Pentair Combustion Chamber Assembly for Max-E-Therm Heaters

The Pentair 474957 is the combustion chamber assembly for the Sta-Rite Max-E-Therm gas heaters, covering the SR200, SR333 and SR400. It is the genuine part, supplied as a complete assembly.

Where it fits

The combustion chamber is part of the Max-E-Therm burner system, the same group of parts as the flameholder, the insulation kit and the gas valve. Those are separate part numbers, so if the chamber has failed it is worth inspecting the rest of the burner system while the heater is apart.

Before you order

Confirm the heater is a Max-E-Therm SR200, SR333 or SR400. Burner and combustion work on a gas appliance belongs with a qualified technician: shut off the gas, make the repair, and verify combustion before the heater goes back into service.