---
title: "Renson"
description: "Renson is a built-in integration for Home Assistant. It has 43 installs sharing analytics and works locally."
canonical: "https://vulpo.app/integrations/core/renson"
url: "https://vulpo.app/integrations/core/renson.md"
last-updated: "2026-10-22"
version: "1.4"
---

# Renson

> Renson is a built-in integration for Home Assistant. It has 43 installs sharing analytics and works locally.

Renson is a built-in integration that connects Home Assistant to a Renson Endura delta ventilation device. It communicates locally and is set up in the UI by entering the device's hostname or IP address. It adds sensors for air quality, CO2 quality category, extract air temperature, bypass level, and filter change, along with binary sensors for frost protection, preheater, and humidity control. A fan entity and a Breeze switch control the ventilation, while number and time entities cover filter settings and the start of the day and night periods. Buttons reset the filter counter and sync the device clock. Actions set the Breeze function, the pollution settings, and the ventilation timer.

Automatic summary of Home Assistant's source code. Something wrong? [Get in touch](https://vulpo.app/contact)

[Open in My Home Assistant](https://my.home-assistant.io/redirect/config_flow_start/?domain=renson)

## Supports

- **Works locally**: Talks to your devices on your own network. No vendor cloud in between.
- **Set up in the UI**: Add it in Settings, Devices and services. Nothing to download.
- **Updated with Home Assistant**: Ships and updates with every Home Assistant release.

## Setting it up

It is added under Settings, Devices and services, with Add integration.

### Connect

- **Host**: The hostname or IP address of your Renson Endura delta device.

Texts from Home Assistant's source code, [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0).

## Entities

- **Binary sensors**: Air quality control, Breeze, Breeze conditions met, CO2 control, Frost protection active, Humidity control, Preheater
- **Buttons**: Reset filter counter, Sync time with device
- **Numbers**: Filter clean/replacement
- **Sensors**: Air quality, Air quality category, Breeze level, Breeze temperature, Bypass activation temperature, Bypass level, CO2 hysteresis, CO2 quality category, CO2 threshold, Day pollution level, Extract air temperature, Filter change, and 6 more
- **Switches**: Breeze
- **Times**: Start time of the day, Start time of the night

## Actions

- **Set Breeze**: Sets the Breeze function of the ventilation system
  Fields: Activate, Level, Temperature
- **Set pollution settings**: Sets all the pollution settings of the ventilation system
  Fields: Enable air quality control, Enable CO2 control, CO2 hysteresis, CO2 threshold, Day pollution level, Enable humidity control, Night pollution level
- **Set timer**: Sets the ventilation timer
  Fields: Time, Level

## At a glance

- Kind: Built-in integration
- Category: [Climate](https://vulpo.app/integrations/category/climate.md)
- Number: 43 installs sharing analytics
- Connection: Works locally
- Upkeep: Part of Home Assistant
- Needs: Built into Home Assistant
- Domain: `renson`
- Source: <https://www.home-assistant.io/integrations/renson/>

In Vulpo: Quick Toggle card, Fan card, Button card, Chart card, Apple Watch, Control Center

Independent directory, made by the developer of Vulpo. Not affiliated with Home Assistant or the Open Home Foundation. [About these numbers](https://vulpo.app/integrations/about)

Last updated 2026-10-22. Source: https://vulpo.app/integrations/core/renson

---

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