Yeah, I don't know what an incubator style calorimeter is. But I know of an amusing example of something like that. When Richard Oriani did his first experiment, he used a seebeck calorimeter that was designed to hold a baby. He told me that and I did a double take: "hold a what?!" A baby, no kidding. It must have been a big calorimeter. How did the baby breathe? I asked. I recall he said something like, "they didn't leave it in there for long." Apparently, a doctor or medical school loaned him the instrument.
Here is a "whole room calorimeter" for an adult. It measures O2, CO2 and H2O, as well as heat, I assume. The photo shows an ominous looking black crate-like box sitting next to a large gas tank, but I don't think they stuff the patient into the box. I think there is a room behind it.