De Dietrich 86667229 conversion kit BP/SIT

This conversion kit, branded De Dietrich and listed under manufacturer codes 86667229 and 336.508.001, is an LPG conversion kit. Parts of this type are used to adapt a burner or boiler designed for natural gas to run on liquefied petroleum gas (LPG). The kit typically includes replacement injectors or nozzles, a new gas valve setting reference, and any gaskets or seals needed for the changeover. The exact contents for this specific article are not detailed here, but in general such a kit alters the fuel metering and air‑fuel ratio to match the different calorific value and combustion characteristics of LPG. When selecting a conversion kit, the critical parameter is the exact boiler or burner model and the target gas family (e.g., propane or butane). The kit must match the appliance’s output range and the gas valve type. After fitting, the gas valve must be re‑set according to the manufacturer’s instructions, and combustion must be checked with an analyser – typically measuring CO₂ and CO levels to confirm the correct air‑fuel ratio. A conversion that is not followed by proper valve adjustment and verification can lead to incomplete combustion, sooting, or unsafe operation. For a heating engineer, this kit is relevant when converting a De Dietrich gas appliance from natural gas to LPG. The technician should verify the appliance model against De Dietrich’s conversion reference before ordering. The kit is part of the firing side of the system, interacting directly with the gas valve and the burner control; after conversion the ionisation electrode’s flame signal may need re‑checking to ensure reliable flame proving on the new gas. No further technical details – such as which specific models the kit fits or the number of injectors supplied – are available in this entry.