I don't see anywhere where that was a lecture.. I was just stating that No, you cannot use them in non-heated, non-humidified rooms.

I believe they do come with tubs, but it would be best to ask FB that question. Backheat isn't very efficient and belly heat would be best. I'm sure they could put belly heat on for you, since I've seen some of the FBs do have 3-4" flexwatt as belly heat.

Have fun heating the room to 80 (wouldn't be hard here, just open the window)