Moreover, because pressure may build up adjacent to closed end 46 of heater tube 42, {HEAD ~ more heated exhaust} may be discharged from openings 48 adjacent to closed end 46 than from {TAIL ~ openings} 48 located adjacent to open end 44 
discharged from
Moreover , because pressure may build up adjacent to closed end 46 of heater tube 42 , { HEAD ~ more heated exhaust } may be discharged from openings 48 adjacent to closed end 46 than from { TAIL ~ openings } 48 located adjacent to open end 44
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH