Quote Originally Posted by BHReptiles View Post
For $7 more dollars, I would get this thermostat instead of a dial rheostat. With the dial ones, you always have to adjust the dial in order to keep proper temps with a fluctuating ambient temp. With this thermostat ( http://www.amazon.com/Hydrofarm-MTPR...arm+thermostat ), you just have to set the temp (I usually set mine to 89) and it will keep a much better temperature.
Good point. My house temp is pretty constant (A/C is set to 78 and most likely will be used thru September, sigh...) so that's not a concern. FWIW I really like the VT100's but the OP is concerned about cost...