摘要:
The present invention discloses a gas water heating appliance including a housing, a burner, a heat exchanger, an air supply fan, and an air pressure switch. The burner is disposed in the housing to generate heat. The heat exchanger is adapted for absorbing the heat and transferring the heat to water passing therethrough. The air supply fan is disposed in the housing for supplying air to the burner. The air pressure switch has a negative pressure port and a positive pressure port; wherein the negative pressure port is connected to the air supply fan via a first tube, and the positive pressure port is connected to atmosphere via a second tube. Since the pressure exerted by the adverse winds can also be detected at the positive pressure port, the pressure change at the negative pressure port is counterbalanced by the pressure change at the positive port, therefore, the air pressure switch would not be affected by adverse winds, and the misoperation to the appliance caused by adverse winds can be avoided.
摘要:
The present invention discloses a flue pipe assembly for a gas appliance including at least a first pipe section and a second pipe section, and a first electrical conductor and a second electrical conductor attached to the first and the second pipe sections respectively. The first electrical conductor is electrically connected with the second electrical conductor via an electrical connector assembly when the first pipe section is assembled with the second pipe section in a longitudinal direction. The first and the second pipe sections are movably connected in the longitudinal direction to adjust the total length of the flue pipe assembly.
摘要:
The present invention discloses a gas water heating appliance including a housing, a burner, a heat exchanger, an air supply fan, and an air pressure switch. The burner is disposed in the housing to generate heat. The heat exchanger is adapted for absorbing the heat and transferring the heat to water passing therethrough. The air supply fan is disposed in the housing for supplying air to the burner. The air pressure switch has a negative pressure port and a positive pressure port; wherein the negative pressure port is connected to the air supply fan via a first tube, and the positive pressure port is connected to atmosphere via a second tube. Since the pressure exerted by the adverse winds can also be detected at the positive pressure port, the pressure change at the negative pressure port is counterbalanced by the pressure change at the positive port, therefore, the air pressure switch would not be affected by adverse winds, and the misoperation to the appliance caused by adverse winds can be avoided.
摘要:
The present invention discloses a flue hood accessory adapted to be attached to an indoor gas appliance such that the indoor gas appliance can be installed for outdoor use, wherein the gas appliance includes a housing and a flue pipe extending outside the housing. The flue hood accessory includes an outer cover and a fixing mechanism. The outer cover has a cover plate that covers above an outlet of the flue pipe, and a smoke exhaust port provided on the portion of the outer cover other than the cover plate for exhausting flue gas. The fixing mechanism is so configured to detachably fix the outer cover to the housing or the flue pipe of the gas appliance. Existing gas appliances suitable for indoor installation can also be installed for outdoor use by using a detachable flue hood accessory. Therefore, the costs for developing, manufacturing, and usage can be greatly reduced.