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High Pressure Solar Tube Geyser with current geyser using Heat Pump

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Good Day,

Not sure if this has been answered before.

I have an existing 200l geyser, of which runs with an Heatpump. The geyser still has its element in and DB switch to turn on the element if I really need to, however very rarely do i do that.

Would i be able to install a 200l Secondary Solar hight pressure Geyser to my existing setup, so that when the sun is out, the solar tubes will heat the secondary geyser and if not enough sunlight, the Heatpump can heat the primary 200l geyser.

Basically i want to supplement my primary geyser with the solar geyser.

Is this possible, and plumber's out there can help with this additional setup?

Thank You

4 hours ago, Turbulance said:

Is this possible, and plumber's out there can help with this additional setup?

Not a plumber, but I'd think that you would not want another HWC, but just the manifold, evacuated glass tubes and pump, to add this to you existing HWC, else how would you mix the two HWCs together, but unless you require more volume of water, it would make sense to me, to just add the extra heating capacity with its circulation pump, assuming your existing HWC has the option to have the extra out/inlet connected to the evacuated glass tube manifold...

  • Author

I would like the extra capacity, but if that cannot be achieved, next best would be to be, as you mentioned just to get the just the manifold, evacuated glass tubes and pump to get hot water into the HWC. I am not sure if my existing HWC has the extra out/inlet for the glass tubes and manifold. Worst case if it doesn't have it, do you know if it can be added on?

@Turbulance ,

Maybe read up on this thread https://powerforum.co.za/topic/515-solar-geysers-guide-me/#comment-6296

In it is an attachment of what my WH system looks like.

Basically a 200 + 150 Geyser in SERIES with a HP and tubes. Gives you plenty of hot water for early morning showers, and doesn't burden my Solar system when not used (only 2 ppl in the house atm.) Scale = 1 faint line = 500W

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