Geyser and usage query.

[KnightLion]

Hi all

I have a strange query. So I'm a firm believer in switching your geyser off and on during the day saves you little to nothing on your electricity especially the "newer" ones and well isolated but I got the efergy power monitor device from RS (https://za.rs-online.com/web/p/energy-meters/8199789) for those interested. Anyway I did a test so I switched off my geyser for a full 24H and my power use did not get affected by this at all.
Is this possible? My one conclusion is that maybe the "geyser" breaker is not switching off my geyser
My Geyser was switched off for the 9th

 

[DapperDanMan]

Perhaps the wife hates cold water?

 

[one poster]

I switched off my geyser for a full 24H and my power use did not get affected by this at all.
Is this possible? My one conclusion is that maybe the "geyser" breaker is not switching off my geyser

Depending on variables like geyser insulation/standing loss, ambient temperature, (incoming) water temperature, volume of water used, etc. a geyser does not necessarily use as much electricity as many people expect. With your efergy probably measuring total house/flat power use, the geyser could be bit harder to recognise in the efergy based graph. Even if left off for only 12 hours you will likely see a spike in power use at the time you switch on the geyser (unless the ambient temperature if very high and/or the geyser thermostat is wonky). If switched on after 24 hours the geyser will probably be on for an hour at least but then if you do not use water from the geyser (and considering the factors like ambient temperature etc.) the element could very likely switch on only a couple of times during the day and for relatively short periods -> this behaviour will not be obvious when the "noise" from all the other power users are included in the graph.

Looking at the graph I will hazard a guess that you switched on the geyser again somewhere between 06:00-07:00 on 10Feb and that it is probably a 2kW geyser element. (and therefore that the breaker switched off the geyser).

Btw, if relevant to you maybe crop the top cm or so of your screenshot

 

[Snyper564]

Depending on variables like geyser insulation/standing loss, ambient temperature, (incoming) water temperature, volume of water used, etc. a geyser does not necessarily use as much electricity as many people expect. With your efergy probably measuring total house/flat power use, the geyser could be bit harder to recognise in the efergy based graph. Even if left off for only 12 hours you will likely see a spike in power use at the time you switch on the geyser (unless the ambient temperature if very high and/or the geyser thermostat is wonky). If switched on after 24 hours the geyser will probably be on for an hour at least but then if you do not use water from the geyser (and considering the factors like ambient temperature etc.) the element could very likely switch on only a couple of times during the day and for relatively short periods -> this behaviour will not be obvious when the "noise" from all the other power users are included in the graph.

Looking at the graph I will hazard a guess that you switched on the geyser again somewhere between 06:00-07:00 on 10Feb and that it is probably a 2kW geyser element. (and therefore that the breaker switched off the geyser).

Btw, if relevant to you maybe crop the top cm or so of your screenshot

yeah dont wanna dox yourself - popi can only protect you so much

 

[richjdavies]

Have you compared what the effergy read against your meter?

E.g. single phase or three phase?

Maybe your effergy is just effing crap... Or not quite installed right...

Are you even using hot water?