Dometic Atwood 10-Gal Water Heater Main Burner | 93221 | Pilot

Restore reliable ignition and burner operation to your 10-gallon Atwood/Dometic RV water heater with the Dometic / Atwood 93221 Main Burner. This genuine Dometic OEM replacement main burner tube is the component where propane mixes with combustion air and ignites — delivering the flame that actually heats your water. The right replacement for older 10-gallon Atwood water heaters with pilot ignition systems.

⚠️ For 10-Gallon Pilot Ignition Models ONLY

The 93221 is specifically for 10-gallon Atwood/Dometic water heaters with PILOT IGNITION — the older generation that uses a standing pilot light rather than Direct Spark Ignition (DSI). Compatible models include:

• G10 Series: G10-1, G10-1P, G10-2, G10-2P
• GC10 Series: GC10-1, GC10-2, GC10-2P
• GC10A Series: GC10A-2, GC10A-2P

Verify your existing water heater model on the manufacturer label before ordering — the 93221 is specifically for pilot ignition 10-gallon models and is NOT interchangeable with DSI (electronic ignition) variants or 6-gallon water heaters.

Pilot Ignition vs Direct Spark Ignition

The "P" suffix on some compatible models (G10-1P, G10-2P, etc.) indicates pilot ignition variants. Visual cues that identify a pilot ignition water heater:

• Standing pilot flame visible through a viewport when operating properly
• Thermocouple in proximity to the pilot to sense flame presence
• Pilot tubing running from the gas valve to a separate pilot assembly
• Older "E"-suffix-less or P-suffix model designations

If your water heater has an electronic spark igniter and no standing pilot light, you have a DSI model — and the 93221 is NOT the correct burner.

What This Burner Does

The main burner is where propane combustion actually happens in your water heater:

• Propane enters the burner tube from the gas valve
• Mixes with combustion air drawn through the air shutter
• The pilot flame ignites the main burner mixture, creating the heating flame
• The flame heats the water through the tank's heat exchange surface

The burner is in a hostile environment — constant flame exposure, thermal cycling, combustion byproducts, and moisture. Over time, even quality burners degrade.

Common Failure Symptoms

Common reasons to replace the main burner include:

• Hard ignition — water heater struggles to light from pilot
• Poor flame quality — yellow flame, sooty burning, irregular pattern
• Carbon buildup on the burner that doesn't clean off
• Corrosion or rust on the burner tube or orifice area
• Burner damage — cracks, deformation, or visible wear
• Repeated flame drop-out mid-cycle

If your water heater is failing to ignite reliably or burns poorly, inspect the burner alongside the gas valve, pilot assembly, and thermocouple — all are critical to clean combustion in pilot ignition systems.

Zinc-Finished Construction

The 93221 features zinc-coated metal construction — providing corrosion resistance in the burner area where combustion byproducts and moisture create a corrosive environment. Standard durable material for water heater main burners.

Genuine Dometic OEM Replacement

As a Dometic factory replacement part, the 93221 is built to original specifications for a precise drop-in fit in compatible water heater installations.

⚠️ Professional Installation Recommended

Main burner replacement involves opening the water heater's combustion chamber, working around the gas valve and propane connections, and verifying proper combustion after installation. Installation should be performed by a qualified RV service technician. Always check for proper flame appearance, leak-test propane connections, and verify safe operation after any burner service.

Key Features

• Genuine Dometic / Atwood OEM main burner
• For 10-gallon Atwood/Dometic LP gas water heaters with PILOT IGNITION
• Compatible models: G10, G10-P, GC10, GC10-P, GC10A, GC10A-P series
• NOT compatible with Direct Spark Ignition (DSI / "E" suffix) models
• NOT compatible with 6-gallon water heaters
• Zinc-finished metal construction for corrosion resistance
• Direct OEM replacement

Specifications

• Brand: Dometic (Atwood)
• Part Number: 93221
• Type: Main Burner Tube
• Application: 10-gallon Atwood/Dometic LP gas water heaters with pilot ignition
• Ignition Type: Pilot
• Material: Metal
• Finish/Color: Zinc
• Compatible Models: G10-1, G10-1P, G10-2, G10-2P, GC10-1, GC10-2, GC10-2P, GC10A-2, GC10A-2P
• NOT Compatible With: Direct Spark Ignition (DSI) models or 6-gallon water heaters