PORTABLE GAS WATER HEATER Russian patent published in 1997 - IPC

FIELD: heat-power engineering; domestic heaters for running water. SUBSTANCE: water heater has housing 1 made in form of vertical flame tube of rectangular section inside which water-tube sections are arranged; tube sections are assembled from straight parallel tubes 2 located in stages. Tubes 2 of sections and stages are interconnected by means of horizontal dispensing and receiving headers 3 located on two opposite walls 4 and made in form of recesses on outer surfaced of these walls closed with covers 7 on the outside. Upper and lower headers are provided with water supply and discharge branch pipes 5 and 6. Transverse horizontal partitions 8 made in form of baffle plates for zigzag flow of heat-containing gases from one stage to another through apertures 10 formed between edges of baffle plates and walls of headers are mounted in alternating pattern between stages of sections. Heat-containing gas receiver 11 made in form of contraction is provided at the bottom of housing, adjustable damper 13 for escape of used heat-containing gases being provided at the top of housing. On the outside, housing is provided with protective casing 15 with heat-insulated layer 16. EFFECT: enhanced ease and safety in use; sufficient capacity. 6 cl, 3 dwg