Depends on how cold the room will get I suppose, whether you need a CHE (gives off more heat) or a red bulb. I just need to use a red or black bulb, but your winters are probably far colder so maybe go with the CHE?

Black and red bulbs do not disturb my short tail, though. Also since the CHE will likely be too hot in the summer for you, you can clamp it onto something away from the enclosure. Then you can just slide the snake closer or further away from it depending on the room temperature. Like this summer my short tail will be far from the bulb or the bulb will be turned off. In the winter I have him scooted right up close to it. It's very simple to do if you have sliding space.