Heater size for 10 gallon aquarium

I have a 10 gallon tank in my dorm room (which is about 50°) and 50w heaters keep dying on me, I have a 10w and I 7.5w in there as back ups right now (they are keeping it 62°). Needless to say I need a heater NOW. Would a 100w be too much once I take the tank somewhere warmer this spring?

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I do not think it would be too much.

 

The thermostat would shut it off when it reached it's temp. While a 50 watt heater would be normal for a 10 gallon tank, you need the 100 watt as your room temperature is much lower then the temp you need in the tank. Most heater watt suggestion assume that the tank and room temps aren't more then 10 degrees apart.

I highly recommend the Aqueon Pro heaters, they work great, reliable, plastic housing (so no broken glass to worry about), and the green/red LEDs are helpful to know when your heater is actively heating the water. Here is a link....

 

I would love to get the Aqueon Pro but it's a little out of my price range. I was looking at a Fluval one.

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jenema, everyone has their preferred brands. I also recommend Aqueon Pro's, but Fluval makes great products as well.

 

The Hydor Theo is a pretty good heater for it's price.

 

I'd say definitely get a 100w heater. With an ambient temp of 50*, you'll need it to keep your tank in the mid 70s. The 50 watts may be dying because they're constantly on trying to maintain the temp.