Radiant Panel Heating
Forced hot water can also be used in a radiant panel heating system (Figure 7-9). In this heating system, no radiators or convectors are used. The hot water circulates through pipes concealed in the floor, ceiling, or walls, which function as heat-emitting surfaces. Radiant baseboard systems are also used. The principles of radiant heating are described in greater detail in Chapter 1 of Volume 2, “Radiant Heating.”
ZONE 1 ZONE 1 THERMOSTAT ZONE 2 THERMOSTAT
Figure 7-8 Zoning a two-pipe forced hot-water heating system. Thermostatically actuated zone valves are installed on the main water supply line.