Suburban SF-FQ Series Furnace - 2555A
SF-FQ Models are designed for interior serviceability with a front (inside) gas connection and only a small vent terminal on the coach exterior, permitting installation up to 9 inches from the wall. Since no exterior access door is required, the SF-FQ is aesthetically appealing and a more economical installation choice. For design flexibility, all SF-Q Models feature identical cabinet dimensions and feature quiet, multi-ported stainless steel burners, sealed forced-draft combustion, automatic direct spark ignition and low amp draw.
Direct Discharge Furnaces With Attractive Grilles For Zone Heating Of Smaller RVs, Trailers, Truck Campers And Even Pop-Ups
Maximum Heating Performance In A Low-Profile Design
At Only 7-1/2 Inches High, They Can Be Easily Installed In Areas That Might Otherwise Be Left Unused
Provides Maximum Heating Performance In A Ducted Unit, With Capacities From 20,000 To 40,000 BTUH
Specifications
| Type |
LP Gas |
| BTU Level / Output |
25,000 BTU |
| Stage |
Dual |
| Ignition Type |
Direct Spark Ignition |
| Width |
17 inches |
| Height |
7.5 inches |
| Depth |
20 inches |
| With Access Door |
No |
What our Experts Think
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Efficient Heat Output: Produces 25,000 BTU of propane-powered, ducted heat — ideal for small to mid-size RVs, campers, and trailers needing reliable warmth.
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Space-Smart Design: Compact 7½" H × 17" W × 20" D low-profile cabinet fits tight spaces and unused areas, maximizing interior layout flexibility.
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Interior Serviceability: Designed with a front gas connection and no exterior access door, simplifying installation and reducing exterior modifications.
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Flexible Venting: Bottom, side, and top discharge options offer adaptable duct routing for varied RV layouts.
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Reliable Ignition & Operation: Automatic direct spark ignition paired with sealed forced-draft combustion ensures quick starts and consistent performance with low amp draw.
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Durable Construction: Engineered with quality materials to withstand vibration, frequent use, and typical RV travel conditions.
Q&A
Q: What is the Suburban SF‑FQ Series Furnace – 2555A?
A: A high‑performance propane RV furnace built to deliver dependable heat for motorhomes and travel trailers.
Q: What fuel does this furnace use?
A: It runs on LP (propane) gas.
Q: Is the 2555A suitable for RV heating?
A: Yes — specifically engineered for recreational vehicle HVAC systems.
Q: How does it perform?
A: Provides consistent, powerful heat output for comfort in cold weather.
Q: Is it energy efficient?
A: Yes — designed for efficient propane consumption.
Q: Is installation straightforward?
A: Yes — fits standard RV furnace openings for easy replacement or upgrade.
Q: Is this furnace safe to use?
A: Yes — includes built‑in safety features for secure operation.
Maintenance Tips
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Keep Vents Clear: Regularly clear intake and exhaust vents of snow, leaves, nests, and debris.
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Replace Filters: Change the air filter monthly during heavy use to maintain airflow and efficiency.
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Clean Interior: With power off, vacuum dust from blower, burners, and furnace interior.
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Inspect Gas Lines: Annually check gas connections for leaks using approved leak‑detection fluid.
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Check Flame: Ensure a stable blue flame; yellow or flickering flames may need adjustment.
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Test Controls: Verify thermostat accuracy and safety shut‑offs before the heating season.
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Annual Tune‑Up: Schedule a professional service yearly to inspect the heat exchanger and optimize performance.
Damage 
Loss 
Theft 
