True, that's why you have two of them. But no heat is much better than super heat. I always run two heaters. I run 2 x 800W on my system.
Plus with the controller, you have alarms for out-of-state conditions. With mine there are audible alarms, email messages, and screen prompts at my office PC.
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Jonathan--DIBS Breeder and Card carrying member of the Square Skimmer Brigade
(Click on the Red House to see my pics garage)
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