Reznor 61652 Orifice

As an HVAC technician, you know that unit performance starts with an exact fuel-to-air mixture. The Reznor 61652 Orifice is a precision-engineered LP main burner orifice designed specifically for liquid propane conversions and replacements in Reznor heating units. This 1.45 mm brass orifice is critical for maintaining the correct manifold pressure and input rate, ensuring clean combustion and preventing the soot buildup or delayed ignition often seen with improper drill sizes. Manufactured to OEM Reznor specifications, this component features high-grade corrosion-resistant brass construction to withstand the thermal stress of high-efficiency heat exchangers. Whether you are performing a field gas conversion or replacing a clogged burner port, using a genuine Reznor 61652 ensures your unit maintains its industrial-grade efficiency and thermal output. This orifice is compatible with several Reznor F-series and UDX models requiring a 1.45 mm propane feed, making it a staple for any service truck specializing in commercial unit heater repair.

• Precision Metering: The 1.45 mm bore ensures an accurate propane flow rate to match the burner's BTU requirements.
• OEM Compatibility: Designed specifically for Reznor gas-fired unit heaters, ensuring a tight fit into the manifold assembly.
• Durable Construction: Heavy-duty brass resists oxidation and high-temperature degradation over long service cycles.
• Combustion Stability: Helps eliminate yellow-tipping and burner resonance by providing a consistent gas stream.

Can I use this orifice for a high-altitude installation?
Standard orifices like the Reznor 61652 are sized for sea-level operation; high-altitude applications typically require a specific derating kit or different orifice sizing as per the manufacturer's altitude chart.

Is this compatible with natural gas units?
No, this part is specifically for liquid propane (LP). Natural gas orifices have significantly larger drill sizes; mixing them will cause hazardous combustion conditions.

How do I ensure a leak-free seal?
Always use a backup wrench on the manifold when removing or installing the brass orifice plug to prevent cracking the gas train or manifold threads.

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.