Geyser Timer


by Fuzigish
Tags: geyser, geyser controller, geyser timer, timer
Fuzigish
Fuzigish is offline
#1
Nov15-08, 06:53 AM
P: 5
I want to build a digital timer that will switch my geyser on and off at a preset time in order to save power. I don’t know much about PICs so I would rather try using only logic ICs. It has to have at least 3 preset ‘on-times’ and 3 ‘off-times’. Can anyone help me to get started?
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Proton Soup
Proton Soup is offline
#2
Nov15-08, 03:08 PM
P: 1,070
seriously, just go to the hardware store and pick up an AC wall timer. something like this:


maybe get a "heavy duty" unit, while you're at it. don't know how much power a "geyser" uses.
Fuzigish
Fuzigish is offline
#3
Nov15-08, 03:52 PM
P: 5
Unfortunately it would be illegal to build something like that into a distribution board in South-Africa. Plus an average geyser is 4000W – 6000W, so I don’t think even a heavy-duty unit would work.

This is an example of something similar: http://www.geyserwise.co.za/web/index.php

Proton Soup
Proton Soup is offline
#4
Nov15-08, 05:35 PM
P: 1,070

Geyser Timer


a "geyser" is a hot water heater?

there are also timers that control a lot more current and could be inserted into an electrical panel. what i don't get is how it's going to be any more legal for you to insert some homemade controller into a panel. if that's your goal, you'll need to buy an approved product.
Fuzigish
Fuzigish is offline
#5
Nov16-08, 03:32 AM
P: 5
Yes, a ‘geyser’ is a hot water heater.
This whole exercise is not to build something that will necessarily be used. I just want to learn something out of this about logic-ICs, so buying a pre-built unit would be pretty useless.


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