They look alot alike, but I do not know if it is the same company. Same heating element for sure, basically a flat carbon resistor laminated in plastic. Same Watts per square inch.



The instructions say it can be used w/o a thermostat meaning the watt density of the heater is low. At "normal" room temperatures, the heater at full power will not reach dangerous temperatures. It is a nice feature to have a heater that isn't too powerful.



However, we must use some common sense here. If you were in that cage would you want a heater in there without at least some control? No. So use the Herpstat if nothing else as a safety high limit cutoff.



In Winter (for a boa, I use Ultratherms) they run on full power. I have them hooked up to a controller but the temp never gets high enough for the controller to actually kick in to limit the power to the heaters.



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Mark

[ Hide Replies ]

• Ultratherm vs Cobra heat nats - bakeaway, Sat Sep 12 11:42:16 2009
• RE: Ultratherm vs Cobra heat nats - markg, Tue Sep 15 11:47:07 2009
• RE: Ultratherm vs Cobra heat nats - bakeaway, Tue Sep 15 23:54:00 2009
• RE: one other question - bakeaway, Tue Sep 15 23:55:55 2009
• RE: one other question - markg, Wed Sep 16 13:25:28 2009