In the embodiment of FIGS 5 and 6, it is seen that, if desired, the discharge hose or tube 228, which leads from heat exchanger, such as heat exchanger 20 or 120, can be selectively directed to {TAIL ~ either the windshield} or {HEAD ~ the rear window} 219 of an automobile 210 
In the embodiment of FIGS 5 and 6 , it is seen that , if desired , the discharge hose or tube 228 , which leads from heat exchanger , such as heat exchanger 20 or 120 , can be selectively directed to { TAIL ~ either the windshield } or { HEAD ~ the rear window } 219 of an automobile 210
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