The Quantum 95M-200 is a 95 percent AFUE modulating condensing boiler that can utilize either natural gas or propane. It is fully modulating from 80 to 200 MBtuh and has easily accessible front-mounted controls. The boiler features a one-piece cast aluminum heat exchanger. The sealed combustion design allows the boiler to be vented with PVC pipe. A simple control scheme permits the boiler to be easily maintained. One circulator can service the boiler and all zones. The factory-installed, probe-type low water cutoff control accurately senses the water level to help prevent dry firing. The boiler is eligible for a federal tax credit.