Ok, so I finally am ready to put the snakes in the 3 tiered 4x2x2. I am using heat tape on each one with snap n lock flooring on top of it. All 3 set to thermostats. All pieces are in basement. Ambient temperatures in basement are at 67.5 degrees. Top cage is measuring 84 deg over top of heat tape. However, ambient temps are only 67.5 and 66 on cool side. Middle is even slightly cooler than those. These are no where near what temps should be. I was thinking of bringing an oil heater downstairs and hanging canvas to make a room of sorts until we can fix it long term. In summer temps are about 75-77 ambient in basement so I don't need to worry except in winter. However, its winter. We are putting a wood furnace in basement to supplement our heat which will turn ambient temps to 85 easily, but until that's completed I'm stuck. I'm taking suggestions, but I'm thinking the oil heater might be best. Right next to the 3 tiered cages is the 2 8x4x4 cages we've got. I've enclosed pictures to help. The LG cages, I have the heat tape under the snap n lock again.