Today at the construction site the team was putting down a subfloor over the radiant heating tubes that will warm our house. One of the risks of having tubes of water in your floor is one of them getting punctured when flooring goes down. This is especially true once the floors the tubes are hidden.
The team was adding lines to the floor as they covered it, so that the finished floor installers will have a guide for avoiding the tubes. It’s simple enough, as long as the guide are in the right place.
This is where us got I interesting. They were using a gadget that does thermal imaging and clearly shows where the tubes are under the floor. This one is the Flir E6.
A friend has one of these on his boat so he can tell what parts of his engine are getting hot (or too hot).