aquadude Posted September 10, 2009 Report Share Posted September 10, 2009 Is the above question a good idea thanks Bartering Rocks my world Quote Link to comment Share on other sites More sharing options...
R32GOTMLK Posted September 10, 2009 Report Share Posted September 10, 2009 hi is it 1 foot high and 1 foot wide? if so that makes it a 54L tank which a 50watt heater can handle Quote Link to comment Share on other sites More sharing options...
aquadude Posted September 10, 2009 Author Report Share Posted September 10, 2009 length 2 ft width 1 ft height 1 ft bartering rocks my world Quote Link to comment Share on other sites More sharing options...
Carlos & Siran Posted September 10, 2009 Report Share Posted September 10, 2009 I think the rule is 1 watt per ltr Quote Link to comment Share on other sites More sharing options...
aquadude Posted September 10, 2009 Author Report Share Posted September 10, 2009 with my tank size described two posts above can anyone estimate how many litres this tank would hold please Bartering Rocks my world Quote Link to comment Share on other sites More sharing options...
SamH Posted September 10, 2009 Report Share Posted September 10, 2009 54L (60x30x30). If it is the tank described to the left, I have the exact same size. I'm running a 100w aquaone heater, because my house can get quite cold. Quote Link to comment Share on other sites More sharing options...
Romeo Posted September 10, 2009 Report Share Posted September 10, 2009 Shouldn't be too bad coming into summer, may not be on much during the summer months ;]. Quote Link to comment Share on other sites More sharing options...
New_to_fish_world Posted September 10, 2009 Report Share Posted September 10, 2009 What about for 120LT tank what heater would I need for it.? Quote Link to comment Share on other sites More sharing options...
Deno Posted September 10, 2009 Report Share Posted September 10, 2009 What about for 120LT tank what heater would I need for it.? I'd run a 200w, it won't have to work as hard as a 100w Quote Link to comment Share on other sites More sharing options...
smidey Posted September 11, 2009 Report Share Posted September 11, 2009 i just received a 300W jager heater i ordered last week. I applied the 1 watt per litre theory so asked my LFS to get me a 300W jager. I have it & the box says its for tanks 600L to 1000L so that works out, at average 0.4W/litre (300W/800L). It may be best to see what size tank each heater is recommended for by its manufacturer as i'm sure they know more about it than we do. Quote Link to comment Share on other sites More sharing options...
Ira Posted September 11, 2009 Report Share Posted September 11, 2009 i just received a 300W jager heater i ordered last week. I applied the 1 watt per litre theory so asked my LFS to get me a 300W jager. I have it & the box says its for tanks 600L to 1000L so that works out, at average 0.4W/litre (300W/800L). It may be best to see what size tank each heater is recommended for by its manufacturer as i'm sure they know more about it than we do. Varies hugely depending on room temp, of course. And a 100 watt heater won't work any harder than a 200 watt. It will just cycle on and off less frequently, which means the thermostat, the only real wear item in them, will live longer. Quote Link to comment Share on other sites More sharing options...
smidey Posted September 11, 2009 Report Share Posted September 11, 2009 Varies hugely depending on room temp, of course. And a 100 watt heater won't work any harder than a 200 watt. It will just cycle on and off less frequently, which means the thermostat, the only real wear item in them, will live longer. surely the ratings of heaters must be uniformly tested (how they perform in normal conditions of use), if not throughout the industry it would be throughout a brand. If we put a tank in a room that is constantly colder than the tested conditions then obviously a larger heater will be required. Quote Link to comment Share on other sites More sharing options...
Ira Posted September 11, 2009 Report Share Posted September 11, 2009 surely the ratings of heaters must be uniformly tested (how they perform in normal conditions of use), if not throughout the industry it would be throughout a brand. If we put a tank in a room that is constantly colder than the tested conditions then obviously a larger heater will be required. Yes, it would be nice if they were, but they are not. Many "Ratings" for equipment, not just in the aquarium hobby, are 50% random conditions, 50%whatever marketing wants the results to be. Battery manufacturers will test their batteries at different current draws to get the capacity they want, computer power supply manufacturers will slap different rating stickers on the same power supplies depending on what the buyer wants, speed controllers for electric motors will be tested at different amounts of airflow for cooling and then the safety factor increased or decreased for whatever rating they want... Quote Link to comment Share on other sites More sharing options...
smidey Posted September 11, 2009 Report Share Posted September 11, 2009 i tend to beleive a company/product with jager written on it. Quote Link to comment Share on other sites More sharing options...
