Heated floors are becoming more and more popular as people are trying to "Go Green". Just like the new energy saving light bulbs the up front cost is more but it pays for itself in savings.
We have been using Nuheat the most lately but we also use SunTouch. We can get Nuheat at Mees Tile and Marble
it is available in many sizes and can also be special ordered. There are many options to radiant heat and if you can afford the upfront cost you should consider it.
We like to send our customers Hamilton-Parker Company because they have everything we need and its close to home. You can link to their site or call 614 358-7800 to talk to a designer.