| 摘要 |
An oil consumption meter for an oil-burning furnace with a burner motor, comprises a user accessible memory for storing the rate of oil consumption of the furnace, a sensor means for generating a signal when the burner motor is in operation, a processor responsive to the sensor signal to calculate the oil consumption from the time said burner motor is in operation, and a display for displaying the oil consumption as calculated by the processor. The meter can be easily retrofitted by the homeowner without the need to be plumbed or wired into the furnace circuitry.
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