Dometic / Atwood 33807 Furnace Gas Valve - Gravity Style - Special Order

Dometic / Atwood 33807 Furnace Gas Valve – Old Style Gravity

Special Order Item (7–14 Business Days for Shipping)
Genuine OEM Replacement

Part Number: 33807
Product Type: Furnace Gas Valve
Application: Atwood HydroFlame® Furnaces (Old Style Gravity Models)

Product Overview

The Dometic / Atwood 33807 Furnace Gas Valve is a genuine OEM replacement designed for select older Atwood HydroFlame® gravity furnaces. This gas valve regulates propane flow to the burner assembly and is engineered specifically for old style gravity furnace configurations.

Unlike modern forced-air furnace systems, gravity furnaces rely on natural convection for air movement. Because of this design difference, the gas valve configuration and control characteristics must match the original gravity-style furnace specifications.

Replacing a faulty or leaking gas valve restores safe fuel control and reliable ignition performance in compatible HydroFlame gravity furnace systems.

Please Note: This is a Special Order item and typically ships within 7–14 business days.

Key Features

• Genuine OEM Dometic / Atwood replacement part
• Designed for older HydroFlame® gravity furnace models
• Regulates propane fuel flow to burner
• Restores proper ignition and fuel control
• Built to original equipment specifications
• Special Order item (7–14 business days for shipping)

Compatible Applications

Part 33807 is compatible with select Atwood HydroFlame® old style gravity furnaces.

Important: Always verify your furnace model number and confirm it is an older gravity-style model before ordering. This valve is not intended for modern forced-air 7900, 8500, 8900, or DF series furnaces.

If you are unsure whether your system is gravity or forced-air, check for a blower motor. Gravity models do not use a powered blower assembly.

When Should You Replace the Gas Valve?

You may need to replace the gas valve if you notice:

• Furnace will not ignite
• No propane flow to burner
• Intermittent gas operation
• Confirmed internal valve failure
• Gas leakage from the valve body

Gas valves are safety-critical components and must be replaced with the correct OEM configuration.

Product Specifications

• Manufacturer: Dometic / Atwood
• Part Number: 33807
• Component: Furnace Gas Valve
• Application: HydroFlame® Old Style Gravity Furnaces
• Fuel Type: Propane (LP)
• Includes: Gas valve assembly only
• Availability: Special Order – 7–14 Business Days

Frequently Asked Questions (FAQ)

Q: What is an “old style gravity” furnace?

A: Gravity furnaces do not use a blower motor. Heat rises naturally through convection rather than being forced through ductwork.

Q: Will this fit 8500 or 8900 series furnaces?

A: No. This valve is specifically designed for older HydroFlame gravity models.

Q: Why is this marked Special Order?

A: This legacy component is not typically stocked for immediate shipment and must be ordered through the distributor. Estimated shipping time is 7–14 business days.

Q: Is this an OEM part?

A: Yes. Part 33807 is a genuine Dometic / Atwood replacement gas valve.