Originally Posted by eastendershomebrew
is it possible to make this into a 2 stage temp controlleR?
well, it will function as both, but of course you have to set the function to 'heat' or 'cool' on the thermostat. and i could swear i remember reading somewhere that if you use two SSRs or something, you can get it to function that way... but it's a vague memory.
what will you be using it for? if it's a fermentation chamber, you should be able to use one of the other without too many problems. i have a dual stage temp controller that i've used for fermenting and for kegerator temp control, and i've never had to have it set up as a simultaneous cold/heat unit. my basement is typically around 60 degrees, so i either turn it to heat to ferment warmer, or cool to ferment lagers. and if you will be using this for cold temps, make sure you get a thermostat that goes down that far. I cannot use mine for a kegerator, it only goes down to like 45 or so.