The heater comprises at least one heater section intended for heating the shell surface , and is supported via a suspension attachment by means of a supporting means on {HEAD ~ a variable, second distance} from {TAIL ~ the shell axis}  
The heater comprises at least one heater section intended for heating the shell surface , and is supported via a suspension attachment by means of a supporting means on { HEAD ~ a variable , second distance } from { TAIL ~ the shell axis }
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 HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH