{HEAD ~ The unburned particulate accumulation} within {TAIL ~ the exhaust} for a combustion system, such as the liner of a flue for a stove, is monitored by a circuit which receives a temperature indicating signal from a thermo couple mounted within the flue 
within
{ HEAD ~ The unburned particulate accumulation } within { TAIL ~ the exhaust } for a combustion system , such as the liner of a flue for a stove , is monitored by a circuit which receives a temperature indicating signal from a thermo couple mounted within the flue
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL 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 OTH OTH