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The AO SMITH 100112540 is an 18-inch natural gas final burner assembly kit designed for heating applications. This kit features a #32 orifice for optimized combustion and efficient heat exchange within gas-fired boiler systems. The assembly ignites and controls the gas flame in the boiler firebox.
Ideal for use in gas-fired heating systems, the AO Smith burner assembly is essential for maintaining system performance.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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