The following lovelace view shows a card for all the valves (climate domain) the have a pi_heating_demand state attribute.
If you find a radiator to be too cold, you can check the valve’s opening and if it is relatively high, you probably need to purge your radiator and possibly add some pressure (/add water) to your system.
You need to install auto-entities and template-entity-row, both available through HACS.
- title: Radiateurs %
path: TRV_demands
badges: []
cards:
- type: custom:auto-entities
filter:
include:
- domain: climate
attributes:
pi_heating_demand: $$*
options:
type: custom:template-entity-row
state: '{{ state_attr(config.entity,''pi_heating_demand''), ''%'' }}'
exclude:
- state: unavailable
sort:
method: friendly_name
show_empty: true
card_param: entities
card:
type: entities
Sample:
There are more options that you can tweek to change the order, etc.