Sensor for furnace air filter replacement (lemmy.world)

submitted 4 weeks ago by wetling@lemmy.world to c/homeassistant@lemmy.world

6 comments fedilink hide all child comments

Is anyone aware of a sensor (preferably Zigbee, I think), that will give me an idea of when I need to change my furnace air filter?

I am picturing something that maybe sits on the "clean" side of the filter to measure...pressure? Air quality? I don't know.

you are viewing a single comment's thread
view the rest of the comments

[-] swampdownloader@lemmy.dbzer0.com 1 points 3 weeks ago

Not automated but you can get a radon manometer to identify pressure differentials. Install on both sides of the filter. Identify where pressure is with a new filter, mark it, and see how it changes over time and determine when to replace it.

this post was submitted on 23 Mar 2025

6 points (100.0% liked)

homeassistant

13879 readers

2 users here now

Home Assistant is open source home automation that puts local control and privacy first. Powered by a worldwide community of tinkerers and DIY enthusiasts. Perfect to run on a Raspberry Pi or a local server. Available for free at home-assistant.io

founded 2 years ago

MODERATORS

GreatAlbatross@feddit.uk

greatalbatross@lemmy.world