What is a good heater for a 75g reef?

[westwind]

I am looking for a heater for my 75g reef tank, any suggestions? I just placed the order for my Eheim 2229 wet/dry. I never really needed a heater in FL because the temp in the house was usually around 78 anyway. Now I am in MA, and winter house temps are going to be 65-72.
Should I by an in-line one or the in tank stand one? I am finding it difficult to find a heater for a 75g tank too?!
Thanks!
westwind

 

[catawaba]

***) I always choose a fully submersible one that is rated at about 4-5 times the size of your tank....and I divide that in half and buy two heaters. So, for a 75g, I'd get 2 of the 150w or 200w.

 

[jessecnc]

Just for reference I am using (2) 200W submersible heaters on my 90g. w/ sump. This way if one fails, the temp can only climb or fall so much.

 

[f14peter]

What I've read is that 3w/gal is a good starting point, and there's a couple of advantages to having multiple heaters, as well as overage in wattage. With two (or more) heaters, as Jesse mentioned if one fails at least there's another going to help keep the temp up until the failed unit can be replaced. Also, the multiple heaters dispurses the heating elements so that heating occurs not just in one place.
Also, by going with higher wattage heaters, they won't have to work so hard to maintain a given temp.
Using the 3w/gal forumula, my 90g needs 270w but I'm going with two 200w heaters (400w total) with one in the tank and one in the sump.

 

[gatorcsm]

What is the temperature of your system without any heaters? You only need enough heat to keep the tank from dropping too much at night (and kind of keep a steady temperature.
I don't like using heaters unless there are 2 layers of protection (the built-in temperature control, and a controller such as an aquacontroller).
The other option, which i've done in the past (but two controllers is preferrable (i don't use heaters anymore anyway...) is to have a few very very underrated heaters that can just help keep the tank from getting too cold at night, but with multiple heaters, it allows for one to fail and not to cook the tank. If you have one 350w heater, and it fails on.. it won't take long for it to get pretty hot. The other design in having multiple heaters, is to have one turn on at say 78 to suppress the cooldown. Then a second kicks in at 77 and then a last kicks in at 76. If you have an aquacontroller or the sort, you can do it in .5F increments, which i did for a winter when the tanks were outside. I had 6 350w heaters that kicked on in heater banks.

 

[fishnerd]

Brand wise, I swear by Ebo Jager