Connecting a low pressure geyser to a high pressure geyser

[naasier]

Hi

I want to bring my electricity bill down so I am deciding on getting a DC geyser element which will be powered by PV panels.
I have two geysers, one being a low pressure geyser which will be retrofitted with the dc element. The second geyser is a high pressure and will be connected to the DB in case the water isn't warm enough.
So is it possible to have water flowing from the low pressure geyser into the high pressure geyser. Both are Kwikot geysers.

Thanks

 

[ToxicBunny]

Very much doubt it... your low pressure geyser can't "feed" the high pressure one anymore than the pressure it itself carries, so in effect they will both become low pressure geysers from the way I understand basic household plumbing.

 

[Grouter]

Try blowing up your car tyre by putting your lips over the tyre valve and blowing. Now imagine what you're asking your low pressure geyser to do...

 

[ajv]

I wanted to do the same thing and my plumber said it cannot be done.

 

[Stokstert]

If you connect both geysers, the low pressure one will burst as it not designed for the higher pressure.

 

[Grouter]

The whole system will have to run at the designated pressure of the lowest pressure device in the system - pascal's principle. You could do as you want, but you'd need a low pressure regulator for the system and thus the entire house, hot and cold water, would be low pressure.

What is the low pressure geyser, 1 bar?

We only have 1 bar with a 30 year old geyser. Low pressure, low stress, less water usage, less electricity needed - WIN!

 

[falcon786]

You can do it the other way around,have the high pressure geyser feed the low pressure one but you will need a valve between the two to reduce the pressure.

You may want to get your cold water on low pressure also in this case so that the system is balanced.In fact I will say you have to do it.

 

[naasier]

Thanks to everyone for their responses. I got a quote if anyone is interested.

The Geyserwise AC/DC Titanium element(9yr guarantee) fits into any Geyser-no need to change any plumbing.The element can operate from both or either AC and DC separately. Kit consist of Display (Geyserwise dual) and Control Unit,Digital Thermostat,MPPT solar controller and 3x 250watt Panels. Looking at just over R16k and thats excluding the mounting brackets for the PV panels and excludes installation.

 

[ToxicBunny]

Yes... that is just that bit of work.. you still cannot connect a low pressure to a high pressure system and expect it to work.

 

[naasier]

Yeah now I have to go back to the drawing board. I am now getting quotes for a complete new system as well as other possible retrofit options. City of Cape Town has a list of accredited companies so will be using that a guideline for now.

 

[Stokstert]

Yeah now I have to go back to the drawing board. I am now getting quotes for a complete new system as well as other possible retrofit options. City of Cape Town has a list of accredited companies so will be using that a guideline for now.

If you decide on a new system go solar and not through PV supplied power to fancy controllers and heating elements.

 

[Tokkiebod]

Naasier why dont you buy a complete solar system builders have one which you can connect directly to your high pressure system

 

[Tokkiebod]

Naasier why dont you buy a complete solar system builders have one which you can connect directly to your high pressure system it goes for under 10k
QUOTE]