch time to really start the heat. But with TPI algorithm i think that it could be possible.

Does anyone already do this ?
Do you think that it need a new specific scheduler integration ?

Thanks a lot for yours answers and helps !

[jmcollin78]

Hello, this has been requested so many times I cannot count them. But I cannot access to the Scheduler value to anticipate the change of preset. I have no solution for this.

[doubledrat]

hehe - this was going to be a future suggestion of mine! My nest thermostat does this. You say 'I want the temperature to be 20 at 07:30' and it works out based on outside temperature what time it needs to start heating to achieve this.

I think it would need a new custom scheduler integration

[RastaChaum]

Hi, Thanks a lot for you mr replies. I searched some threads of discussion about this feature on google, but i never found one... I probably not used the good terms. I have some programation notions, but i never watch how to developp on HA. It could be the time for it 😅. @jmcollin78 : do you think that i can get thermostat values from scheduler ? Or it is not permitted by HA ? Le mar. 11 févr. 2025, 12:10, doubledrat ***@***.***> a écrit :

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hehe - this was going to be a future suggestion of mine! My nest thermostat does this. You say 'I want the temperature to be 20 at 07:30' and it works out based on outside temperature what time it needs to start heating to achieve this. I think it would need a new custom scheduler integration — Reply to this email directly, view it on GitHub <#900 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AFAD25G5CH3EXUGCLFOLIXD2PHLEBAVCNFSM6AAAAABW3AIOUGVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTEMJTHEZDONQ> . You are receiving this because you authored the thread.Message ID: <jmcollin78/versatile_thermostat/repo-discussions/900/comments/12139276@ github.com>

[jmcollin78]

You will need an internal scheduler in the VTherm so that it could be aware of the next change. And developing a scheduler is something very hard. The HA Scheduler is perfect for this.

Then you will need the slope heating curve calculating by previous heating sessions to calculate how many minutes you have to anticipate. This is a research project itself.

What not simply change the setpoint earlier ? Is that not the best way to achieve what you wants ?

[jmcollin78]

Some issue example which aims to do the same: #792. The others are closed or in discussions or the franch HACF forum.