A floatable metal heat tongue mounted for vertical floating movement within a holder which is adapted to deliver {HEAD ~ heat} to {TAIL ~ the heat tongue} 
A floatable metal heat tongue mounted for vertical floating movement within a holder which is adapted to deliver { HEAD ~ heat } to { TAIL ~ the heat tongue }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL