Dometic LP Gas Furnace Orifice 1.25mm - Part# 30789

This Dometic LP gas furnace orifice is a critical precision component that regulates propane flow to your RV's heating system. The 1.25mm orifice opening ensures proper fuel delivery and combustion efficiency in Dometic furnaces. If your furnace isn't heating properly or is running inefficiently, a worn or clogged orifice is often the culprit—replacement restores full heating performance.

• Precision 1.25mm orifice opening for accurate propane metering
• OEM Dometic part ensures compatibility with original furnace specifications
• Restores proper fuel-to-air ratio for efficient combustion
• Small, easy-to-replace component that prevents heating system failures
• Essential maintenance part for RVs using LP gas furnaces
• Prevents incomplete combustion and carbon buildup

FAQ

How do I know if my furnace orifice needs replacement?
Signs include weak heating output, furnace cycling on and off frequently, yellow or orange flame color instead of blue, or the furnace not igniting at all. Clogs from propane residue or debris are common causes.

Is this orifice compatible with all Dometic furnace models?
This 1.25mm orifice fits many Dometic furnace models, but verify your specific furnace model number before ordering. Different Dometic furnaces may use different orifice sizes (1.0mm, 1.25mm, 1.5mm, etc.).

Can I install this myself?
Yes, orifice replacement is a straightforward DIY task for most RV owners. You'll typically need to access the furnace burner assembly and unscrew the old orifice. Always turn off propane and allow the furnace to cool before beginning work.

Why Elkhart RV Parts

We specialize in hard-to-find Dometic replacement parts and ship directly from Elkhart, Indiana—the RV capital of the world. Every part is genuine OEM Dometic stock, backed by expert customer support to help you identify the exact component your RV needs.