| 摘要 |
Disclosed is a high efficiency hot air furnace including a heat exchanger assembly located in a heat exchange chamber through with comfort air is passed to be heated. The heat exchanger assembly includes a drum like combustion member located in th e flow path of comfort air. A supplemental heat exchanger or condenser is disposed in the flow path of comfort air upstream from the combustion member. A transfer channel extends from one end of the combustion member and communicates combustion products t o the condenser. The combustion member includes an insulating material on the insi de portion of the cylindrical wall. A diffuser is located within the combustion member which prevents the burner flame from extending into the transfer channel. The burn er includes a blower for urging combustion gases through the heat exchanging assembly. Intake air for the blower is provided by an air intake chamber. |
