Climate

Watts Vision +

watts

Built inCloud pollingPlatinum

The Watts Vision + integration enables seamless control of your heating zones directly from Home Assistant.

In Apple Home through HomeKit Bridge

What HomeKit Bridge makes of each kind of entity this integration creates, read from its source code. A device only gets the ones that apply to it.

Entity	Shows up as	Note
`switch`	Switch or outlet
`climate`	Thermostat

What people report

Watts Vision+ thermostats and receivers work via the cloud. Relay modules paired as heaters on the gateway cannot be seen as switches.

Works11
Won’t be supported1

Device	In Home Assistant	What they said	Source
Watts Vision BT-A02-RF	Works Cloud	Listed as supported in the docs Saved copy Supported devices: BT-CT03-RF; BT-ST03-RF; BT-DP02-RF; BT-D03-RF; BT-A02-RF; BT-A03-RF; BT-TH02-RF; PR03-RF; PR03-RF16; BT-WR03-RF; BT-WR02-RF. Limitations: BRT-WR02-RF devices paired as heaters are not exposed as separate switch entities in Home Assistant. When a BRT-WR02-RF is paired as a heater on the gateway, the firmware merges it with the thermostat into a single heater entity. Only BRT-WR02-RF devices paired as standalone switches on the gateway appear as switch entities. Excerpt saved from home-assistant.io on 2026-10-23.	Docs
Watts Vision BT-A03-RF	Works Cloud	Listed as supported in the docs Saved copy Supported devices: BT-CT03-RF; BT-ST03-RF; BT-DP02-RF; BT-D03-RF; BT-A02-RF; BT-A03-RF; BT-TH02-RF; PR03-RF; PR03-RF16; BT-WR03-RF; BT-WR02-RF. Limitations: BRT-WR02-RF devices paired as heaters are not exposed as separate switch entities in Home Assistant. When a BRT-WR02-RF is paired as a heater on the gateway, the firmware merges it with the thermostat into a single heater entity. Only BRT-WR02-RF devices paired as standalone switches on the gateway appear as switch entities. Excerpt saved from home-assistant.io on 2026-10-23.	Docs
Watts Vision BT-CT03-RF	Works Cloud	Listed as supported in the docs Saved copy Supported devices: BT-CT03-RF; BT-ST03-RF; BT-DP02-RF; BT-D03-RF; BT-A02-RF; BT-A03-RF; BT-TH02-RF; PR03-RF; PR03-RF16; BT-WR03-RF; BT-WR02-RF. Limitations: BRT-WR02-RF devices paired as heaters are not exposed as separate switch entities in Home Assistant. When a BRT-WR02-RF is paired as a heater on the gateway, the firmware merges it with the thermostat into a single heater entity. Only BRT-WR02-RF devices paired as standalone switches on the gateway appear as switch entities. Excerpt saved from home-assistant.io on 2026-10-23.	Docs
Watts Vision BT-D03-RF	Works Cloud	Listed as supported in the docs Saved copy Supported devices: BT-CT03-RF; BT-ST03-RF; BT-DP02-RF; BT-D03-RF; BT-A02-RF; BT-A03-RF; BT-TH02-RF; PR03-RF; PR03-RF16; BT-WR03-RF; BT-WR02-RF. Limitations: BRT-WR02-RF devices paired as heaters are not exposed as separate switch entities in Home Assistant. When a BRT-WR02-RF is paired as a heater on the gateway, the firmware merges it with the thermostat into a single heater entity. Only BRT-WR02-RF devices paired as standalone switches on the gateway appear as switch entities. Excerpt saved from home-assistant.io on 2026-10-23.	Docs
Watts Vision BT-DP02-RF	Works Cloud	Listed as supported in the docs Saved copy Supported devices: BT-CT03-RF; BT-ST03-RF; BT-DP02-RF; BT-D03-RF; BT-A02-RF; BT-A03-RF; BT-TH02-RF; PR03-RF; PR03-RF16; BT-WR03-RF; BT-WR02-RF. Limitations: BRT-WR02-RF devices paired as heaters are not exposed as separate switch entities in Home Assistant. When a BRT-WR02-RF is paired as a heater on the gateway, the firmware merges it with the thermostat into a single heater entity. Only BRT-WR02-RF devices paired as standalone switches on the gateway appear as switch entities. Excerpt saved from home-assistant.io on 2026-10-23.	Docs
Watts Vision BT-ST03-RF	Works Cloud	Listed as supported in the docs Saved copy Supported devices: BT-CT03-RF; BT-ST03-RF; BT-DP02-RF; BT-D03-RF; BT-A02-RF; BT-A03-RF; BT-TH02-RF; PR03-RF; PR03-RF16; BT-WR03-RF; BT-WR02-RF. Limitations: BRT-WR02-RF devices paired as heaters are not exposed as separate switch entities in Home Assistant. When a BRT-WR02-RF is paired as a heater on the gateway, the firmware merges it with the thermostat into a single heater entity. Only BRT-WR02-RF devices paired as standalone switches on the gateway appear as switch entities. Excerpt saved from home-assistant.io on 2026-10-23.	Docs
Watts Vision BT-TH02-RF	Works Cloud	Listed as supported in the docs Saved copy Supported devices: BT-CT03-RF; BT-ST03-RF; BT-DP02-RF; BT-D03-RF; BT-A02-RF; BT-A03-RF; BT-TH02-RF; PR03-RF; PR03-RF16; BT-WR03-RF; BT-WR02-RF. Limitations: BRT-WR02-RF devices paired as heaters are not exposed as separate switch entities in Home Assistant. When a BRT-WR02-RF is paired as a heater on the gateway, the firmware merges it with the thermostat into a single heater entity. Only BRT-WR02-RF devices paired as standalone switches on the gateway appear as switch entities. Excerpt saved from home-assistant.io on 2026-10-23.	Docs
Watts Vision BT-WR02-RF	Works Cloud	Listed as supported in the docs Saved copy Supported devices: BT-CT03-RF; BT-ST03-RF; BT-DP02-RF; BT-D03-RF; BT-A02-RF; BT-A03-RF; BT-TH02-RF; PR03-RF; PR03-RF16; BT-WR03-RF; BT-WR02-RF. Limitations: BRT-WR02-RF devices paired as heaters are not exposed as separate switch entities in Home Assistant. When a BRT-WR02-RF is paired as a heater on the gateway, the firmware merges it with the thermostat into a single heater entity. Only BRT-WR02-RF devices paired as standalone switches on the gateway appear as switch entities. Excerpt saved from home-assistant.io on 2026-10-23.	Docs
Watts Vision BT-WR03-RF	Works Cloud	Listed as supported in the docs Saved copy Supported devices: BT-CT03-RF; BT-ST03-RF; BT-DP02-RF; BT-D03-RF; BT-A02-RF; BT-A03-RF; BT-TH02-RF; PR03-RF; PR03-RF16; BT-WR03-RF; BT-WR02-RF. Limitations: BRT-WR02-RF devices paired as heaters are not exposed as separate switch entities in Home Assistant. When a BRT-WR02-RF is paired as a heater on the gateway, the firmware merges it with the thermostat into a single heater entity. Only BRT-WR02-RF devices paired as standalone switches on the gateway appear as switch entities. Excerpt saved from home-assistant.io on 2026-10-23.	Docs
Watts Vision PR03-RF	Works Cloud	Listed as supported in the docs Saved copy Supported devices: BT-CT03-RF; BT-ST03-RF; BT-DP02-RF; BT-D03-RF; BT-A02-RF; BT-A03-RF; BT-TH02-RF; PR03-RF; PR03-RF16; BT-WR03-RF; BT-WR02-RF. Limitations: BRT-WR02-RF devices paired as heaters are not exposed as separate switch entities in Home Assistant. When a BRT-WR02-RF is paired as a heater on the gateway, the firmware merges it with the thermostat into a single heater entity. Only BRT-WR02-RF devices paired as standalone switches on the gateway appear as switch entities. Excerpt saved from home-assistant.io on 2026-10-23.	Docs
Watts Vision PR03-RF16	Works Cloud	Listed as supported in the docs Saved copy Supported devices: BT-CT03-RF; BT-ST03-RF; BT-DP02-RF; BT-D03-RF; BT-A02-RF; BT-A03-RF; BT-TH02-RF; PR03-RF; PR03-RF16; BT-WR03-RF; BT-WR02-RF. Limitations: BRT-WR02-RF devices paired as heaters are not exposed as separate switch entities in Home Assistant. When a BRT-WR02-RF is paired as a heater on the gateway, the firmware merges it with the thermostat into a single heater entity. Only BRT-WR02-RF devices paired as standalone switches on the gateway appear as switch entities. Excerpt saved from home-assistant.io on 2026-10-23.	Docs
Watts BRT-WR02-RF paired as heater	Won’t be supported Cloud	Not exposed as switch when paired as heater; only standalone switches appear Saved copy Hey @FreekVR In this configuration, BRT-WR02-RF devices are paired as heaters on the gateway, so it is not possible to see them as switches in Home Assistant. Only devices paired as switches on the gateway are exposed as such in Home Assistant. This is a system design choice: the BT-WR02-RF and BT-D03-RF are merged into a single heater entity by the firmware, which means they cannot be exposed separately to the backend or Home Assistant However, this should not be limiting for what you want to do: - We will improve the integration to expose the heating status. The states will be "heating," … Excerpt saved from GitHub on 2026-10-23.	Issue #165811 · 2026-03

