| 摘要 |
A solar heater is formed from first, second and third sheets (12, 14, 16) of flexible material joined at or near their peripheries. The sheets define a liquid compartment (18) between the first and second sheets (12, 14), and a gas compartment (20) between the second and third sheets (14, 16). Each compartment (18, 20) has at least one closable opening leading into it. An insulative blanket (46) is removably located adjacent the first sheet (12) by suitable locating means (48). <IMAGE> |
