# Effective false lightning filtering **URL:** \ **Category:** Feature Requests\ **Tags:** lightning\ **Created:** [September 3, 2018, 7:29pm UTC](https://community.tempest.earth/t/effective-false-lightning-filtering/2093 "2018-09-03T19:29:50Z")\ **Posts on this page:** 8\ **Page:** 2
**Author:** ![WFmarketing](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/wfmarketing/32/62_2.png) [@WFmarketing](https://community.tempest.earth/u/WFmarketing)\ **Post date:** [September 4, 2018, 11:14pm UTC](https://community.tempest.earth/t/effective-false-lightning-filtering/2093/21 "2018-09-04T23:14:28Z")
> [@vreihen](#): > > Turns out that one of the fittings on the air compressor in my garage had a tiny leak, causing the compressor motor to cycle on/off about once per day and generate the spark that was picked up by the Air on the outside garage wall… New AIR feature: air compressor leak detection! 😉 ---
**Author:** ![vreihen](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/vreihen/32/13217_2.png) [@vreihen](https://community.tempest.earth/u/vreihen)\ **Post date:** [September 4, 2018, 11:39pm UTC](https://community.tempest.earth/t/effective-false-lightning-filtering/2093/22 "2018-09-04T23:39:41Z")
Why think small? Roscosmos certainly can use a leak detector for their Soyuz spacecraft, especially one that also triggers when detecting the arcs from the motor of an errant electric drill at the factory… 🤔 ---
**Author:** ![dsfg](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/dsfg/32/9736_2.png) [@dsfg](https://community.tempest.earth/u/dsfg)\ **Post date:** [September 5, 2018, 6:40am UTC](https://community.tempest.earth/t/effective-false-lightning-filtering/2093/23 "2018-09-05T06:40:15Z")
What kind of heating system is used in your place ? As well, oil blowers have known emp issues and start statistically those days. 😉 ---
**Author:** ![sunny](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/sunny/32/16368_2.png) [@sunny](https://community.tempest.earth/u/sunny)\ **Post date:** [September 5, 2018, 7:18pm UTC](https://community.tempest.earth/t/effective-false-lightning-filtering/2093/24 "2018-09-05T19:18:53Z")
central heating. it has a pump that for its own reasons starts up for a few minutes at 6 in the evening. It’s about 25m away from the unit and doesn’t correlate with the false readings. Even if it did, what can I do, the pump does his thing as it is designed to do that. I have no idea what an oil blower is. ---
**Author:** ![chaminoe](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/chaminoe/32/2185_2.png) [@chaminoe](https://community.tempest.earth/u/chaminoe)\ **Post date:** [September 5, 2018, 9:15pm UTC](https://community.tempest.earth/t/effective-false-lightning-filtering/2093/25 "2018-09-05T21:15:41Z")
He probably means that the oil burner has a piezo igniter that would false the lightning detector. It causes a spark between the electrode and the fuel jet that ignites the fuel spray. ---
**Author:** ![dan.gealt](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/dan.gealt/32/4908_2.png) [@dan.gealt](https://community.tempest.earth/u/dan.gealt)\ **Post date:** [September 6, 2018, 12:06am UTC](https://community.tempest.earth/t/effective-false-lightning-filtering/2093/26 "2018-09-06T00:06:02Z")
Some (maybe most) oil furnace burners have a high voltage transformer that causes an arc between a pair of electrodes during the ignition phase. Usually they also have a CdS photocell and a timer circuit that shuts off the arc when it sees that the oil spray has ignited or after a period of time with no fire. Ignition or not, you have a small spark-gap transmitter running whenever the furnace starts. So this certainly has the potential to cause false lightning detections. ---
**Author:** ![dsfg](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/dsfg/32/9736_2.png) [@dsfg](https://community.tempest.earth/u/dsfg)\ **Post date:** [September 6, 2018, 7:15am UTC](https://community.tempest.earth/t/effective-false-lightning-filtering/2093/27 "2018-09-06T07:15:54Z")
Thanks dan for your supplements. Sometimes it’s hard to hit the bull’s eye in translation 😉 So I was able to learn 🙂 In addition, as I know, gas heating systems have a similar mechanism. ---
**Author:** ![eric](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/eric/32/13553_2.png) [@eric](https://community.tempest.earth/u/eric)\ **Post date:** [February 26, 2022, 8:44pm UTC](https://community.tempest.earth/t/effective-false-lightning-filtering/2093/28 "2022-02-26T20:44:00Z")
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