Condensation in heaters

[shawmutt]

So I finally got around to cleaning my tanks, and noticed moisture droplets in my submersible heater. This means I got a leak, right? Could it just be condensation because of the cooling room temperature?

I'm looking at getting new heaters anyway, I want ones with an external control.

 

[TomK2]

Sounds like a leak to me. Like your wristwatch, condensation inside means a bad seal somewhere. I would buy a new one.

 

[shawmutt]

How's this bad boy look? I'll be getting a 150W for my 30gal and a 50W for my 10gal.

 

[jrp1588]

never heard of the brand, but it's cheap...and I'd assume steel is more durable than glass...haha

 

[greenmaji]

check out these
http://www.marinedepot.com/aquarium_heaters_won_brothers_pro-heat_titanium.asp?CartId=

 

[mattrox]

Aren't heaters made with a double glass layer? I thing the condensation is due to moisture in the air between the glass and the temperature difference between the heating element and the water. I have see this many times on different heaters that were working properly. I have never worried about it when I have seen it.

 

[greenmaji]

I would inspect it closely to see if the condensation appears to be on another layer of glass as mattrox suggests.. I have seen this before.. I just didnt give it alot of thought..
you did say you wanted a replacement.. and won bro's have high reviews.. that would explain the price..