Ideal Diffuser 177969

The Ideal 177969 is a diffuser listed for Ideal Commercial appliances. A diffuser sits in the combustion air or flue path and spreads the gas flow evenly across the burner or heat exchanger face, which helps keep combustion stable and the flame pattern consistent. This item is catalogued by Ideal under the part number 177969 and is also referenced as 4035949.

• Combustion readings drift outside the expected range and cannot be corrected by adjustment alone.
• The diffuser shows distortion, cracking, corrosion or heavy soot build-up on its surface.
• Discolouration or scorching around the burner or combustion chamber area.
• Unstable flame pattern, noise or vibration from the combustion chamber.
• Repeated flame failure or lockout that traces back to the air and flue path.

• Confirm your appliance model and serial number against the compatibility list before ordering.
• Compare the part number on the existing diffuser with 177969 and cross-check the alternative numbers 1180577 and 4035949.
• Inspect any gaskets, seals or fixings on the burner and combustion cover while the appliance is open, and renew them if they are compressed or damaged.
• Work on the combustion circuit should be carried out by a competent engineer in line with the appliance manufacturer's instructions.