A flexible tube leads from the chamber of the heat exchanger to the nozzle manifold and, thence, to the nozzle or nozzles for delivery of steam and heated {HEAD ~ liquid} to the windshield, to {TAIL ~ another window} 
to
A flexible tube leads from the chamber of the heat exchanger to the nozzle manifold and , thence , to the nozzle or nozzles for delivery of steam and heated { HEAD ~ liquid } to the windshield , to { TAIL ~ another window }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL