Ideal Smoke Retarder Kit VA S 420 174259

The Ideal 174259 is a smoke retarder kit intended for Ideal Commercial appliances on the VA S 420 application. The retarder sits in the flue gas path and slows the passage of combustion products, so more heat is given up to the water circuit and less smoke is carried away up the flue. It is a serviceable item, replaced when the retarder has become clogged, distorted or corroded.

• Visible smoke or haze at the flue terminal during normal running
• Soot or carbon deposits collecting around the flue outlet or heat exchanger
• Combustion readings drifting away from the commissioning figures
• Flue gas temperatures running higher than expected for the appliance
• Physical damage, distortion or heavy corrosion on the retarder itself

• Confirm the appliance model and serial number against the compatibility list before ordering.
• Cross-reference the alternative number 1179930 when checking older documentation or previous orders.