{HEAD ~ 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 a variable, second distance from {TAIL ~ the shell axis}  
{ HEAD ~ 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 a variable , second distance from { TAIL ~ the shell axis }
HEAD HEAD HEAD HEAD HEAD HEAD 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 OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH