Solar DC water Heater - Shear madness or absolute genius?

[ExpatOilWorker]

22 hours ago, Damrongsak said:

43 years ago I had a big plastic washtub that I filled up each morning from the cement ang and covered with an old side window from a bus.  By 4 p.m. it warmed up in the sun enough to be bearable.  It gets cold at night in the winter in Loei and there wasn't enough water pressure for any kind of shower. 

The Chinese have improved that idea:

 

https://s.lazada.co.th/s.ewqhx

[Orinoco]

23 hours ago, sezze said:

but if i got the choice , toilet paper and hot water are very high on the list ( toilet paper being nr 1 ) .

What is Toilet paper ?
22 years in Thailand. !!!!!!!!!!!!!LOL.

 

 

[sezze]

1 minute ago, Orinoco said:

What is Toilet paper ?
22 years in Thailand. !!!!!!!!!!!!!LOL.

 

 

Maybe you use the spray gun , in my case it was a bucket of water and soap . But since you are 22y in Thailand , you should know what im talking about .

[Muhendis]

On 8/2/2021 at 5:20 PM, ExpatOilWorker said:

Any better solution?

Sorry it's such a long address.

https://www.alibaba.com/pla/New-Product-SD-P-Pressurized-Double-Inner_62004268871.html?mark=google_shopping&biz=pla&language=th&pcy=TH&searchText=solar+water+heaters&src=sem_ggl&from=sem_ggl&cmpgn=12326237922&adgrp=116324166143&fditm=&tgt=pla-298190246337&locintrst=&locphyscl=9073381&mtchtyp=&ntwrk=u&device=c&dvcmdl=&creative=498237813582&plcmnt=&plcmntcat=&p1=&p2=&aceid=&position=&localKeyword=&gclid=CjwKCAjw0qOIBhBhEiwAyvVcf4ZntYt8f9eIA1jOJNzxAf2F3ZGad2Ac-_a-Vtuvs_o2ALjzlB7TsRoCDEMQAvD_BwE

[ExpatOilWorker]

27 minutes ago, Muhendis said:

Sorry it's such a long address.

https://www.alibaba.com/pla/New-Product-SD-P-Pressurized-Double-Inner_62004268871.html?mark=google_shopping&biz=pla&language=th&pcy=TH&searchText=solar+water+heaters&src=sem_ggl&from=sem_ggl&cmpgn=12326237922&adgrp=116324166143&fditm=&tgt=pla-298190246337&locintrst=&locphyscl=9073381&mtchtyp=&ntwrk=u&device=c&dvcmdl=&creative=498237813582&plcmnt=&plcmntcat=&p1=&p2=&aceid=&position=&localKeyword=&gclid=CjwKCAjw0qOIBhBhEiwAyvVcf4ZntYt8f9eIA1jOJNzxAf2F3ZGad2Ac-_a-Vtuvs_o2ALjzlB7TsRoCDEMQAvD_BwE

I do like the solar vacuum tube type of water heater and it is fascinating how they works, but they are ugly to look at and put the tank far from the outlet point, unless a pump is incorporated in the design.

 

 

[CharlieH]

Reported post and responses removed.

[sandyf]

On 8/3/2021 at 7:40 AM, BE88 said:

But if you want a perfectly functioning system with a lot of hot water in reserve

Exactly. Why convert energy from the sun into electrical energy and then to thermal energy when it can be done directly.