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