Updated econet.markdown for climate updates (#16440)

Co-authored-by: Franck Nijhof <git@frenck.dev>
Co-authored-by: Franck Nijhof <frenck@frenck.nl>

source/_integrations/econet.markdown

@@ -2,6 +2,9 @@
 title: Rheem EcoNet Products
 description: Instructions on how to integrate Rheem EcoNet water heaters into Home Assistant.
 ha_category:
+  - Binary Sensor
+  - Climate
+  - Sensor
   - Water Heater
 ha_release: 0.61
 ha_iot_class: Cloud Push
@@ -16,6 +19,31 @@ ha_platforms:
   - water_heater
 ---
 
-The `econet` water heater platform is consuming the information provided by a [EcoNet enabled Rheem water heater](https://www.rheem.com/EcoNet/Home). This platform allows you to set the temperature, the operation mode, and away mode. It also provides access to several device sensors depending on your model of water heater.
+The EcoNet integration is consuming the information provided by a [EcoNet enabled Rheem water heater or thermostat](https://www.rheem.com/EcoNet/Home).
 
 {% include integrations/config_flow.md %}
+
+## Platforms
+
+EcoNet devices may be represented by one or more platforms.
+
+- [Binary Sensor](#binary-sensor)
+- [Climate](#climate)
+- [Sensor](#sensor)
+- [Water Heater](#water-heater)
+
+### Binary Sensor
+
+The EcoNet Binary Sensor platform lets you view binary states of sensors associated with your EcoNet thermostat or water heater. For example, if the device is currently running.
+
+### Climate
+
+The EcoNet Climate platform lets you control your EcoNet thermostat. Multi-zone HVAC systems will have 1 Climate entity per zone.
+
+### Sensor
+
+The EcoNet Sensor platform lets you view sensors associated with your EcoNet thermostat or water heater. For example, alert count or available hot water.
+
+### Water Heater
+
+The EcoNet Water Heater platform lets you control your EcoNet water heater. Water Heaters do not report the current water temperature.