As far as heat goes, some can get by with just a heat pad on the hot end hooked up to a thermostat but you said it gets cold there so you might be like me and need more than that. We keep our place cold and room temperature is too low for my ambient/cool end so I use a shop light with a 75 watt red ZooMed light in it, facing the cool end and even though my place is around 70 degrees, this light keeps the tub at a steady 80 degrees on the cool end