---
title: Sensors for Smart Passive House
date: 2019-09-24T20:05:46+00:00
modified: 2019-09-24T20:16:30+00:00
permalink: https://kaspars.net/blog/passive-house-sensors
post_type: post
author:
  name: Kaspars
  avatar: https://reverse.kaspars.net/gravatar/avatar/92bfcd3a8c3a21a033a6484d32c25a40b113ec6891f674336081513d5c98ef76?s=96&d=mm&r=g
category:
  - Home Automation
  - Passive House
---

# Sensors for Smart Passive House

Here is a list of sensors that would be useful in a smart home including those built according to the [Passive House standards](https://passivehouse.com/).

## General Security

- Water level sensors near all water facets used to turn off the water pump for the whole house if a leak is detected.
- Occupancy sensors in all rooms to automatically turn on and off the lights.
- Smoke sensors in all rooms (probably combined with the occupancy sensors).

## Ventilation & Climate

- Outside air temperature.
- Outside relative humidity.
- Inside temperature in each room.
- Inside air pressure near the ventilation unit.
- Relative humidity in each room to adjust the air flow speed.
- Incoming air temperature after the heat exchanger to reduce the air flow to increase the efficiency (as long as the air quality in the rooms is good).
- CO2 sensors in each room to keep the ventilation air flow rate to a minimum while maintaining good air quality everywhere. Heat recovery should work much better at lower flow rate.

Leave your suggestions in the comments!