If I install WarmWire in only part of my floor will the heat spread?
No, so plan ahead. If your floor area is 5 feet wide, and you only heat the 3 feet in front of the sink, the rest of the floor will be cold and stay cold. The heat will only radiate 1-1/2 inches. Consider heating all the areas you walk or stand. A radiant floor feels so good that adjoining areas without heat FEEL colder and are quite noticeable and uncomfortable. Install the wire right up the face of vanities and into the kick space where your toes will be. Install 4-6 inches from the wax ring of the toilet and 3-4 inches from where you emerge from a shower or bath – OR, better yet, heat your shower floor too! Once you try WarmWire, you will be addicted to heated floors!