Suburban SF-42VHQ 40K BTU Ducted RV Furnace | Q Variant | H or V

Heat your mid-size or large RV with the Suburban SF-42VHQ 40,000 BTU Ducted Furnace (References SF-42Q, SFV-42Q, 2592A). Top-tier Suburban SF-VHQ series with 9 duct connection choices, quiet stainless steel burners, and horizontal OR vertical installation flexibility.

⚠️ Q Variant — Gas Connects at the BACK

Gas line connects at the top or side rear of the unit (Q variant). Plan for gas line routing if your existing installation has gas connecting elsewhere.

Horizontal OR Vertical Installation

SF-VHQ (Vertical / Horizontal Q variant) — fits in areas that fixed-orientation furnaces can't.

40,000 BTU Heating for Mid-Size to Large RVs

• BTU Input: 40,000 BTU/hr
• Ducted configuration
• LP propane fuel
• Automatic direct spark ignition
• Sealed forced-draft combustion — efficient burn

9 Duct Connection Choices

Almost unlimited design flexibility with duct connections available from:

• Top
• Front
• Sides
• Bottom

Duct Outlet Options: 4" round sides/bottom, 4" × 14" bottom

Quiet Multi-Ported Stainless Steel Burners

Quiet, multi-ported stainless steel burners deliver efficient combustion with reduced operating noise.

Compact 7.5" Height

At only 7.5" high, fits in areas that would otherwise go unused.

Electrical

• Voltage: 12V DC
• Amp Draw: 9.0 A

Dimensions and Weight

• Dimensions: 7.5" H × 17" W × 20" D
• Weight: 32 lbs

Cabinet-Consistent SF-VHQ Series

All SF-VHQ models have identical cabinet dimensions — meaningful for designers and installers who want cabinet consistency across BTU ranges within the SF-VHQ line.

Cross-Reference Part Numbers

• SF-42VHQ
• SF-42Q
• SFV-42Q
• 2592A

What's Included

• (1) Suburban SF-42VHQ furnace
• Vents
• Installation manual
• Original manufacturer box

2-Year Suburban Manufacturer Warranty

⚠️ Professional Installation Required

RV furnace installation involves working with propane gas, 12V DC electrical, ducting, and structural mounting. Installation should be performed by a qualified RV service technician. Always leak-test gas connections after installation.

Pairs with Suburban SF Series Repair Parts

If you're servicing or restoring a Suburban furnace, consider these related repair parts:

• Igniter electrodes: Suburban 525009 (broad SF/SFV compatibility) or 525051 (SF/SFV Q and FQ specific)

Genuine Suburban / AirXcel OEM

Key Features

• Genuine Suburban SF-42VHQ 40,000 BTU ducted furnace
• Q variant — gas connects at top or side rear
• Horizontal OR vertical installation
• 40,000 BTU/hr input
• LP propane fuel with automatic direct spark ignition
• Sealed forced-draft combustion
• Quiet multi-ported stainless steel burners
• 12V DC, 9.0 amp draw
• 9 duct connection choices (top, front, sides, bottom)
• 4" round sides/bottom + 4" × 14" bottom duct outlets
• Compact 7.5" H — fits in tight spaces
• Cross-references: SF-42Q, SFV-42Q, 2592A
• Includes: Vents, manual, original manufacturer box
• Dimensions: 7.5" × 17" × 20"
• Weight: 32 lbs
• Backed by 2-year Suburban manufacturer warranty

Specifications

• Brand: Suburban (AirXcel)
• Model: SF-42VHQ
• Cross-References: SF-42Q, SFV-42Q, 2592A
• Type: Ducted RV Furnace
• Heating Input: 40,000 BTU/hr
• Fuel: LP (Propane)
• Ignition: Automatic Direct Spark Ignition
• Combustion: Sealed forced-draft
• Burner: Multi-ported stainless steel
• Gas Connection Location: Top or side rear (Q variant)
• Installation Orientation: Horizontal OR Vertical
• Voltage: 12V DC
• Amp Draw: 9.0 A
• Duct Connection Choices: 9 (top, front, sides, bottom)
• Duct Outlets: 4" round sides/bottom; 4" × 14" bottom
• Dimensions: 7.5" H × 17" W × 20" D
• Weight: 32 lbs
• Includes: Furnace, vents, manual, original manufacturer box
• Warranty: 2-year Suburban manufacturer warranty