Copyright Goodheart-Willcox Co., Inc. Chapter 12 Radiant Heating Systems 263 offer web-based access for remote monitoring and control through the Internet. These controllers typically incorporate solid-state switching relays for the control of individual zone valves and system circulating pumps, Figure 12-49. By combining several or all of the above-mentioned con- trols, the radiant heating designer can develop a system that is effective and efficient while also being user-friendly. More resources on creating and designing radiant heating systems are available from the many manufacturers that offer these types of controls. 12.8 Radiant Heating for Snow and Ice Melt Systems Applications for radiant heating are not limited to wall, ceiling, and flooring systems. A very practical use for radi- ant heating systems is for snow and ice melt. These types of systems have become quite popular for today’s homes and businesses as a cost-effective and convenient method of automatically clearing snow and ice from many types of outdoor surfaces, Figure 12-50. With snow melt systems, shoveling is virtually eliminated. In addition, the use of chemicals for snow and ice melting is reduced or eradicated. Liability issues resulting from slip-and-fall accidents and personal injury due to slippery or snow-covered walks and drive- ways are also minimized. Controller Zone valve Room temperature sensor Circulator pump Pump relay control board Boiler control Goodheart-Willcox Publisher Figure 12-48. Microprocessor controllers are used to control zone valves and circulating pumps in radiant heating systems. Goodheart-Willcox Publisher Figure 12-49. An example of a microprocessor controller.