| 摘要 |
PURPOSE:To provide heating effect by a method wherein hot water in a bath tub is circulated through a hollow grid. CONSTITUTION:A bath tube 1 and a grid 2 having a hollow inner part to enable hot water to be circulated therein are connected to each other through rubber hoses 3, 4 and a stopper 5. An L-shaped pipe 6 is provided in holes 7 and 8. Water in the grid 2 passes through the rubber hose 3, passes through the pipe 6, enters a gas boiler 9 and is heated there. The hot water exists a hole 10, enters the bath tube 1, passes through the rubber hose 4 and returns to the grid 2. Repetition of this circulation flow makes a hot grid. In this way, even in winter season, feet or legs and surrounding atmosphere are warmed to make a comfortable situation.
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