| 摘要 |
PROBLEM TO BE SOLVED: To facilitate regulation of a hot water temperature while eliminating attached units and materials by recirculating a part of a hot water returning from a hot water return circuit through a hot water recirculation supply circuit, thereby preventing temperature fluctuation at a heating section or deformation of floor, and the like. SOLUTION: Hot water from a heat source machine 1 is fed through a hot water plug 5, a hot water supply hose 4a, a hot water recirculation means 9, and the like, to a hot water carpet 2 thence to a hot water return hose 4b and a bypass pipe 10 where a part of hot water is introduced to the hot water recirculation means 9. The hot water flows from an inlet 12 into the recirculation means 9 and ejected from a nozzle to an ouffet 16. A part of return hot water is passed through the bypass pipe 10 by the ejector effect and mixed with supply hot water from a nozzle opening 13a. Since return hot water from the hot water carpet 2 is mixed with supply hot water, temperature of the supply hot water flowing from the outlet 16 into the inlet of a hot water pipe 2a is 60-65 deg.C and it is about 55 deg.C at the outlet. Temperature difference between the inlet and outlet is decreased to 5-10 deg.C. Furthermore, the temperature can be set at an appropriate level.
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