Heating Plan with Window Contact Sensor

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Hi,

I have a thermostat and a window sensor. I am getting trouble when the window is open and a setpoint should be changed. In this case the thermostat might activate the heater because it does not consider the opened window.

I control the thermostat heating schedule with several rules like: when [its Monday or its Tuesday or its Wednesday or its Thursday or its Friday] and its 8:00 then set temp of heater_1 to 19.

Besides the schedule I lower the thermostat when the window is opened: when contact_sensor_1 is opened then set $bedroomLastHeatingSetpoint = $danfoss_1.temperatureSetpoint and set temp of danfoss_1 to 8.
And I increase the thermostat to the last saved setpoint with: when contact_sensor_1 is closed then set temp of danfoss_1 to $bedroomLastHeatingSetpoint.

One solution:
Single rules for the cases “window open” and “window closed”.

• when contact_sensor_1 is opened then set $bedroomLastHeatingSetpoint to 19
• when contact_sensor_1 is closed then set temp of danfoss_1 to 19

BUT this increases the number of rules too much, especially with many thermostats and window sensors.

Do you have any other idea to solve it?

I have a variabele called “BlockHeat”. the heater is not allowed to be turned on when the variable is not 0. When a door is opened the variable gets a “plus 1” (and when closed “minus 1”). When heating already on and the variable gets higher then 0, the heater is turned off.
So whatever outside action is, 1 variable gets changed, and the heater rules always checks the BlockHeat variable.