| 摘要 |
A tank heater for a storage tank is provided with a fuel fired burner assembly, a heat transfer tube extending from the burner assembly a substantial longitudinal extent within the storage tank for the transfer of heat to the contents of the storage tank and a combustion chamber within the heat transfer tube adjacent the burner assembly, the combustion chamber being constructed in the form of a plurality of concentric tubes in a configuration to control the rate of heat dissipation.
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