Hot Water Tank A storage gas-fired water heater is the most common type of appliance used to heat water in Alberta homes. These water heaters typically have a burner at the base and a glass or metal-lined tank. Controls at the base allow you to adjust the temperature and shut down or start up your tank. Most tanks have pilot lights (a small flame that burns continuously) that light the burner when the tank calls for heat. Some tanks have an electronic ignition. To select a temperature, choose the lowest temperature setting on the thermostat that will still provide you with an adequate supply of hot water. Consider turning the tank thermostat down to the lowest setting before going on holidays. Most electric tanks have a top and bottom element. Usually the reset buttons and adjustable temperature settings can be found under the cover plate. When making adjustments, do not make contact with the adjacent wire ends on terminals located near the temperature setting screw. Doing so could cause electric shock. If your tank stops working, check the fuse or breaker panel before calling a plumber or an electrician. Sediment that accumulates at the bottom of the tank (especially with immersion-type elements) can cause the heaters to operate longer than necessary. This increases your energy consumption. The tank should be flushed regularly in accordance with the manufacturer’s directions. Every hot water storage tank is equipped with a pressure relief valve at the top of the tank. This is a safety device designed to open and relieve pressure should the water pressure in the tank exceed its rated working pressure. Do not tamper with this valve. Each year, many children and seniors are scalded by hot tap water. Even slightly lower hot water settings can prevent tragic burn accidents. Even slightly lower hot water settings can prevent tragic burn accidents. PLUMBING 95