| 摘要 |
Apparatus for heating water in a reservoir, comprising a pipe system including at least one supply conduit, at least part of which pipe system is disposed in the vicinity of the surface of the water in the reservoir, means for supplying hot air through the supply conduit to the pipe system, a plurality of open-ended tubules of flexible material or hoses being secured in spaced relationship to the pipes of the pipe system, the open ends of which tubules or hoses are located under the water surface.
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