Suburban SF-30VHQ 30,000 BTU Ducted Horizontal Vertical RV Furnace

Heat your mid-size or large RV reliably with the Suburban SF-Q Series Furnace, a ducted 30,000 BTU/h propane furnace engineered for maximum heating performance and flexible installation. With both horizontal and vertical mounting options, the SF-Q can tuck into compartments and corners that might otherwise go to waste — a real advantage when you're working with the tight, irregular spaces typical of RV builds.

Solid Heating Performance for Bigger Rigs

At 30,000 BTU/h input, the SF-Q delivers serious heat for mid-size and large RVs — enough capacity to keep things comfortable in cold weather without the furnace running flat-out around the clock. The ducted design distributes warm air more evenly throughout the rig than non-ducted alternatives, eliminating cold spots in bedrooms and bathrooms.

Wide Replacement Compatibility

The SF-Q is built to replace a long list of older Suburban, Dometic, and Atwood furnace models, making it a versatile upgrade or repair part for many RVs:

• Suburban SF30, SF-30Q, SF-30QHT
• Suburban SF25, SF25Q, SF25QHT
• Dometic DFMD Furnaces
• Atwood AFMD Furnaces
• Atwood / Dometic HydroFlame 30k BTU Furnaces

Important Compatibility Note for Atwood/Dometic Replacements

If you're replacing a Dometic or Atwood furnace with this Suburban unit, please note two key differences:

• Dometic/Atwood furnaces are 1" less in width than Suburban units
• The gas line on Suburban units is on the right side, not the left as on Atwood/Dometic furnaces

You'll need to be able to accommodate these two details before installing.

What's Included & Important Notes

• Includes vents, screws, and manual
• While these are brand-new, they do not come in the original manufacturer box — they are double-boxed for safe shipping to prevent damage
• There may be minor bends on the edges of the cage, as the aluminum is very pliable
• Backed by a 1-year warranty through The RV Surplus

Key Features

• 30,000 BTU/h heating capacity
• Ducted design for even heat distribution
• Horizontal or vertical installation for design flexibility
• LP (propane) fuel
• 12V operation with a 7-amp draw
• Wide replacement compatibility across Suburban, Dometic, and Atwood models
• Includes vents, screws, and manual
• 1-year warranty through The RV Surplus

Specifications

• Brand: Suburban
• Series: SF-Q
• Type: Ducted RV Furnace
• Heating Input: 30,000 BTU/h
• Fuel: LP (propane)
• Voltage: 12V
• Amp Draw: 7 A
• Dimensions: 7.5" x 17" x 20"
• Weight: 29 lbs
• Ducts Required: (3) 4"
• Required Return: 55 in²