I would be concerned about the water feature growing unpleasant bacteria and introducing it to the air during evaporation. I don't like or trust hydrofarm T-stats they perform ok under a very narrow set of conditions (I have 7 used for fail safes and photo related water baths) generally they are no accurate and have a large hysteresis and swing. I would no suggest one simply as they are not a flexible product there are too many occasions where they do not operate well at all. I would recommend a herpstat intro it is a fully proportional unit and has no hysteresis and little to no swing under any conditions. The HS1 is a great unit if it was in the budget more safety features than any other unit on the market other than another herpstat. I would also recommend a ultratherm under most conditions they only get to 100ºF typically so a burn is very unlikely the downside is with heavy bottom enclosure and cool room it may not get hot enough to deliver 90º in the enclosure.








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