Ira Posted September 11, 2009 Report Share Posted September 11, 2009 i tend to beleive a company/product with jager written on it. Believe what? Believe that their tests in whatever air temperatures they used in whatever tank glass thickness and shape they used at whatever duty cycle they used would keep a tank at whatever temperature they wanted to use? Sure, it probably will. That's assuming they even did any actual tests rather than just just plugging the wattage into an equation. Quote Link to comment Share on other sites More sharing options...
smidey Posted September 11, 2009 Report Share Posted September 11, 2009 Believe what? Believe that their tests in whatever air temperatures they used in whatever tank glass thickness and shape they used at whatever duty cycle they used would keep a tank at whatever temperature they wanted to use? Sure, it probably will. That's assuming they even did any actual tests rather than just just plugging the wattage into an equation. i beleive that the heater i have purchased will be suitable for a 600L to 1000L litre tank. Quote Link to comment Share on other sites More sharing options...
phoenix44 Posted September 11, 2009 Report Share Posted September 11, 2009 the eheim 300W is suitable for use up to 1000L. I think it has something to do with how massive the coil is. I dont know why, but good on them for doing it that way :lol: Quote Link to comment Share on other sites More sharing options...
smidey Posted September 11, 2009 Report Share Posted September 11, 2009 o know but it seems some doubt that. the coil is around 400mm long & the heater is over 500mm over all. Quote Link to comment Share on other sites More sharing options...
phoenix44 Posted September 11, 2009 Report Share Posted September 11, 2009 oh. it works on a 1000L tank fine. I set them up many many times. I always recommend another as a back up, but 1 works fine. must have good water flow though Quote Link to comment Share on other sites More sharing options...
Ira Posted September 11, 2009 Report Share Posted September 11, 2009 i beleive that the heater i have purchased will be suitable for a 600L to 1000L litre tank. Fair enough. the eheim 300W is suitable for use up to 1000L. I think it has something to do with how massive the coil is. I dont know why, but good on them for doing it that way :lol: The only effect coil length has is on how hot the heater gets when operating. 300 watts(We'll assume for now that is the correct amount of heat being created) spread over a larger area=lower temperature than over a smaller area. But even short ones if you put your hand on them once they've been on for a little while are usually only warm. They quickly heat up because your hand doesn't carry away heat as quick as water though. But a longer coil is good if you have it leaning against something or it drops onto the gravel, keeps the hotspots that will develop from being as hot. Quote Link to comment Share on other sites More sharing options...
phoenix44 Posted September 11, 2009 Report Share Posted September 11, 2009 hmm. that makes sense. so does that just mean it is on for longer? Quote Link to comment Share on other sites More sharing options...
Ira Posted September 11, 2009 Report Share Posted September 11, 2009 hmm. that makes sense. so does that just mean it is on for longer? Errr...No, the same amount of heat goes into the water, it's just spread over a larger area. Quote Link to comment Share on other sites More sharing options...
phoenix44 Posted September 11, 2009 Report Share Posted September 11, 2009 sorry, no I mean- a 300W - x brand for eg will only do a max of say 400L so an eheim 300W will be on for longer to heat the same amount of water? Quote Link to comment Share on other sites More sharing options...
smidey Posted September 11, 2009 Report Share Posted September 11, 2009 does a 50w heater coil emit the same heat per mm as a 300w coil per mm? Quote Link to comment Share on other sites More sharing options...
Cricketman Posted September 11, 2009 Report Share Posted September 11, 2009 i tend to beleive a company/product with jager written on it. Jager-meister!?! Quote Link to comment Share on other sites More sharing options...
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