| 摘要 |
PURPOSE: A heat absorption mechanism of exhaust gas is provided to heat air flowing into a gas boiler by absorbing heat from exhaust gas of a burner and to improve thermal efficiency by heating indoor air. CONSTITUTION: A heat absorber(9) is mounted in the middle between an exhaust pipe(5a) and a feed pipe(7a). A case(90) has a space(92) therein, a couple of connecting member(91a,91b) outside and a drain valve(94) for draining a condensate. A pipe(95) is mounted in the case with a couple of connecting members(94a,94b) having both ends exposed to the upper outside of the case. One(94a) of the connecting members is connected with the exhaust pipe of a gas boiler while the other one is coupled with another exhaust pipe(5b). The connecting member(91a) is connected with the feed pipe(7a) while the other connecting member(91a) is coupled with another feed pipe(7b). The heat absorber raises indoor air by absorbing heat from high-temperature exhaust gas. The heat absorber heats the air sucked into the gas boiler. Therefore, the heat absorber enhances thermal efficiency.
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