Racks in Colder Climates

well i dont really understand what he is trying to say and i have no idea about his setup or room conditions, etc so i wouldnt be able to compare.

what i have learned from my cold basement(70-75F) is that if you want to use a rack with flexwatt for belly heat, then youre going to need something to warm up the ambient air, unless the room temperature is naturally 80 or above. in your case the air temperature is very low and a rack with flexwatt for belly heat will not be enough and you will need a space heater. you need to raise the ambient room temperature because if you dont you'll have tubs with a basking surface temp of 90F and an ambient temp of 60-something.

what i did at first before i had a room was put up a heavy duty curtain, from ceiling to floor, in one corner of the room and my rack heated with flexwatt and space heater was behind it. the area behind the curtain held a decent temperature at the time but heat did escape and it raised the entire room's temperature by a few degrees. i didnt really mind because the basement was cold anyways. im just throwing this idea out there because you said you had no spare room to dedicate to your animals so maybe this can be an option for you.

Has anyone had experience w/ the radiant flexwatt configuration? An example would be what Animal Plastics sells? Thoughts about this concept in relation to the colder room temp. concern?

As quoted: "Dual side radiant is the preferred heating choice. In this line of racks it is 4" flexwatt running down both inner sides of the rack about 25% of the way in from the back. This still provides a wonderful gradient of heat. This system actually heats the ambient air temperature inside the tub, not just the belly of the animals. It is a much safer and more efficient way to heat rack systems."

Again, any thoughts would be appreciated.
-J