How geyser controllers could cut 3-5 stages of load-shedding

Dolby said:
What about those instant heat geysers ?

leroymerlin.co.za

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AFAIK they're either for quite low volumes, or you need 3-phase power.

In both cases, you're out of luck if there's load shedding. Whereas gas on the other hand, is much more energy-dense than a typical single-phase domestic electricity connection, so you can heat the water real fast on demand. And gas (usually) doesn't need electricity to function.

There are ones that have batteries for the ignition, and there are ones that need electric power but it's very low so you could put them on a normal UPS and have hot water during load shedding.
 
I think I will simply make the bath into a shower bath and make only it use the gas geyser. The rest can all be solar/inverter driven.
 
am-user said:
Only way to save with kids is to install an automated shutoff valve on the geyser inlet. No hot water anywhere unless it is "shower-hour"
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I live on a plot and we use a water pressure pump. For the kids my "Time is up" message is I turn the pressure off.

Alas if I tried that with my wife I would not survive to have a shower.
 
Dolby said:
What about those instant heat geysers ?

leroymerlin.co.za

Instant Electric Hot Tankless Water Heater - 5.5KW

Instant Electric Hot Tankless Water Heater - 5.5KW Joburg, Pretoria, Cape Town, Durban & Across SA ✓ Secure Shopping ✓ Shop Now ✓ Shop Online & Collect 2 Hours Lat
leroymerlin.co.za leroymerlin.co.za
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i use a 5 kw unit ,flow rate must be at 3 ltr a minute and it gets hot ,but not for a Gauteng winters shower ,for a basin its fine ,summer its fine ,mine has 3 heat settings ,cold ,slightly not cold and well ok .ive installed a few of the Ariston 7 kwvunits but its not plumbed in as with a geyser ,and it must use its designated shower attachment ,they get very hot but wiring and size of cable is a ballache for most installs
 
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newby_investor said:
I'm also not sure if that's within the capability of commercially available gas geysers. Though the good ones are quite well temperature controlled so it may be.
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The guides to use Gas Geysers as secondary to Solar are readily available,though you'd want to use the "Active" heating type that's managed and powered by 220v rather than the "single temperature" battery-operated types
 
PsyWulf said:
www.timeslive.co.za

Eskom's load-limiting pilot project disappoints Fourways residents

Eskom’s pilot project of load-limiting in Fourways, Johannesburg, came with many challenges in its first week, but the power utility seems to be ironing them out.
www.timeslive.co.za www.timeslive.co.za
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Resident Jolene Cusens said they adhered to the rules of the project from the start by turning off geysers before load-shedding starts and only have a few lights and the fridge on. But once the blackouts kicked in, the lights started flickering instead.
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“Without fail, when the load-shedding began, our power turned off and on every five seconds for up to 10 minutes in a row. This is not limited to the start of the load-shedding slot ... Our power is then turned off completely until the end of the load-shedding slot, and sometimes over the scheduled time,” she said.
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Yup,i'm on the groups,it was a madhouse,people were switching off their breakers so their electronics wouldn't go *poof*
 
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