Multi-pass helical coil thermal fluid heater
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United States of America Patent
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-
Nov 9, 1982
Grant Date -
N/A
app pub date -
Nov 28, 1980
filing date -
Nov 28, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This invention relates to a multi-pass helical coil thermal fluid heater of improved thermal efficiency. The thermal fluid is heated while being circulated within concentric helical coils of the heater which are arranged in such a manner to improve overall thermal efficiency and simplify construction. Provision is also made for preheating of the thermal fluid and the heater combustion air to further improve thermal efficiency.
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