| 摘要 |
<p>The invention relates to a solar heater having a built-in tank which includes a box (1) that is preferably square, made up of four sheets (3) and a bottom cover (6) which form a square frame (5) that is open at the top end thereof and is covered with at least two glass panels (20, 25), and a container (10) that is coupled to the inner portion of said box (1), and which comprises inlet and outlet pipes; wherein the space between the container (10) and the insulation-clad (9) walls (8) of the box (1) is covered with small volcanic rocks.</p> |
