Robot vacuums are fine on radiant heated floors.

Yes, they work. Radiant heating doesn’t get hot enough to damage the robot’s electronics or battery under normal use. The floor surface typically stays below 85°F—about the temperature of a warm sidewalk in summer, not a danger zone for consumer electronics.

The bigger concern is thermal expansion of the flooring, not the robot. If you have tile or engineered wood over radiant heat, the floor expands and contracts. That could affect how a robot’s cliff sensors read gaps or transitions over time, but that’s a flooring issue, not a vacuum problem.

One thing to watch: if the robot docks on a very warm part of the floor while charging, the battery will charge slower and degrade faster. Keep the charging station in a cooler spot, or just don’t worry about it if the whole floor is evenly warm.

Don’t overthink it. The vacuum doesn’t care.