How to compare the target and measured temperature of FGT-001 in a condition

[EFE 0]

In a block scene, how can I express the following condition :

"If target temperature < measured temperature of my thermostat FGT-001, then switch on Boiler Device" ?

[cag014 731]

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Maybe something like that, marked red is target temperature, marked blue is your sensor temperature.

[akatar 208]

if it works, don't forget to create a scene to turn the boiler off

 

else in whole Belgium there is snow, exept around you're house.

 

why not use a common thermostat?

Edited November 13, 2019 by akatar

[cag014 731]

Yes, create another block scene to turn OFF the boiler when target temperature achieved.

We  don't need to contribute to global warming...

[EFE 0]

On 11/13/2019 at 7:03 PM, akatar said:

if it works, don't forget to create a scene to turn the boiler off

 

else in whole Belgium there is snow, exept around you're house.

 

why not use a common thermostat?

Because that means that only 1 central point determines the heating of all the house ...

Best regards,

On 11/13/2019 at 7:08 PM, cag014 said:

Yes, create another block scene to turn OFF the boiler when target temperature achieved.

We  don't need to contribute to global warming...

Of course

But I can solve that problem as soon as I have an answer to switch on the boiler.

Best regards,

On 11/13/2019 at 12:54 PM, cag014 said:

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That's all the problem : how can I refer to the measured temperature in the marked blue part ?

[akatar 208]

@EFE 

For several reasons i don't own/use a homecenter anymore, but can you see in homecenter if valve is open or close (heat or off)

(see picture how i see the thermostat)

 

so you want to heat every room separate in you're house?

why not use a dedicated system like honeywell evohome or plugwise (zigbee)

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[Kasper 0]

Well it can be done, and I did so.

 

The trick is that the thermostat valve has a Value and a TargetValue in its properties.

One scene will control the time you want the room to be heated up by turning up the temperature.

At that moment (when cold) the TargetValue (set temperature) is higher as the Value (measured temperature) and put a variable to "1"

A second scene will turn on the kettle following the variable at value "1" once the TargetValue reaches the Value the variable drops to "0" thus turning off the boiler.

 

In this way I control the study, bathroom and bedrooms at our upper floor independent from the lower. (Central heating system with radiators upstairs and under floor heating downstairs)