S100   Model Cost/Unit Inlet Gas Pressure Maximum W.C. Minimum W.C. S100 $1,1000.00 Propane 14" W.C. 7" W.C.     Natural 14" w.c. 7" W.C. S&H     $80./ unit
		S100 > Safe fuel shutdown if combustion air is interrupted > Low housing temperature > Quick change from LP or Nat gas / handle > Safe monitoring of combustion, one trial > Electronic ignition w/ 1.0 second shutdown > Protects heater by shutting down if unit is overfired