In one form of the invention the exhaust pipe forms a part of the heat exchanger reservoir in {HEAD ~ which case} leak {TAIL ~ preventive adhesive secures} the heat exchanger member to the pipe 
leak
In one form of the invention the exhaust pipe forms a part of the heat exchanger reservoir in { HEAD ~ which case } leak { TAIL ~ preventive adhesive secures } the heat exchanger member to the pipe
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH