are helixs'/ thermostats a must in a snake rack?
Quote:
Originally Posted by
FireStorm
The other issue with some on/off thermostats is that they don't continuously measure the temperature. They only check it at certain intervals (like once every minute, for example -each brand is probably different). So theoretically, depending on how often the thermostat checks, the heat source could actually get hotter than the set temp if it heats up fast enough. For example, if you have a thermostat that measures every 2 minutes, and you have it set at 90F, it may turn the source on when the temp is at 89F, and off at 91F, but if the heat source is able to get from 89F to 95F in that 2 minute period the thermostat won't do anything until it checks the temp again. Hopefully that makes sense. I think this is why some people have trouble getting temps stable with the really cheap on/off thermostats...they go longer in between measurements.
:) this is very true! Hydrofarm is notable. The slow probe response and weight of the probe make it very slow. This makes it a poor primary but a good backup/ failsafe!
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