Thank you so much. I understand now. Time to 'screw' my solar water heater plumber. How about the cold water feed in? Will the mixer get hot enough to jeopardized the PVC cold water input pipe?

No bro. No. The end of PVC is usually connected with a metal socket like GI or stainless steel or copper/brass so that it will not worn out screwing/connecting the mixer. On top of that the cold water (and the hot water) will enter the mixer inlets then mix inside, beyond the inlet hot and cold pipes. Even if the socket is PVC it will never get heated up. As the cold water pipe keeps supplying the cold water to the mixer keep flowing there is no way the mix hot/cold water can reverse the flow and heat up the cold pipe. It is a one way traffic. Hope that clears your doubts.

Hello ...

I am currentlly looking into solar water heater and need your advice. My house has 3 bathroom upstairs and 1 downstairs. Upstairs we are using 1 bathroom only. The other 3 more bathroom not so soon use (baby only 1 month old) or occasionally use when visitors, mother/mother in law comes over. It is advisable to get solar water heater or just go for instant water heater?

If you have the budget get solar, and put in all toilet. Don't do half way. Maybe can skip the ground floor if for maid only.

But need hacking.

Best solar is still micro solar but much more expensive. I have review it when I did my renovation.

I bliv this package is what you will need.




If you would like to get the best solar, u might wanna consider Solar POWER U60 as it is similar to microsolar but the connection of the tube to the storage tank is leak proof. However, the price is RM 1.5-1.7k more than the normal panel series.

Here is the internal design of the connection for U60 series (heat pipes)



This post has been edited by zheilwane: Jun 4 2012, 11:59 PM

And here the micro solar. Have a read http://www.microsolarsystem.com/

Thanks for the replies. Will read up before deciding ... exciting times ... hehe

My Solar Water Heating Unit
http://forum.lowyat.net/index.php?showtopi...&#entry52051428

your don't store heat for so long, is it fix?. My friend micro solar 2 days no sun shine no problem.

So far better than before, water still hot in the morning but of course not as hot as last night.
Microsolar uses the tube thingy instead of panels, better heat efficiency, so water definately hotter.
Any heat loss between night and morning??
My problem is heat retention especially through the night when there is no sun.

u using microsolar?

No money to put, my friend using, and I review it check out the product before too.

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Added on June 10, 2012, 8:46 amHeat lost is there, any product will have. Micro solar can capture more heat comparer to other solar panel during cloudy day.

This post has been edited by weikee: Jun 10 2012, 08:46 AM

Once you can understand why microsolar is more efficiency is, they don't have a heater to backup in case cloudy day. They are confident that their solar heater can retain the hot water enough even cloudy day.

Another good brand is summer, my neighbor using one for more than 15 years and is still running, just did a valve replacement when she taken it down for changing root.

so far no problem with my SolarPower ...is just that you will get near to boiling water during hot day which i do not need it...=D...i thought i am the only one who turn on the mixer all towards the hot side then only start to mix..haha...~.~''...wish to install additional pump for the solar heater...

What is the price for Solar POWER U60, is that good enough for 4 persons?

This are common for solar hot water panel, you get hot water when you don't need it.

I wonder can we generate some power from this hot water when we don't need it. To we need it. Electric.

My brother used his solar heater to generate power lighting to Attic room, 1st floor balcony and Staircase area.
And that was 20 years ago.

Am sure they have come out with a better idea. But never heard of anyone doing it anymore..

That is very interesting. Can tell us more about it? How to convert and what parts need.

At least save some energy and solar heater ROI.