| 摘要 |
<p>A flue control for fluid fuelled heaters, to minimise heat losses through the flue when the burner is not operating, comprising a pressure or electric solenoid operated damper or baffle, operable, upon the sensing of a predetermined temperature or pressure condition within the heater, to selectively open or close the damper or baffle thereby optimising fluid fuel consumption. The pressure or electric solenoid operated damper or baffle is responsive to changes in pressure of fluid fuel entering a burner for combustion. </p> |
