⚠️ This forum has been restored as a read-only archive so the knowledge shared by the community over many years remains available. New registrations and posting are disabled.

All times are UTC + 8 hours




Post new topic Reply to topic  [ 14 posts ] 
Author Message
PostPosted: Oct 4th, '08, 15:48 
Xtreme Contributor
Xtreme Contributor
User avatar

Joined: Aug 26th, '08, 14:44
Posts: 131
Gender: Male
Location: Broken Hill
Got a heap of solar water heaters i was thinking about using inmy system in winter they are a plastic thing shaped like a pair of rooftyles that have a copper ppipe running roung in a u loop one sige blacked for heat capture and the other side insulated with foam or sealed fiberglass what do these peoples of the forum think in regard to the copper aspect :?: I would only use in winter and then duing the day :? perhaps i should just use them to heat the spa :|


Top
 Profile  
Reply with quote  
    Advertisement
 
PostPosted: Oct 4th, '08, 15:49 
Xtreme Contributor
Xtreme Contributor
User avatar

Joined: Aug 26th, '08, 14:44
Posts: 131
Gender: Male
Location: Broken Hill
Gee i need spell check :oops: or less rum :drunken:


Top
 Profile  
Reply with quote  
PostPosted: Oct 4th, '08, 15:56 
You could run them through aluminium (if you want) or stainless steel tubing... put the tubing in the tank... and just heat exchange....


Top
  
Reply with quote  
PostPosted: Oct 4th, '08, 16:21 
Bordering on Legend
Bordering on Legend
User avatar

Joined: Sep 19th, '08, 20:12
Posts: 327
Gender: Male
Location: PERTH 6066
our drinking water comes thru copper... wouldnt have thought it would be an issue.. could be wrong tho.


Top
 Profile  
Reply with quote  
PostPosted: Oct 4th, '08, 16:30 
A posting God
A posting God
User avatar

Joined: Jul 1st, '08, 11:03
Posts: 3690
Gender: None specified
Location: Australia NSW
AP water will eat through the copper.

Stainless pipe heat exchange like RupertofOZ said.


Top
 Profile  
Reply with quote  
PostPosted: Oct 4th, '08, 17:01 
Seriously, this cant be healthy.
Seriously, this cant be healthy.
User avatar

Joined: Oct 11th, '07, 19:43
Posts: 6687
Gender: Male
Are you human?: Not at 3 am :(
Location: Kalgoorlie
Please dont start the discussion again Steve. Copper is bad to fish. Ap is a closed loop system, our water supply is not as acidic as ap.


Top
 Profile  
Reply with quote  
PostPosted: Oct 5th, '08, 17:56 
Xtreme Contributor
Xtreme Contributor
User avatar

Joined: Aug 26th, '08, 14:44
Posts: 131
Gender: Male
Location: Broken Hill
Yea i see what you mean use a closed loop system of heated water to heat transfer into stainless or aluminium that sits in the fish tank rather than heating AP water directly through heating tubes. 8) Rare moment or clarity :o Now where to scrounge the stainless :evil:


Top
 Profile  
Reply with quote  
PostPosted: Oct 6th, '08, 07:56 
Almost divorced
Almost divorced

Joined: Dec 9th, '06, 20:31
Posts: 1079
Location: Drongen, Belgium
Gender: Male
Location: Drongen, Belgium
VERY compact and affordable stainless steel heat exchangers:
http://www.swep.net/index.php?lang=en
example:
http://www.swep.net/index.php?tpl=produ ... Pressure=S

been installing them for years, never had a problem
except: just make sure you connect them with stainless steel flexibles.
pipes expand and that is fatal
stands for easy cleaning too
I use caustic soda to clean them (in a well ventilated room,wear gloves ! and rinse well before mounting back)

frank


Top
 Profile  
Reply with quote  
PostPosted: Oct 6th, '08, 08:26 
Seriously, this cant be healthy.
Seriously, this cant be healthy.
User avatar

Joined: Dec 6th, '07, 01:13
Posts: 10709
Images: 0
Location: central FL
Gender: Female
Are you human?: YES at least mostly
Location: USA, Florida, Yalaha
Another option along the lines of using a heat exchanger would be to hook the solar water heaters to an insulated container and pump or thermosiphon through the panels during the day and then run system water through a heat exchanger loop sitting in the insulated container at night. This would allow you to utilize the heat when you need it most, during a winter night.


Top
 Profile  
Reply with quote  
PostPosted: Oct 6th, '08, 08:56 
Stainless steel exchangers (like the ones in Frank's link) are commonly used in brewing to cool... Wort make a range....

Also used by bio-diesel people.... Member "Tony from WA" actually makes them, and sell on eBay... http://cgi.ebay.com.au/30-Flat-Plate-He ... otohosting

Was going to attach some pics.. but thread wont allow... so posted the link instead.... :headbang:


Top
  
Reply with quote  
PostPosted: Oct 6th, '08, 08:59 
Actually, that listing may not be Tony's listings.... but you get the idea... PM Tony for details if you're interested...


Top
  
Reply with quote  
PostPosted: Oct 6th, '08, 10:05 
Almost divorced
Almost divorced

Joined: Dec 9th, '06, 20:31
Posts: 1079
Location: Drongen, Belgium
Gender: Male
Location: Drongen, Belgium
RupertofOZ wrote:
Actually, that listing may not be Tony's listings.... but you get the idea... PM Tony for details if you're interested...

sorry, what listing?
completely lost here
quotes might help
frank


Top
 Profile  
Reply with quote  
PostPosted: Oct 6th, '08, 10:24 
The one (eBay listing)...referred to in the post above it Frank... hence the :headbang:


Top
  
Reply with quote  
PostPosted: Oct 11th, '08, 08:21 
Xtreme Contributor
Xtreme Contributor
User avatar

Joined: Aug 26th, '08, 14:44
Posts: 131
Gender: Male
Location: Broken Hill
Put a prototype water heater together yesterday took all of half an hour. :lol: used three of the heater tiles will try it out on my spa when i refill it if its a goer will look at heat exchange, bigger unit more tiles :twisted: question is will it thermosyphon or will it need a pump :?: and where did the add attachment box go so i can post a pici :geek:


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 14 posts ] 

All times are UTC + 8 hours


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

Powered by phpBB® Forum Software © phpBB Group
Portal by phpBB3 Portal © phpBB Türkiye
[ Time : 0.095s | 15 Queries | GZIP : Off ]