Thank you for the reply but,what I'm looking for is a way to use the controls that are already on the cooler, I already have a heat source.(I just reversed the polarity on the unit itself).The LCD (thermostat) control has a high limit of only 56°F and I want to change that to 125°F or so is this possible? There is a board on the back that controls the thermostat,both fans,the LCD display,and the interior light. As of right now the unit doesn't cycle on/off since there is no way for me to set the temp.