I recently moved from a basement that wasn't heated to a garage. The basement held house heat pretty well. It never got below 50. Now that I have my business in a detached garage I am concerned about what temp it should be for the sake of the laser. The garage is insulated but temp is about 55 as we are now into fall in New England. My concern is winter temps. What's the best temp for a laser either in use or not in use?