core/homeassistant/components/weheat/icons.json

{
  "entity": {
    "sensor": {
      "power_output": {
        "default": "mdi:heat-wave"
      },
      "power_input": {
        "default": "mdi:lightning-bolt"
      },
      "cop": {
        "default": "mdi:speedometer"
      },
      "water_inlet_temperature": {
        "default": "mdi:thermometer"
      },
      "water_outlet_temperature": {
        "default": "mdi:thermometer"
      },
      "ch_inlet_temperature": {
        "default": "mdi:radiator"
      },
      "outside_temperature": {
        "default": "mdi:home-thermometer-outline"
      },
      "dhw_top_temperature": {
        "default": "mdi:thermometer"
      },
      "dhw_bottom_temperature": {
        "default": "mdi:thermometer"
      },
      "heat_pump_state": {
        "default": "mdi:state-machine"
      },
      "electricity_used": {
        "default": "mdi:flash"
      }
    }
  }
}