Gathered from GitHub issues, pull requests, discussions and docs, and from r/homeassistant. These are individual reports, so check the linked thread and the date before you buy.

How it connects

Cloud polling

Goes through the maker’s cloud, asking it for updates every so often. Needs the internet and an account.

Details

Installs (analytics)	23
Quality scale	Platinum
Added in	Home Assistant 2026.1
Set up in the UI	Yes
Maintainers	@theobld-ww, @devender-verma-ww, @ssi-spyro

Devices listed in its documentation

BT-CT03-RF
BT-ST03-RF
BT-DP02-RF
BT-D03-RF
BT-A02-RF
BT-A03-RF
BT-TH02-RF
PR03-RF
PR03-RF16
BT-WR03-RF
BT-WR02-RF

Limitations from the docs

BRT-WR02-RF devices paired as heaters are not exposed as separate switch entities in Home Assistant.
When a BRT-WR02-RF is paired as a heater on the gateway, the firmware merges it with the thermostat into a single heater entity. Only BRT-WR02-RF devices paired as standalone switches on the gateway appear as switch entities.

In ReReHome

Whatever HomeKit Bridge shares reaches Apple Home as normal HomeKit accessories behind your Home Assistant bridge, so ReReHome shows and controls them like any other.

Bridges get their own settings page listing the accessories behind them.