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By Canada. Office of Energy Efficiency

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Some of the other tasks that should be performed by a serviceperson during regular maintenance are as follows: • inspecting the inside and outside of the vent pipe and stack • checking the condition of the furnace heat exchanger • checking the safety controls for the exhaust system • checking the other safety controls • checking the condition of all fan wheels – circulating, exhaust (induced draft fan) or forced (burner) – and cleaning them, if necessary • cleaning or replacing the air filter for forced-air systems Separately, many gas utilities or dealers may also offer a parts-replacement plan, which, for an annual fee, covers repair, adjustment or replacement of controls, motors and parts.

When compared with electricity, one of the principal advantages of a gas-fired water heater is its cheaper operating cost. The overall efficiency of a gas-fired water heater is measured by the energy factor, which takes into account standby losses, combustion system efficiency and recovery efficiency. Most direct heat loss from water heaters is made up of losses by air and heat flow up the flue, both when the burner is firing and when it is not; by heat conducted through the tank walls and base; and by hot water convection losses through the hot and cold water feed pipes.

Whether you plan to do it yourself or hire a contractor, this 134-page book can help make it easier. Fact sheets are also available on air-leakage control, improving window energy efficiency and moisture problems. Consider getting an expert, unbiased evaluation from an EnerGuide for Houses advisor before you renovate. Our telephone operators can connect you with an advisor in your local area. Many people enjoy using gas barbecues in the summer months. In a relatively recent development, a natural gas line can be brought to the backyard, where quick-connect fittings allow you to connect the gas line directly to a gas barbecue.

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