Jaxxnz Posted November 5, 2010 Report Share Posted November 5, 2010 hi guy, could some1 here share some infos regards to what or how many heater they would use in a large volume of water fish tank? +1,000ltr Quote Link to comment Share on other sites More sharing options...
smidey Posted November 5, 2010 Report Share Posted November 5, 2010 i have had great success with jager heaters, for a 1000L i would recommend a 300W plus another 200W as a assistant heater. The 300W is rated for up to 1000L but i would say that would be ok if in a warm room. the other consideration is the 300W heater is a little over 50cm long so if that is not going to be suitable then maybe a couple of 250W or similar. Quote Link to comment Share on other sites More sharing options...
amethyst Posted November 5, 2010 Report Share Posted November 5, 2010 I think we have 2x 300w on our 900 litre tank. Quote Link to comment Share on other sites More sharing options...
Jaxxnz Posted November 5, 2010 Author Report Share Posted November 5, 2010 i have had great success with jager heaters, for a 1000L i would recommend a 300W plus another 200W as a assistant heater. The 300W is rated for up to 1000L but i would say that would be ok if in a warm room. the other consideration is the 300W heater is a little over 50cm long so if that is not going to be suitable then maybe a couple of 250W or similar. I had 2x300w in the tank at the moment, i didnt knw the recommend wattage so when and grab 500w heater..so i over kill the dam thing? :roll: Quote Link to comment Share on other sites More sharing options...
hovmoller Posted November 6, 2010 Report Share Posted November 6, 2010 If you tell me the following I can use my heat loss calculator to calculate the max wattage you will need at the coldest time of year: 1. Dims of tank 2. Which sides and how thick is covered with polystyrene. 3. The temperature you want the tank at and the coldest the room its in will get over the winter Quote Link to comment Share on other sites More sharing options...
Jaxxnz Posted November 6, 2010 Author Report Share Posted November 6, 2010 If you tell me the following I can use my heat loss calculator to calculate the max wattage you will need at the coldest time of year: 1. Dims of tank 2. Which sides and how thick is covered with polystyrene. 3. The temperature you want the tank at and the coldest the room its in will get over the winter 1.8x.9x.8 laminated glass tank, is sitting on a 25mm HDpoly, temp 27-28 all yaer around, Thank Hovmoller Quote Link to comment Share on other sites More sharing options...
hovmoller Posted November 6, 2010 Report Share Posted November 6, 2010 No problem.. What is the coldest the room temperature will get to? No poly on back or sides? Quote Link to comment Share on other sites More sharing options...
Jaxxnz Posted November 6, 2010 Author Report Share Posted November 6, 2010 the tank is base at the underneath the stairway, its pretty cold during winter there. it for the look so there are no poly around, cheers, Hovmoller. Quote Link to comment Share on other sites More sharing options...
hovmoller Posted November 6, 2010 Report Share Posted November 6, 2010 Ok so the calculation is based on the following: (coldest time of year) Tank temp: 28 Room temp: 10 Bottom 25mm poly, all other sides uninsulated. At this scenario you will need a minimum of 740 watt total to keep the tank temperature stable.. Of course this is worst case scenario so if I were you I would keep the 500w in there and maybe put an extra 300w in during winter. Quote Link to comment Share on other sites More sharing options...
Jaxxnz Posted November 6, 2010 Author Report Share Posted November 6, 2010 sweet that mean i brought the 500w for a good reason. thanks Hovmoller Quote Link to comment Share on other sites More sharing options...
David R Posted November 8, 2010 Report Share Posted November 8, 2010 I'm going to run two 300W Jagers in my big tank, but its in an insulated room with several other tanks. Set the temp on the two 300W's a bit lower than the 500W so they only come on after a water change or if it really needs it. Quote Link to comment Share on other sites More sharing options...
the-obstacle Posted November 8, 2010 Report Share Posted November 8, 2010 Ok so the calculation is based on the following: (coldest time of year) Tank temp: 28 Room temp: 10 Bottom 25mm poly, all other sides uninsulated. At this scenario you will need a minimum of 740 watt total to keep the tank temperature stable.. Of course this is worst case scenario so if I were you I would keep the 500w in there and maybe put an extra 300w in during winter. Any chance you could do mine? tank is 1530 x 760 x 630 (I think) 50mm poly base and 25mm poly on 3 sides. under the house so could reach 0 degrees in winter. tank temp of 25. Quote Link to comment Share on other sites More sharing options...
hovmoller Posted November 8, 2010 Report Share Posted November 8, 2010 Any chance you could do mine? tank is 1530 x 760 x 630 (I think) 50mm poly base and 25mm poly on 3 sides. under the house so could reach 0 degrees in winter. tank temp of 25. Sure.. In that case you will need minimum 385 Watt heating... If we assume there will also be a layer of plywood or similar under the tank and that you will have a layer of sand/gravel inside then you are only saving 12w by using 50mm instead of 25mm under the tank.. and that is only at the very extreme part of the year.. I would put the tank on 25mm only unless you already have some 50mm lying around. If you do then the 50mm is better used on the back or sides of the tank. Here is a link to the calculator: (It's pretty straight forward to fill in but you need MS excel) http://www.fnzas.org.nz/uploads/media/Aquarium%20Heatloss%20Calculator.xls Quote Link to comment Share on other sites More sharing options...
hovmoller Posted November 8, 2010 Report Share Posted November 8, 2010 it for the look so there are no poly around Hey Jaxxnz.. No excuse for not insulating the back of the tank If you put 25mm poly on the back you could save $30/month during winter!! Quote Link to comment Share on other sites More sharing options...
the-obstacle Posted November 8, 2010 Report Share Posted November 8, 2010 There are big sheets at mitre 10 mega in 50 and 25 so i'll go grab one of them in 25 and that'll be me thanks heaps! Quote Link to comment Share on other sites More sharing options...
Jaxxnz Posted November 9, 2010 Author Report Share Posted November 9, 2010 Hey Jaxxnz.. No excuse for not insulating the back of the tank If you put 25mm poly on the back you could save $30/month during winter!! $30 really? hey that would be good, I get my from Styrobeck, Mitre 10 are ripp off :lol: Iam only half way doing my tank, i was planning to have a background like David R poly with coated concrete. Its now more than a 2week my tank still only half way filled.. :lol: Right now iam soo screw up with my sump tank! Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.