This permits {HEAD ~ an effective transmission} of {TAIL ~ heat} into the hose and the tempering device 
This permits { HEAD ~ an effective transmission } of { TAIL ~ heat } into the hose and the tempering device
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH