Suburban 2559A RV Furnace – SF-30Q Series, 30,000 BTU Ducted Furnace

Quiet, Powerful Heating with Flexible Ducting Options

The Suburban 2559A SF-30Q furnace is a 30,000 BTU LP gas RV furnace designed for reliable, whole-coach heating with flexible duct configurations. Built on Suburban’s “Q” (quiet) platform, this furnace delivers strong performance while reducing operational noise.

With multiple duct discharge options and energy-saving direct spark ignition, the SF-30Q is an excellent solution for evenly distributing heat throughout mid- to large-size RVs.

Who This Furnace Is Best For

This furnace is ideal for RV owners who need strong, ducted heating with flexible installation:

• Owners of travel trailers, fifth wheels, and motorhomes with ducted systems
• RVs requiring side, top, or bottom duct discharge configurations
• Customers replacing an older SF-30 or SF-30Q furnace
• RVers looking for quiet operation with consistent airflow
• Cold-weather users needing reliable, whole-RV heating performance

This model is especially well-suited for multi-room RV layouts where even heat distribution is essential.

Features & Benefits

• 30,000 BTU heating capacity for mid- to large-size RVs
• Quiet operation design (Q series)
• Multiple duct discharge options (side, top, and bottom)
• One-stage heating for consistent performance
• Energy-saving direct spark ignition system
• Designed for ducted heating systems
• Includes vent kit for 1-1/2 inch wall installations
• Reliable performance in cold-weather conditions
• Backed by a limited 2-year warranty

Specifications

Brand: Suburban

Part Number: 2559A

Series: SF-Q

Model: SF-30Q

Fuel Type: LP Gas

BTU Output: 30,000 BTU

Stage: 1 Stage

Amp Draw: 7 Amps

Width: 17 Inches

Height: 7-1/2 Inches

Depth: 20 Inches

Weight: 25.82 Pounds

Ignition Type: Direct spark ignition

Ducting: Side, top, and bottom discharge

Vent Kit: Included (for 1-1/2 inch wall)

Warranty: Limited 2 year

Why Choose the SF-30Q?

Compared to older or less flexible furnaces, the SF-30Q offers:

• Quiet operation for improved comfort
• Flexible ducting for better airflow distribution
• Reliable ignition with energy-efficient performance
• Consistent heat across multiple living areas
• Compatibility with a wide range of RV ducted systems

It’s a strong option for both replacement and new installations requiring dependable, evenly distributed heat.

When Do You Need to Replace Your Furnace?

Consider upgrading if you experience:

• Uneven heating throughout your RV
• Excessive furnace noise
• Frequent ignition or cycling issues
• Aging furnace struggling to heat larger spaces
• Limited airflow or poor duct performance

Pro Tip

Proper duct sealing and layout are key to maximizing furnace performance. Even with a high-BTU furnace like the SF-30Q, poor ducting can reduce airflow and efficiency.

FAQ

Q: Is this a ducted furnace?
A: Yes. The SF-30Q is designed for ducted heating with multiple discharge options.

Q: What does “Q” mean?
A: The “Q” series is designed for quieter operation and improved airflow compared to older furnace models.

Q: Does this include a vent kit?
A: Yes. This model includes a vent kit for 1-1/2 inch wall installations.