Interesting idea! I prefer to stay cold otherwise I do have red heat lamps in the barn that we use in our chicken brooder. The cost of the medical devices isn't that much more expensive and have a significantly lower operating cost being LEDs, and much safer if you've got little ones around.

It would be interesting to compare the wavelengths generated between the two. My hunch is the heat lamp might have a wider band of red light? 🤷 The medical devices target two specific bands from what I understand.