16
CHAPTER
Electric Water Heaters
Electric water heaters are heat-producing appliances. They normally have two heating elements (Figure 16-1), with each element controlled by a thermostat. The thermostats are mounted on the outer wall of the water heater tank just above the elements, from where they sense the temperature of the water through the outer wall of the water heater tank. A temperature and pressure-relief valve, which is mounted on the outside of the tank, is a device applied to a water heater, which will open to pass water or steam if excessive pressure or temperature occurs in the water heater tank.
FIGURE 16-1 Exploded view of the ...
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