heaters: inline versus submersible - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 4 Old 05-24-2012, 05:40 PM Thread Starter
heaters: inline versus submersible

hi everyone,

i am in the process of selecting a heater for a 40 gallon breeder tank i am setting up. i have looked all over for stats and such on these heaters but i wanted actually subjective thoughts from people who know about or own them. right now on my 10 gallon i have a submersible heater which is very reliable. it heats a little high but besides that no major issues.
the inline heater i am looking at is the hydor 200W or 300W heater. any experinece with it? worth the money? tips or tricks?
and the submersible one i am looking at is a 200W or 300W eheim jager.

bottom line for me is why one over the other? any thoughts, comments, suggestions, tips and tricks are great :)
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post #2 of 4 Old 05-24-2012, 07:21 PM
Geomancer's Avatar
Both will work, I've heard good things about inline heaters. Their big advantage is they are hidden behind the tank, so one less thing cluttering the inside of the tank.
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post #3 of 4 Old 05-24-2012, 10:01 PM
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Inline heaters might need to be taken apart for cleaning occasionly. What would concern me is: what type of seal does the product have to prevent water from reaching live electrical parts? If the product is sealed with material simular or the same as a submersable, then I would be ok with that. But if it has an O-ring or gasket material to protect the electrical parts; I would stay away from it.
If they fail you have a problem.
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post #4 of 4 Old 05-24-2012, 10:08 PM
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I have a Hydor ETH inline 200w hooked up to my RENA XP4 on my 75g tank, The only thing you have to watch out for is there are two version of the 200w, one that fits a 1/2 Inner Diameter Tube and one which fits a 5/8 Inner Diameter. The latest models ship with connections to fit any canister filter or flexible tubing.

Never had any problem with them, you CANNOT take them apart to clean them but if your Canister is working correctly (they go on the Outflow line) not the Inline, there is no problem with them.

They can also be run either Horizontally or vertically, although the recommendation is vertical.

10g Fry / Hospital / QT tank (as needed)

75g Saltwater Reef, Ocellaris Clownfish, Lyretail Antias (baby), Lemon damsel, Longtail Fairy Wrasse, purple dottyback, snails, crabs and a few LPS corals.

220g Still sitting empty (come on Lottery I need the numbers to come up!)
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