Appeal No. 97-2642 Page 25
Application No. 08/094,461
tank 25. The holding tank 25 stores hot water produced by the
system which is returned to the tank 25 from the heat
exchanger 13 via a hose
connected to a copper tube 26 which is an extension of the
copper tube 23 on the primary or input side of the heat
exchanger 13. The pump 24 draws water from the bottom of the
holding tank 25 and pumps the water through the copper tube 23
in its path around the various exhaust pipes. After passing
around the exhaust pipes in contact therewith the copper tube
23 is connected via a hose to an inlet 27 in the outer tube 14
of the heat exchanger 13, adjacent one end thereof. Water in
the copper tube 23 therefore enters the water jacket 20 and is
able to pass along
the length of the heat exchanger 13 to an outlet 28 at the
opposite end of the heat exchanger 13. Once passing out of
the heat exchanger 13 the water returns to the holding tank 25
from which it may be drawn on to the remainder of the system
(not shown) or recirculated by the pump 24 to be further
heated.
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Last modified: November 3, 2007