12. Radiant Heat Rocks
Richard Trethewey is especially proud that TOH was the first home-improvement show to demonstrate the right uses and materials for this heating method, which typically relies on hot-water pipes or electrical cables under floors to heat up chilly rooms, as shown here in the 1998 Milton project. "When done correctly, radiant heating is a lot more efficient and effective than heating up air and delivering it throughout a house, which is what many HVAC systems do. It has made lots of people more comfortable in cold-climate homes," he says.