Comments on: A Solar Water Heater Made of PET Bottles

By: Rigioni

Rigioni — Mon, 21 Dec 2009 20:33:15 +0000

Following comment on July 21st 2009… heated water never touch the PET bottles, these with the black tetra pack cartons perform a “green house” effect around the pipes where the water flows to increase the heating effect, so there should be no concern about chemicals being transferred to the water… cheers

By: steve

steve — Sat, 14 Nov 2009 21:50:14 +0000

Love this system… I need some advice? I want to place a small version of this on my greenhouse, close the system and route water down to heat rocks under greenhouse, then push water back up to heat it again. This way I can keep the cut flowers & other plants warm in winter. How would I get the warm water down and move cold water back up this completely enclosed system. I don’t need the water for the plants just for warming the rocks. Ideas???

By: Martin

Martin — Tue, 21 Jul 2009 08:00:34 +0000

PET water bottles are safe to use for their original purpose, but they leach a toxic chemical when the liquid they contain is heated. The chemical is antimony and its effects have not been studied enough yet.

That being said, the benefits of hot running water in isolated communities could outweigh the adverse effects of antimony.

People are being taught how to use the sun and plastic water bottles to sterilize drinking water in Africa. It’s pretty low tech.

By: Nick Xin

Nick Xin — Thu, 16 Jul 2009 08:11:11 +0000

How can it work? can you give detail photo?

By: T VENKAT REDDY

T VENKAT REDDY — Mon, 26 Jan 2009 11:52:31 +0000

Incredible idea and achievement by Jose Alano. In India many people reside in the remote places, where the electricity is seldom available. If the information in the instructional manual is made available in English,then it will be useful to the most of the people of the world including Indians.
Thank you,
T Venkat Reddy

By: gooroogirl

gooroogirl — Sat, 08 Nov 2008 05:21:33 +0000

Brilliant! Where do I find the design sheets on this? How do you put the bottles into each other?
Oooooooooooooh………..I WANNA KNOW!!!

By: Hollito

Hollito — Fri, 17 Oct 2008 13:30:26 +0000

A few more details about the construction would be great. As far as I can see on the photos, the PET bottles are put together to create something like a “heat chamber” around the tubes with the water, and the milk packages (seems to be something like the “Tetra Pak”) are used as reflectors? Can you provide us with more information?

Thanks.

By: Sangita

Sangita — Wed, 01 Oct 2008 19:27:43 +0000

Yes! Keeping in mind the drastic environmental changes and rising fuel prices going Solar is one option open to all at minimal investments. The Solar Water heating systems are so easy to install and most of them come in a Do-it Yourself kit, With the technological advancement the once heavy, bulky hard to move panels are now available widely in light weight easy to carry by one personal only packages. The advancement in technology is not only limited to light weight, but for those concern about the asthetics of the panels, the good news is that the panels are now available with a variety of trim colors to choose from and can be easily matched to your roof. Saving about $25.oo on ones electricity bill on a residence of 4. We all use hot water, as one of our basic needs and what can be a better way, than helping our environment, saving our resources and ourself’s some money other than by investing in a Solar Water Heating System.

Lastly, the local utilites in some areas also provide additional rebates and incentives for adding a Solar Water Heating Sytem to your exisitng water tank.
Keep the look out on. Feel Good and save- money for you, environment for us.

By: Ravikumar

Ravikumar — Fri, 04 Jul 2008 05:32:05 +0000

Its a great idea. Pl. share the construction details so that the same can be tried in other parts of the world to bring environmental awareness.

By: Tankless Water Heaters

Tankless Water Heaters — Sun, 04 May 2008 23:34:25 +0000

Impressive way to use old items and get the most for your money. Nice to see ingenuity put to work as most people are happy to just throw their old items away.