Description
The Armstrong Furnace R21566074U is a precision-engineered replacement oil burner nozzle designed to deliver reliable, consistent fuel atomization in oil-fired heating systems. With a rated flow rate of 0.65 GPH and an 80° Type B (solid cone) spray pattern, this nozzle ensures thorough fuel-air mixing for clean, efficient combustion and optimal furnace performance.
Key Features
- Flow rate: 0.65 GPH for precise fuel delivery
- Spray angle: 80° for wide, even fuel distribution
- Spray pattern: Type B (solid cone) for stable flame formation
- Designed as a direct OEM replacement for Armstrong Furnace systems
- Promotes efficient combustion and reduced fuel waste
- Helps maintain proper heat output and system efficiency
Application
This oil nozzle is a genuine Armstrong Furnace replacement part, making it ideal for HVAC technicians and service professionals performing routine maintenance or emergency repairs on compatible oil-fired furnaces. Replacing worn or clogged oil nozzles at regular service intervals helps prevent incomplete combustion, sooting, and reduced heating efficiency.
Why Replace Your Oil Nozzle?
- Worn nozzles cause poor atomization, leading to inefficient combustion
- Clogged or degraded nozzles can result in hard starts, sooting, or flame failure
- Annual nozzle replacement is a best-practice recommendation for oil-fired systems
- Using the correct OEM-spec nozzle ensures proper spray angle and flow rate are maintained
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