Heat exchanger unit and use
AssigneeOutokumpu Oyj
InventorsANDERS FALKENO, PER SANDBERG
Life of this patent
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Abstract
The invention relates to a heat exchanger unit to be used in a gas-fired water heater in which heater a heat exchanger unit contains tubes with fins. According to the invention the heat exchanger unit contains flat oval tubes (1, 21, 31) having a fin (3, 22, 32) at least on one flat part (4, 24, 33). The flat oval tubes (1, 21, 31) as well as the fins (3, 22, 32) are made of copper, copper-based alloy, aluminium or aluminium-based alloy.
Claims14
Heat exchanger unit to be used in a gas-fired water heater in which heater a heat exchanger unit contains tubes with fins, characterised in that the heat exchanger unit contains flat oval tubes (1, 21, 31) having a fin (3, 22, 32) at least on one flat part (4, 24, 33).
Use of a flat oval tube (1, 21, 31) with fins (3, 22, 32) made of corrugated strip in the heat exchanger unit of a gas-fired water heater.
Dependencies are inferred from the claim text.