Reznor 11833 Orifice

The Reznor 11833 is a precision-engineered #44 main burner orifice designed specifically for natural gas heating applications. As a critical component in the combustion manifold, this OEM Reznor part ensures accurate fuel-to-air ratios, facilitating stable ignition and clean burning within your HVAC unit heater. This specific orifice size is frequently utilized in unit heater maintenance and gas conversion kits for models such as the FT and SFT series, or as a direct replacement in UDAP and UDAS systems where a #44 drill size is specified for peak BTU output. For technicians performing gas manifold adjustments or system overhauls, the Reznor 11833 natural gas orifice provides the required tolerance to maintain input ratings without the risk of over-firing or carbon buildup. Durable brass construction offers long-term resistance to thermal stress and corrosion in the burner box environment, ensuring your heating equipment maintains consistent performance throughout the season.

• Precise Fuel Delivery: Engineered with a #44 drill size to ensure exact natural gas flow and optimized combustion efficiency.
• OEM Compatibility: Authentic Reznor replacement part ensures perfect fitment and eliminates the guesswork of aftermarket universal alternatives.
• Rugged Build Quality: High-grade brass construction withstands high temperatures within the burner manifold for extended service life.
• Reduced Emission Levels: Maintaining the correct orifice size helps prevent improper fuel mixture, typical causes of soot and carbon monoxide issues.

Is the Reznor 11833 compatible with propane (LP) systems?
No, this is a natural gas orifice. For propane applications, you must use the manufacturer-specified LP orifice, typically featuring a smaller drill size like #55, but check your unit's rating plate first.

Can I use this orifice to convert my Reznor heater to natural gas?
Yes, this #44 burner orifice is often a standard component in natural gas conversion kits for specific 150 and 250 MBH models. Always verify the required orifice quantity and drill size in your heater's manual.

How do I identify if I need a #44 orifice?
The #44 size is standard for several Reznor heaters operating at typical manifold pressures. Consult the venting and installation manual or the rating plate located on the heater door for the correct part number.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.