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# based on feedback in: https://github.com/somm15/PyViCare/issues/238
# gas burner and if device has roles "type:heatpump", "type:E3"
def heat_curve_formular_variant1(delta, inside, shift, slope):
target_supply = (inside + shift - slope * delta
* (1.4347 + 0.021 * delta + 247.9
* pow(10, -6) * pow(delta, 2)))
return target_supply
# heatpump has roles "type:heatpump" and with single circuit
def heat_curve_formular_variant2(delta, inside, shift, slope):
target_supply = (inside + shift - slope * delta
* (1.148987 + 0.021 * delta + 247.9
* pow(10, -6) * pow(delta, 2)) + 5)
return target_supply
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