{HEAD ~ Heat exchanger} 40 in this embodiment is {TAIL ~ a thermoelectric cooler} capable of pumping heat from a cool side to a hot side of the device 
is
{ HEAD ~ Heat exchanger } 40 in this embodiment is { TAIL ~ a thermoelectric cooler } capable of pumping heat from a cool side to a hot side of the device
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH