FIELD: heating systems. SUBSTANCE: hot-water boiler has shells, water jackets 3, chamber 4 with fire tubes 5, gas ducts 6 and 7 and connecting branch pipes. During burning of fuel, not gases flow through fire tubes 5 of water chamber 4 and gas passage 6 reversing in upper portion and gas passage 7 and giving up their heat to heat-transfer agent through walls of shells 2. Provision is made of free flow of hot gas around outer shells 1 due to free arrangement of boiler in brickwork. EFFECT: enhanced reliability. 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| HOT-WATER BOILER | 0 |
|
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