| 摘要 |
<p>The hot water accumulation tank is for an air heating system, and is entirely closed. Between the top and bottom are a series of conduits immersed in the hot water contained in it and running vertically. The lower ends of the conduit and the tank bottom are at ground level, so as to admit air from outside and also from the room etc. to be heated. The tank can be arranged to rest on bottom supports forming passages lending from the outside and also from the room etc.</p> |
