Prometheus generates "could not convert" error messages for heaters

[runningman84]

Home Assistant release with the issue:
0.102.1

Last working Home Assistant release (if known):
none

Operating environment (Hass.io/Docker/Windows/etc.):
docker

Integration:
homematic / prometheus

Description of problem:
The prometheus export should just ignore this sensor or value. It could also just store the temperature instead of the mode of operation...

Problem-relevant configuration.yaml entries and (fill out even if it seems unimportant):

prometheus:
  namespace: hass
homematic:
  interfaces:
    wireless:
      host: 192.168.178.123

Logs (if applicable):

2019-11-24 15:24:27 WARNING (SyncWorker_2) [homeassistant.components.prometheus] Could not convert <state climate.neq1413228=heat; hvac_modes=['auto', 'heat', 'off'], current_temperature=22.4, min_temp=4.5, max_temp=30.5, target_temp_step=0.5, temperature=20.0, preset_mode=None, preset_modes=['boost', 'comfort', 'eco'], battery=2.8, rssi_peer=-69, valve=0, mode=Manual, id=NEQ1413228, interface=wireless, friendly_name=Thermostat Arbeitszimmer, supported_features=17 @ 2019-11-24T15:23:19.162086+01:00> to float

Additional information:

[bojleros]

I get similar errors with components.eq3btsmart.climate:

2019-11-27 19:32:56 WARNING (SyncWorker_14) [homeassistant.components.prometheus] Could not convert <state climate.bawialnia=auto; hvac_modes=['heat', 'off', 'auto'], current_temperature=23.0, min_temp=5.0, max_temp=29.5, temperature=23.0, preset_mode=None, preset_modes=['boost', 'away'], away_end=None, is_locked=True, low_battery=True, valve=69, window_open=False, friendly_name=bawialnia, supported_features=17 @ 2019-11-26T22:09:58.730866+01:00> to float

[balloob]

Climate entities should be ignored.