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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0787498 (1977-04-13) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 5 인용 특허 : 1 |
A heating system comprises serially connected heating and holding coils connected in a closed heating liquid circulating circuit with a collector coil at the space to be heated. The heating and holding coils are disposed in a compartment wherein both are subject to direct heating by one or more gas
A heating system having communicating means leading to space to be heated comprising means defining a closed compartment with at least one gas burner assembly disposed in the compartment, said burner assembly having a high heat conducting and radiating flue gas discharge wall facing the interior of
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