{TAIL ~ A heating or cooling element} is disposed within {HEAD ~ the housing proximate} the cavity to heat or cool the cavity 
{ TAIL ~ A heating or cooling element } is disposed within { HEAD ~ the housing proximate } the cavity to heat or cool the cavity
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH