henward Posted February 8, 2008 Author Report Share Posted February 8, 2008 true true insulated sides would be economical i guess i was throwing around ideas. i am estimtaing running cost ofr a well insulated tank would be 100-120 a month on electricity. plus food another 50 - 80 dollars. Quote Link to comment Share on other sites More sharing options...
anthony law Posted February 8, 2008 Report Share Posted February 8, 2008 my mate father heated there 30.000 liter pool by puting solar panel on the roof of the house and black tubeing running the length of the house back down to the pool the pool run about 20 to 24 drinig witier and 24 to 28 during summer. as the heater only run when the pump is on,,,, Quote Link to comment Share on other sites More sharing options...
David R Posted February 8, 2008 Report Share Posted February 8, 2008 yeah, australia aint much better wiht fish, cos they dont let you import some Aussie lungfish, snake heads, barramundi, red tailed catfish... Solar would be pretty good, but I think you'd want some form of back up thats capible of keeping it warm on a long cold winters night. Quote Link to comment Share on other sites More sharing options...
Cheesejawa Posted February 8, 2008 Report Share Posted February 8, 2008 15000 litres hmmm that would need 22500 watts of heater to heat it at least. so you would need 75 300 watt heaters if you wanted to do it that say. :lol: Quote Link to comment Share on other sites More sharing options...
livingart Posted February 8, 2008 Report Share Posted February 8, 2008 hey mark: solar seems good and efficient. backed up by electricity no doubt if sun isnt very strong? hot water bore, i am unsure if we get many hot water wells here.. i really dont know how that works lol looking for massive containers for fish, doesnt have to be a pool i guess any ideas mark? i mean massive talking at least 6000 litres my pool is 20,000 water tanks for farms, ccheck out Devan plastics nz on google dig 1/3rd in ground for insulation plus poly on top Quote Link to comment Share on other sites More sharing options...
georgeous Posted February 8, 2008 Report Share Posted February 8, 2008 was that ment to be 20,000?? Quote Link to comment Share on other sites More sharing options...
Cheesejawa Posted February 8, 2008 Report Share Posted February 8, 2008 is that for breeding arowanas? Quote Link to comment Share on other sites More sharing options...
livingart Posted February 8, 2008 Report Share Posted February 8, 2008 was that ment to be 20,000?? yes Quote Link to comment Share on other sites More sharing options...
livingart Posted February 8, 2008 Report Share Posted February 8, 2008 go to devan.co.nz then water tanks and download the brochure we are using a 30,000 tank 2/3rds full currently eel pool waiting for more aros at a good price Quote Link to comment Share on other sites More sharing options...
Cheesejawa Posted February 8, 2008 Report Share Posted February 8, 2008 how does the national aquarium heat thier asian bioype and croc tanks they are open top? Quote Link to comment Share on other sites More sharing options...
TM Posted February 8, 2008 Report Share Posted February 8, 2008 Yeah, a large plastic water tank sounds good. As stated dig into ground by 1/2 to a 1/3. You could cut a viewing window into the top part, say top 800 - 1000mm that way you wouldn't need glass that thick - well compared to if it was towards the bottom. How about a pool cover for the top?? Go and talk to a swimming pool shop and discuss heating. Quote Link to comment Share on other sites More sharing options...
livingart Posted February 8, 2008 Report Share Posted February 8, 2008 Yeah, a large plastic water tank sounds good. As stated dig into ground by 1/2 to a 1/3. You could cut a viewing window into the top part, say top 800 - 1000mm that way you wouldn't need glass that thick - well compared to if it was towards the bottom. How about a pool cover for the top?? Go and talk to a swimming pool shop and discuss heating. acrylic windows and leave top on tank with acrylic windows in it Quote Link to comment Share on other sites More sharing options...
AMAZONIAN Posted February 8, 2008 Report Share Posted February 8, 2008 Hi All. The request is easy to address. Go and see an element manufacturer, there is one in Carr Road, Mt Roskill; HI - BAR if memory serves me right.. Explain what you want to do and follow their advise. It does work. Quote Link to comment Share on other sites More sharing options...
henward Posted February 8, 2008 Author Report Share Posted February 8, 2008 i am very sure it doesnt take 22kw to heat 15,000 litres you get poo heaters, aqua clear heating in penrose some are designed to heat huge pools, only to bring temps max 12 degrees it says, an its no where near 22 kw, maybe if you want to heat it in 5 minutes?? im sure it takes less than that. Quote Link to comment Share on other sites More sharing options...
Ira Posted February 8, 2008 Report Share Posted February 8, 2008 It would take nowhere near 20 kilowatts to heat a tank that size, depending on ambient temp and insulation of course. There's this convenient thing where the heat is lost by the SURFACE area, not the volume. And surface area increases half as quickly when you make a tank larger as the volume does. It's basic geometry. Quote Link to comment Share on other sites More sharing options...
Warren Posted February 8, 2008 Report Share Posted February 8, 2008 Use a heatpump. There's a very good range of high conversion rate heatpumps available for pools. You may have to use a heat exchanger as well to isolate the pond/tank water from the metal used in the heatpump. Not the cheapest solution to setup but the payback in saved power is likely to only be 2 years. Quote Link to comment Share on other sites More sharing options...
henward Posted February 8, 2008 Author Report Share Posted February 8, 2008 fair enough i am also looking at marks idea, the water tanks very sound good idea! burying half the tank in the ground, insulating the rest. pretty good way, but i guess making the window how easy is that? enlargin the hole at the top..does that comprimise structural integrity (i watch too much sci fi). and the window too? i mean devon plastic tanks sell 30k litre tanks for 3400, pretty good! imagine the pacus you can put in there! wow, im excited thinking bout it in fact, i feel another impulse buy, perhaps i can put it at the back of my shop or in the garage:D Quote Link to comment Share on other sites More sharing options...
markoshark Posted February 8, 2008 Report Share Posted February 8, 2008 at the back of my shop What, rather than giving staff warnings you feed them to the Pacu? lol Quote Link to comment Share on other sites More sharing options...
henward Posted February 8, 2008 Author Report Share Posted February 8, 2008 not as such but close you put their hands in while you ask "what do you know? what did you see!?!?!?!" in that 30k litre tank, i would buy up all pacus in the country thats for sale! id put 20 silver dollars. and two massive catfish type fish! im excited! 2 years, ill get one:D wiht in two years Quote Link to comment Share on other sites More sharing options...
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