Is your feature request related to a problem? Please describe.
When using a whirlpool as a heating device (e.g. Lay-Z Spa), the progress bar shows the current temperature (e.g. 36°C) relative to the target temperature (39°C) as a filled bar — without any numeric values directly on the bar. The bar always starts at 0% regardless of a minimum temperature, making it difficult to read the actual temperature progress at a glance.
Describe the solution you'd like
Make the Min/Max range of the bar configurable (e.g. Min: 20°C, Max: 45°C)
The bar fills from Min to Max — the current temperature is shown as an indicator within this range
Display temperature values directly on the bar: Min value on the left, Max value on the right, current temperature at the indicator position
Show the target temperature as a visible marker on the bar
Describe alternatives you've considered
Displaying current temp / target temp as simple text below the bar (e.g. 36°C / 39°C) would already be an improvement over the current state.
Additional context
Module/Area: UI / Loadpoint / Heating Device
EVCC Version: v0.306.0
Device: Lay-Z Spa whirlpool as heating device with chargerFeatureHeating: true

Is your feature request related to a problem? Please describe.
When using a whirlpool as a heating device (e.g. Lay-Z Spa), the progress bar shows the current temperature (e.g. 36°C) relative to the target temperature (39°C) as a filled bar — without any numeric values directly on the bar. The bar always starts at 0% regardless of a minimum temperature, making it difficult to read the actual temperature progress at a glance.
Describe the solution you'd like
Make the Min/Max range of the bar configurable (e.g. Min: 20°C, Max: 45°C)
The bar fills from Min to Max — the current temperature is shown as an indicator within this range
Display temperature values directly on the bar: Min value on the left, Max value on the right, current temperature at the indicator position
Show the target temperature as a visible marker on the bar
Describe alternatives you've considered
Displaying current temp / target temp as simple text below the bar (e.g. 36°C / 39°C) would already be an improvement over the current state.
Additional context
Module/Area: UI / Loadpoint / Heating Device
EVCC Version: v0.306.0
Device: Lay-Z Spa whirlpool as heating device with chargerFeatureHeating: true