Master Blade 4101.666

This replacement part is made of high-strength heat-resistant plastic. It is heat-resistant and wear-resistant, ensuring even heat distribution. The part is designed for easy installation and replacement. It fits selected Master heater models, including the B35CED, B145CEL, B150CED, and B300CED series.

Oil nozzles are selected to match the specific model and series of the heating unit. Verify the exact boiler or burner model number against the compatible models list before ordering. Ensure the mounting interface and physical dimensions match your equipment. Replacement follows the manufacturer's guidance for your unit's vintage and voltage specification if applicable.

Worn or damaged oil nozzles typically result in uneven heating, with hot spots in some areas and insufficient heat in others. You may notice the fan operating inconsistently or the burner cycling more frequently than normal. A blocked or degraded nozzle can reduce overall system efficiency and increase fuel consumption. If heat distribution becomes noticeably uneven or the equipment shows signs of struggling to maintain temperature, the nozzle should be inspected and replaced if necessary.